diff --git a/poetry.lock b/poetry.lock
index eb01deec..a990eeb8 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -52,6 +52,226 @@ files = [
 [package.extras]
 license = ["ukkonen"]
 
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+    {file = "memray-1.13.4-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e585d866c82ce92060fa1c925298aa8b89936ca22df9698a25a5f0cf7ca81fa2"},
+    {file = "memray-1.13.4-cp311-cp311-musllinux_1_1_x86_64.whl", hash = "sha256:3d048da01dc138711a2c9c70ba693d186690c98fb0ca26fdc3483486d4849238"},
+    {file = "memray-1.13.4-cp312-cp312-macosx_10_14_x86_64.whl", hash = "sha256:b6459761046ab46638d2c62d7f3f55eaaf45a947bd1d36dcfb5e860047280557"},
+    {file = "memray-1.13.4-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:637651f5ca2870e9156f189c337e8c6d0002e3f6f7d44d6486ff5baf12a6115e"},
+    {file = "memray-1.13.4-cp312-cp312-manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:d5b9e10fde6f652ea176cbc0d4d4c563d2831faec4434d3e03c4c0aff8ddc6c0"},
+    {file = "memray-1.13.4-cp312-cp312-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:f1f3ab803b703b9be29259039caf43803ad5abf37f04e77cd9e8373054dd91f6"},
+    {file = "memray-1.13.4-cp312-cp312-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:bfdc070da2df9241f78b7429d44f6ee16e924d43eddc587f6ed7218c4cb792d3"},
+    {file = "memray-1.13.4-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:523a63dee71cd4d55eddca866244a045e7549ca5137ec906c62893b87a2161ce"},
+    {file = "memray-1.13.4-cp312-cp312-musllinux_1_1_x86_64.whl", hash = "sha256:3bf06f8883a26b779cc828addad97a2d39d7587263e348655dae3ec90b6ee079"},
+    {file = "memray-1.13.4-cp37-cp37m-manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:ee47b798d5712faa2a38ff60b5c77f73ed8342709e15bd6ed3a46edd9feee089"},
+    {file = "memray-1.13.4-cp37-cp37m-manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:daed9ae6ceea6a4dcc96ac62cfa00d90f7365ed54ee90886e5287251855a2c02"},
+    {file = "memray-1.13.4-cp37-cp37m-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:cc194c5564f5b33d33bbbeca54b0e3f637d985a144c3551f887bf668d896ffec"},
+    {file = "memray-1.13.4-cp37-cp37m-musllinux_1_1_x86_64.whl", hash = "sha256:554cda50101a14e1bca2453bd1013949cdc4ebcd4709065139955578f8b0c354"},
+    {file = "memray-1.13.4-cp38-cp38-macosx_10_14_x86_64.whl", hash = "sha256:e3e261995acc40f8bd4a10740b25f37eccc3e413449ceb73263216ec3c6fee7b"},
+    {file = "memray-1.13.4-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:5e8ef7cc755a5a3a4b5d9991cf70428220e9138bc5967b5764b2fa7a1fb4d7a6"},
+    {file = "memray-1.13.4-cp38-cp38-manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:7c8ea410c842a31ee07e76b409c273d23e0b670d166c2330488d1164ab42a4d1"},
+    {file = "memray-1.13.4-cp38-cp38-manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:22c9656c78a50b4569a8273d062cc6c139e9f7cfec3f793e60ef7e0cb46c2a76"},
+    {file = "memray-1.13.4-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:7096401ff3b7ce5f759e45bd71b0899ad50a607924ee23ad02423aa4fa505f52"},
+    {file = "memray-1.13.4-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:2072a454846e055d5833d17b1f5e6106ae18e425974c3968276a1952b0156f2b"},
+    {file = "memray-1.13.4-cp39-cp39-macosx_10_14_x86_64.whl", hash = "sha256:f19fb4a20d796af869691531d2d6540d27bfbf0df9118bd17e547a23224a8b3e"},
+    {file = "memray-1.13.4-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:b1331de55aab1c409ec295b155770487004e0c6d08db0fe903e9377be978bacd"},
+    {file = "memray-1.13.4-cp39-cp39-manylinux_2_12_i686.manylinux2010_i686.whl", hash = "sha256:f43bfa96114012d76025a0ee42206c7d914b6113c491dc221e1b7a901c51242a"},
+    {file = "memray-1.13.4-cp39-cp39-manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:e0cc6299a09d3c51fd1a45bd816e9dd68a7092a3eaf62aeaa2ee01068f2a1d0b"},
+    {file = "memray-1.13.4-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:4cbaa39bf7041e32282ad84a9fd9bd98622f78f649ccb7d1075382fed84e8125"},
+    {file = "memray-1.13.4-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:59bba975fbbced85fe6f61685aef459777faf3b8a5b4f0de4fa5b99cf6f1a5e7"},
+    {file = "memray-1.13.4.tar.gz", hash = "sha256:48f8f9b89b3a84028668244151eb7248189fb3f4f2a761ec1211439adcbb2ad1"},
+]
+
+[package.dependencies]
+jinja2 = ">=2.9"
+rich = ">=11.2.0"
+textual = ">=0.41.0"
+
+[package.extras]
+benchmark = ["asv"]
+dev = ["Cython", "asv", "black", "bump2version", "check-manifest", "flake8", "furo", "greenlet", "ipython", "isort", "mypy", "pytest", "pytest-cov", "pytest-textual-snapshot", "setuptools", "sphinx", "sphinx-argparse", "textual (>=0.43,!=0.65.2,!=0.66)", "towncrier"]
+docs = ["IPython", "bump2version", "furo", "sphinx", "sphinx-argparse", "towncrier"]
+lint = ["black", "check-manifest", "flake8", "isort", "mypy"]
+test = ["Cython", "greenlet", "ipython", "pytest", "pytest-cov", "pytest-textual-snapshot", "setuptools", "textual (>=0.43,!=0.65.2,!=0.66)"]
+
 [[package]]
 name = "nodeenv"
 version = "1.8.0"
@@ -99,6 +319,20 @@ nodeenv = ">=0.11.1"
 pyyaml = ">=5.1"
 virtualenv = ">=20.10.0"
 
+[[package]]
+name = "pygments"
+version = "2.18.0"
+description = "Pygments is a syntax highlighting package written in Python."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pygments-2.18.0-py3-none-any.whl", hash = "sha256:b8e6aca0523f3ab76fee51799c488e38782ac06eafcf95e7ba832985c8e7b13a"},
+    {file = "pygments-2.18.0.tar.gz", hash = "sha256:786ff802f32e91311bff3889f6e9a86e81505fe99f2735bb6d60ae0c5004f199"},
+]
+
+[package.extras]
+windows-terminal = ["colorama (>=0.4.6)"]
+
 [[package]]
 name = "pyyaml"
 version = "6.0.1"
@@ -159,6 +393,24 @@ files = [
     {file = "PyYAML-6.0.1.tar.gz", hash = "sha256:bfdf460b1736c775f2ba9f6a92bca30bc2095067b8a9d77876d1fad6cc3b4a43"},
 ]
 
+[[package]]
+name = "rich"
+version = "13.7.1"
+description = "Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal"
+optional = false
+python-versions = ">=3.7.0"
+files = [
+    {file = "rich-13.7.1-py3-none-any.whl", hash = "sha256:4edbae314f59eb482f54e9e30bf00d33350aaa94f4bfcd4e9e3110e64d0d7222"},
+    {file = "rich-13.7.1.tar.gz", hash = "sha256:9be308cb1fe2f1f57d67ce99e95af38a1e2bc71ad9813b0e247cf7ffbcc3a432"},
+]
+
+[package.dependencies]
+markdown-it-py = ">=2.2.0"
+pygments = ">=2.13.0,<3.0.0"
+
+[package.extras]
+jupyter = ["ipywidgets (>=7.5.1,<9)"]
+
 [[package]]
 name = "setuptools"
 version = "69.0.2"
@@ -175,6 +427,50 @@ docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "pygments
 testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.develop (>=7.21)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pip (>=19.1)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-ruff", "pytest-timeout", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
 testing-integration = ["build[virtualenv] (>=1.0.3)", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "packaging (>=23.1)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"]
 
+[[package]]
+name = "textual"
+version = "0.73.0"
+description = "Modern Text User Interface framework"
+optional = false
+python-versions = "<4.0,>=3.8"
+files = [
+    {file = "textual-0.73.0-py3-none-any.whl", hash = "sha256:4d93d80d203f7fb7ba51828a546e8777019700d529a1b405ceee313dea2edfc2"},
+    {file = "textual-0.73.0.tar.gz", hash = "sha256:ccd1e873370577f557dfdf2b3411f2a4f68b57d4365f9d83a00d084afb15f5a6"},
+]
+
+[package.dependencies]
+markdown-it-py = {version = ">=2.1.0", extras = ["linkify", "plugins"]}
+rich = ">=13.3.3"
+typing-extensions = ">=4.4.0,<5.0.0"
+
+[package.extras]
+syntax = ["tree-sitter (>=0.20.1,<0.21.0)", "tree-sitter-languages (==1.10.2)"]
+
+[[package]]
+name = "typing-extensions"
+version = "4.12.2"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "typing_extensions-4.12.2-py3-none-any.whl", hash = "sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d"},
+    {file = "typing_extensions-4.12.2.tar.gz", hash = "sha256:1a7ead55c7e559dd4dee8856e3a88b41225abfe1ce8df57b7c13915fe121ffb8"},
+]
+
+[[package]]
+name = "uc-micro-py"
+version = "1.0.3"
+description = "Micro subset of unicode data files for linkify-it-py projects."
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "uc-micro-py-1.0.3.tar.gz", hash = "sha256:d321b92cff673ec58027c04015fcaa8bb1e005478643ff4a500882eaab88c48a"},
+    {file = "uc_micro_py-1.0.3-py3-none-any.whl", hash = "sha256:db1dffff340817673d7b466ec86114a9dc0e9d4d9b5ba229d9d60e5c12600cd5"},
+]
+
+[package.extras]
+test = ["coverage", "pytest", "pytest-cov"]
+
 [[package]]
 name = "virtualenv"
 version = "20.25.0"
@@ -198,4 +494,4 @@ test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.11,<4.0"
-content-hash = "81b51eedb42913cf4a2aa03ed4355958b0015877dc68213d0ada5918a1b12cef"
+content-hash = "00405543456d0c945517a7a4f1c9dc20b3af8272237ac494481770358f7e7728"
diff --git a/pydub/audio_segment.py b/pydub/audio_segment.py
index 05e7595a..81bbd502 100644
--- a/pydub/audio_segment.py
+++ b/pydub/audio_segment.py
@@ -221,7 +221,7 @@ def __init__(self, data=None, *args, **kwargs):
                 self._data = audioop.bias(self._data, 1, -128)
 
         if self.sample_width == 3:
-            self._data = convert_24bit_to_32bit(bytearray(self._data)).tobytes()
+            self._data = convert_24bit_to_32bit(self._data)
             self.sample_width = 4
             self.frame_width = self.channels * self.sample_width
 
diff --git a/pydub/sample.c b/pydub/sample.c
index 74ea9ca2..a0fb5616 100644
--- a/pydub/sample.c
+++ b/pydub/sample.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 3.0.7 */
+/* Generated by Cython 3.0.10 */
 
 /* BEGIN: Cython Metadata
 {
@@ -41,10 +41,10 @@ END: Cython Metadata */
 #else
 #define __PYX_EXTRA_ABI_MODULE_NAME ""
 #endif
-#define CYTHON_ABI "3_0_7" __PYX_EXTRA_ABI_MODULE_NAME
+#define CYTHON_ABI "3_0_10" __PYX_EXTRA_ABI_MODULE_NAME
 #define __PYX_ABI_MODULE_NAME "_cython_" CYTHON_ABI
 #define __PYX_TYPE_MODULE_PREFIX __PYX_ABI_MODULE_NAME "."
-#define CYTHON_HEX_VERSION 0x030007F0
+#define CYTHON_HEX_VERSION 0x03000AF0
 #define CYTHON_FUTURE_DIVISION 1
 #include <stddef.h>
 #ifndef offsetof
@@ -136,6 +136,8 @@ END: Cython Metadata */
   #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
     #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
   #endif
+  #undef CYTHON_USE_FREELISTS
+  #define CYTHON_USE_FREELISTS 0
 #elif defined(PYPY_VERSION)
   #define CYTHON_COMPILING_IN_PYPY 1
   #define CYTHON_COMPILING_IN_CPYTHON 0
@@ -197,6 +199,8 @@ END: Cython Metadata */
   #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
     #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
   #endif
+  #undef CYTHON_USE_FREELISTS
+  #define CYTHON_USE_FREELISTS 0
 #elif defined(CYTHON_LIMITED_API)
   #ifdef Py_LIMITED_API
     #undef __PYX_LIMITED_VERSION_HEX
@@ -258,6 +262,8 @@ END: Cython Metadata */
   #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
     #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
   #endif
+  #undef CYTHON_USE_FREELISTS
+  #define CYTHON_USE_FREELISTS 0
 #elif defined(Py_GIL_DISABLED) || defined(Py_NOGIL)
   #define CYTHON_COMPILING_IN_PYPY 0
   #define CYTHON_COMPILING_IN_CPYTHON 0
@@ -267,11 +273,17 @@ END: Cython Metadata */
   #ifndef CYTHON_USE_TYPE_SLOTS
     #define CYTHON_USE_TYPE_SLOTS 1
   #endif
+  #ifndef CYTHON_USE_TYPE_SPECS
+    #define CYTHON_USE_TYPE_SPECS 0
+  #endif
   #undef CYTHON_USE_PYTYPE_LOOKUP
   #define CYTHON_USE_PYTYPE_LOOKUP 0
   #ifndef CYTHON_USE_ASYNC_SLOTS
     #define CYTHON_USE_ASYNC_SLOTS 1
   #endif
+  #ifndef CYTHON_USE_PYLONG_INTERNALS
+    #define CYTHON_USE_PYLONG_INTERNALS 0
+  #endif
   #undef CYTHON_USE_PYLIST_INTERNALS
   #define CYTHON_USE_PYLIST_INTERNALS 0
   #ifndef CYTHON_USE_UNICODE_INTERNALS
@@ -279,8 +291,6 @@ END: Cython Metadata */
   #endif
   #undef CYTHON_USE_UNICODE_WRITER
   #define CYTHON_USE_UNICODE_WRITER 0
-  #undef CYTHON_USE_PYLONG_INTERNALS
-  #define CYTHON_USE_PYLONG_INTERNALS 0
   #ifndef CYTHON_AVOID_BORROWED_REFS
     #define CYTHON_AVOID_BORROWED_REFS 0
   #endif
@@ -292,11 +302,22 @@ END: Cython Metadata */
   #endif
   #undef CYTHON_FAST_THREAD_STATE
   #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_GIL
+  #define CYTHON_FAST_GIL 0
+  #ifndef CYTHON_METH_FASTCALL
+    #define CYTHON_METH_FASTCALL 1
+  #endif
   #undef CYTHON_FAST_PYCALL
   #define CYTHON_FAST_PYCALL 0
+  #ifndef CYTHON_PEP487_INIT_SUBCLASS
+    #define CYTHON_PEP487_INIT_SUBCLASS 1
+  #endif
   #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
     #define CYTHON_PEP489_MULTI_PHASE_INIT 1
   #endif
+  #ifndef CYTHON_USE_MODULE_STATE
+    #define CYTHON_USE_MODULE_STATE 0
+  #endif
   #ifndef CYTHON_USE_TP_FINALIZE
     #define CYTHON_USE_TP_FINALIZE 1
   #endif
@@ -304,6 +325,12 @@ END: Cython Metadata */
   #define CYTHON_USE_DICT_VERSIONS 0
   #undef CYTHON_USE_EXC_INFO_STACK
   #define CYTHON_USE_EXC_INFO_STACK 0
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 1
+  #endif
+  #ifndef CYTHON_USE_FREELISTS
+    #define CYTHON_USE_FREELISTS 0
+  #endif
 #else
   #define CYTHON_COMPILING_IN_PYPY 0
   #define CYTHON_COMPILING_IN_CPYTHON 1
@@ -394,6 +421,9 @@ END: Cython Metadata */
   #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
     #define CYTHON_UPDATE_DESCRIPTOR_DOC 1
   #endif
+  #ifndef CYTHON_USE_FREELISTS
+    #define CYTHON_USE_FREELISTS 1
+  #endif
 #endif
 #if !defined(CYTHON_FAST_PYCCALL)
 #define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
@@ -586,14 +616,14 @@ END: Cython Metadata */
         PyObject *exception_table = NULL;
         PyObject *types_module=NULL, *code_type=NULL, *result=NULL;
         #if __PYX_LIMITED_VERSION_HEX < 0x030B0000
-        PyObject *version_info; // borrowed
+        PyObject *version_info;
         PyObject *py_minor_version = NULL;
         #endif
         long minor_version = 0;
         PyObject *type, *value, *traceback;
         PyErr_Fetch(&type, &value, &traceback);
         #if __PYX_LIMITED_VERSION_HEX >= 0x030B0000
-        minor_version = 11; // we don't yet need to distinguish between versions > 11
+        minor_version = 11;
         #else
         if (!(version_info = PySys_GetObject("version_info"))) goto end;
         if (!(py_minor_version = PySequence_GetItem(version_info, 1))) goto end;
@@ -651,7 +681,7 @@ END: Cython Metadata */
                                                     PyObject *fv, PyObject *cell, PyObject* fn,
                                                     PyObject *name, int fline, PyObject *lnos) {
     PyCodeObject *result;
-    PyObject *empty_bytes = PyBytes_FromStringAndSize("", 0);  // we don't have access to __pyx_empty_bytes here
+    PyObject *empty_bytes = PyBytes_FromStringAndSize("", 0);
     if (!empty_bytes) return NULL;
     result =
       #if PY_VERSION_HEX >= 0x030C0000
@@ -737,8 +767,13 @@ END: Cython Metadata */
   typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args,
                                                           Py_ssize_t nargs, PyObject *kwnames);
 #else
-  #define __Pyx_PyCFunctionFast _PyCFunctionFast
-  #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
+  #if PY_VERSION_HEX >= 0x030d00A4
+  #  define __Pyx_PyCFunctionFast PyCFunctionFast
+  #  define __Pyx_PyCFunctionFastWithKeywords PyCFunctionFastWithKeywords
+  #else
+  #  define __Pyx_PyCFunctionFast _PyCFunctionFast
+  #  define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
+  #endif
 #endif
 #if CYTHON_METH_FASTCALL
   #define __Pyx_METH_FASTCALL METH_FASTCALL
@@ -1090,7 +1125,7 @@ static CYTHON_INLINE PyObject * __Pyx_PyDict_GetItemStrWithError(PyObject *dict,
   #define __Pyx_PyBytes_GET_SIZE(o) PyBytes_Size(o)
   #define __Pyx_PyByteArray_GET_SIZE(o) PyByteArray_Size(o)
 #endif
-#if PY_VERSION_HEX >= 0x030d00A1
+#if __PYX_LIMITED_VERSION_HEX >= 0x030d00A1
   #define __Pyx_PyImport_AddModuleRef(name) PyImport_AddModuleRef(name)
 #else
   static CYTHON_INLINE PyObject *__Pyx_PyImport_AddModuleRef(const char *name) {
@@ -1177,7 +1212,7 @@ static CYTHON_INLINE float __PYX_NAN() {
 #endif
 
 #define __PYX_MARK_ERR_POS(f_index, lineno) \
-    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__;  (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
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@@ -1283,24 +1318,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
 #define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
 #define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
 #define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
-#if CYTHON_COMPILING_IN_LIMITED_API
-static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const wchar_t *u)
-{
-    const wchar_t *u_end = u;
-    while (*u_end++) ;
-    return (size_t)(u_end - u - 1);
-}
-#else
-static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
-{
-    const Py_UNICODE *u_end = u;
-    while (*u_end++) ;
-    return (size_t)(u_end - u - 1);
-}
-#endif
 #define __Pyx_PyUnicode_FromOrdinal(o)       PyUnicode_FromOrdinal((int)o)
-#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
-#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
@@ -1350,7 +1368,7 @@ static CYTHON_INLINE Py_hash_t __Pyx_PyIndex_AsHash_t(PyObject*);
   #endif
   typedef Py_ssize_t  __Pyx_compact_pylong;
   typedef size_t  __Pyx_compact_upylong;
-  #else  // Py < 3.12
+  #else
   #define __Pyx_PyLong_IsNeg(x)  (Py_SIZE(x) < 0)
   #define __Pyx_PyLong_IsNonNeg(x)  (Py_SIZE(x) >= 0)
   #define __Pyx_PyLong_IsZero(x)  (Py_SIZE(x) == 0)
@@ -1921,8 +1939,8 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
     #define __Pyx_Arg_NewRef_VARARGS(arg) __Pyx_NewRef(arg)
     #define __Pyx_Arg_XDECREF_VARARGS(arg) Py_XDECREF(arg)
 #else
-    #define __Pyx_Arg_NewRef_VARARGS(arg) arg // no-op
-    #define __Pyx_Arg_XDECREF_VARARGS(arg) // no-op - arg is borrowed
+    #define __Pyx_Arg_NewRef_VARARGS(arg) arg
+    #define __Pyx_Arg_XDECREF_VARARGS(arg)
 #endif
 #define __Pyx_NumKwargs_VARARGS(kwds) PyDict_Size(kwds)
 #define __Pyx_KwValues_VARARGS(args, nargs) NULL
@@ -1938,8 +1956,9 @@ static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int
   #else
     #define __Pyx_KwargsAsDict_FASTCALL(kw, kwvalues) _PyStack_AsDict(kwvalues, kw)
   #endif
-    #define __Pyx_Arg_NewRef_FASTCALL(arg) arg // no-op, __Pyx_Arg_FASTCALL is direct and this needs
-    #define __Pyx_Arg_XDECREF_FASTCALL(arg)  // no-op - arg was returned from array
+    #define __Pyx_Arg_NewRef_FASTCALL(arg) arg  /* no-op, __Pyx_Arg_FASTCALL is direct and this needs
+                                                   to have the same reference counting */
+    #define __Pyx_Arg_XDECREF_FASTCALL(arg)
 #else
     #define __Pyx_Arg_FASTCALL __Pyx_Arg_VARARGS
     #define __Pyx_NumKwargs_FASTCALL __Pyx_NumKwargs_VARARGS
@@ -2482,7 +2501,7 @@ typedef struct {
 #endif
     void *defaults;
     int defaults_pyobjects;
-    size_t defaults_size;  // used by FusedFunction for copying defaults
+    size_t defaults_size;
     int flags;
     PyObject *defaults_tuple;
     PyObject *defaults_kwdict;
@@ -2615,11 +2634,10 @@ static int __Pyx_ValidateAndInit_memviewslice(
                 PyObject *original_obj);
 
 /* ObjectToMemviewSlice.proto */
-static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_ds_unsigned_char(PyObject *, int writable_flag);
+static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_ds_unsigned_char__const__(PyObject *, int writable_flag);
 
 /* MemviewDtypeToObject.proto */
-static CYTHON_INLINE PyObject *__pyx_memview_get_unsigned_char(const char *itemp);
-static CYTHON_INLINE int __pyx_memview_set_unsigned_char(const char *itemp, PyObject *obj);
+static CYTHON_INLINE PyObject *__pyx_memview_get_unsigned_char__const__(const char *itemp);
 
 /* MemviewSliceCopyTemplate.proto */
 static __Pyx_memviewslice
@@ -2656,9 +2674,6 @@ static CYTHON_INLINE void __Pyx_XCLEAR_MEMVIEW(__Pyx_memviewslice *, int, int);
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_char(unsigned char value);
 
-/* CIntFromPy.proto */
-static CYTHON_INLINE unsigned char __Pyx_PyInt_As_unsigned_char(PyObject *);
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -2762,7 +2777,7 @@ static void __pyx_memoryview_slice_assign_scalar(__Pyx_memviewslice *, int, size
 static void __pyx_memoryview__slice_assign_scalar(char *, Py_ssize_t *, Py_ssize_t *, int, size_t, void *); /*proto*/
 static PyObject *__pyx_unpickle_Enum__set_state(struct __pyx_MemviewEnum_obj *, PyObject *); /*proto*/
 /* #### Code section: typeinfo ### */
-static __Pyx_TypeInfo __Pyx_TypeInfo_unsigned_char = { "unsigned char", NULL, sizeof(unsigned char), { 0 }, 0, __PYX_IS_UNSIGNED(unsigned char) ? 'U' : 'I', __PYX_IS_UNSIGNED(unsigned char), 0 };
+static __Pyx_TypeInfo __Pyx_TypeInfo_unsigned_char__const__ = { "const unsigned char", NULL, sizeof(unsigned char const ), { 0 }, 0, __PYX_IS_UNSIGNED(unsigned char const ) ? 'U' : 'I', __PYX_IS_UNSIGNED(unsigned char const ), 0 };
 /* #### Code section: before_global_var ### */
 #define __Pyx_MODULE_NAME "pydub.sample"
 extern int __pyx_module_is_main_pydub__sample;
@@ -2782,7 +2797,6 @@ static PyObject *__pyx_builtin_id;
 static PyObject *__pyx_builtin_IndexError;
 /* #### Code section: string_decls ### */
 static const char __pyx_k_[] = ": ";
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 static const char __pyx_k_O[] = "O";
 static const char __pyx_k_c[] = "c";
 static const char __pyx_k_i[] = "i";
@@ -3009,7 +3023,6 @@ typedef struct {
   PyObject *__pyx_n_s_ASCII;
   PyObject *__pyx_kp_s_All_dimensions_preceding_dimensi;
   PyObject *__pyx_n_s_AssertionError;
-  PyObject *__pyx_n_u_B;
   PyObject *__pyx_kp_s_Buffer_view_does_not_expose_stri;
   PyObject *__pyx_kp_s_Can_only_create_a_buffer_that_is;
   PyObject *__pyx_kp_s_Cannot_assign_to_read_only_memor;
@@ -3215,7 +3228,6 @@ static int __pyx_m_clear(PyObject *m) {
   Py_CLEAR(clear_module_state->__pyx_n_s_ASCII);
   Py_CLEAR(clear_module_state->__pyx_kp_s_All_dimensions_preceding_dimensi);
   Py_CLEAR(clear_module_state->__pyx_n_s_AssertionError);
-  Py_CLEAR(clear_module_state->__pyx_n_u_B);
   Py_CLEAR(clear_module_state->__pyx_kp_s_Buffer_view_does_not_expose_stri);
   Py_CLEAR(clear_module_state->__pyx_kp_s_Can_only_create_a_buffer_that_is);
   Py_CLEAR(clear_module_state->__pyx_kp_s_Cannot_assign_to_read_only_memor);
@@ -3399,7 +3411,6 @@ static int __pyx_m_traverse(PyObject *m, visitproc visit, void *arg) {
   Py_VISIT(traverse_module_state->__pyx_n_s_ASCII);
   Py_VISIT(traverse_module_state->__pyx_kp_s_All_dimensions_preceding_dimensi);
   Py_VISIT(traverse_module_state->__pyx_n_s_AssertionError);
-  Py_VISIT(traverse_module_state->__pyx_n_u_B);
   Py_VISIT(traverse_module_state->__pyx_kp_s_Buffer_view_does_not_expose_stri);
   Py_VISIT(traverse_module_state->__pyx_kp_s_Can_only_create_a_buffer_that_is);
   Py_VISIT(traverse_module_state->__pyx_kp_s_Cannot_assign_to_read_only_memor);
@@ -3603,7 +3614,6 @@ static int __pyx_m_traverse(PyObject *m, visitproc visit, void *arg) {
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 #define __pyx_kp_s_All_dimensions_preceding_dimensi __pyx_mstate_global->__pyx_kp_s_All_dimensions_preceding_dimensi
 #define __pyx_n_s_AssertionError __pyx_mstate_global->__pyx_n_s_AssertionError
-#define __pyx_n_u_B __pyx_mstate_global->__pyx_n_u_B
 #define __pyx_kp_s_Buffer_view_does_not_expose_stri __pyx_mstate_global->__pyx_kp_s_Buffer_view_does_not_expose_stri
 #define __pyx_kp_s_Can_only_create_a_buffer_that_is __pyx_mstate_global->__pyx_kp_s_Can_only_create_a_buffer_that_is
 #define __pyx_kp_s_Cannot_assign_to_read_only_memor __pyx_mstate_global->__pyx_kp_s_Cannot_assign_to_read_only_memor
@@ -17388,7 +17398,7 @@ static PyObject *__pyx_unpickle_Enum__set_state(struct __pyx_MemviewEnum_obj *__
  * 
  * @cython.boundscheck(False)             # <<<<<<<<<<<<<<
  * @cython.wraparound(False)
- * def convert_24bit_to_32bit(unsigned char[:] data):
+ * def convert_24bit_to_32bit(const unsigned char[:] data):
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 /* Python wrapper */
@@ -17456,7 +17466,7 @@ PyObject *__pyx_args, PyObject *__pyx_kwds
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+    __pyx_v_data = __Pyx_PyObject_to_MemoryviewSlice_ds_unsigned_char__const__(values[0], 0); if (unlikely(!__pyx_v_data.memview)) __PYX_ERR(0, 9, __pyx_L3_error)
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   int __pyx_t_6;
   Py_ssize_t __pyx_t_7;
   unsigned char __pyx_t_8;
-  PyObject *__pyx_t_9 = NULL;
+  char const *__pyx_t_9;
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+  PyObject *__pyx_t_11 = NULL;
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   /* "pydub/sample.pyx":11
- * def convert_24bit_to_32bit(unsigned char[:] data):
+ * def convert_24bit_to_32bit(const unsigned char[:] data):
  *     cdef int i
  *     cdef int p = 0             # <<<<<<<<<<<<<<
  *     cdef int len_data = data.size
@@ -17538,7 +17546,7 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
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  *     cdef unsigned char b0, b1, b2
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-  __pyx_t_1 = __pyx_memoryview_fromslice(__pyx_v_data, 1, (PyObject *(*)(char *)) __pyx_memview_get_unsigned_char, (int (*)(char *, PyObject *)) __pyx_memview_set_unsigned_char, 0);; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 12, __pyx_L1_error)
+  __pyx_t_1 = __pyx_memoryview_fromslice(__pyx_v_data, 1, (PyObject *(*)(char *)) __pyx_memview_get_unsigned_char__const__, (int (*)(char *, PyObject *)) NULL, 0);; if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 12, __pyx_L1_error)
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@@ -17626,7 +17634,7 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
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  */
       __pyx_t_7 = __pyx_v_i;
-      __pyx_v_b0 = (*((unsigned char *) ( /* dim=0 */ (__pyx_v_data.data + __pyx_t_7 * __pyx_v_data.strides[0]) )));
+      __pyx_v_b0 = (*((unsigned char const  *) ( /* dim=0 */ (__pyx_v_data.data + __pyx_t_7 * __pyx_v_data.strides[0]) )));
 
       /* "pydub/sample.pyx":23
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@@ -17636,7 +17644,7 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
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  */
       __pyx_t_7 = (__pyx_v_i + 1);
-      __pyx_v_b1 = (*((unsigned char *) ( /* dim=0 */ (__pyx_v_data.data + __pyx_t_7 * __pyx_v_data.strides[0]) )));
+      __pyx_v_b1 = (*((unsigned char const  *) ( /* dim=0 */ (__pyx_v_data.data + __pyx_t_7 * __pyx_v_data.strides[0]) )));
 
       /* "pydub/sample.pyx":24
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@@ -17646,7 +17654,7 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
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       __pyx_t_7 = (__pyx_v_i + 2);
-      __pyx_v_b2 = (*((unsigned char *) ( /* dim=0 */ (__pyx_v_data.data + __pyx_t_7 * __pyx_v_data.strides[0]) )));
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@@ -17695,7 +17703,7 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
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  *             p += 4             # <<<<<<<<<<<<<<
  * 
- *         return array.array("B", result_bytes[:len_result])
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@@ -17703,48 +17711,23 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
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  * 
- *         return array.array("B", result_bytes[:len_result])             # <<<<<<<<<<<<<<
+ *         return bytes(result_bytes[:len_result])             # <<<<<<<<<<<<<<
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-      __Pyx_ErrRestore(__pyx_t_12, __pyx_t_13, __pyx_t_14);
-      __pyx_t_12 = 0; __pyx_t_13 = 0; __pyx_t_14 = 0; __pyx_t_15 = 0; __pyx_t_16 = 0; __pyx_t_17 = 0;
-      __pyx_lineno = __pyx_t_3; __pyx_clineno = __pyx_t_5; __pyx_filename = __pyx_t_11;
+      __Pyx_ErrRestore(__pyx_t_10, __pyx_t_11, __pyx_t_12);
+      __pyx_t_10 = 0; __pyx_t_11 = 0; __pyx_t_12 = 0; __pyx_t_13 = 0; __pyx_t_14 = 0; __pyx_t_15 = 0;
+      __pyx_lineno = __pyx_t_3; __pyx_clineno = __pyx_t_5; __pyx_filename = __pyx_t_9;
       goto __pyx_L1_error;
     }
     __pyx_L4_return: {
-      __pyx_t_17 = __pyx_r;
+      __pyx_t_15 = __pyx_r;
       __pyx_r = 0;
       free(__pyx_v_result_bytes);
-      __pyx_r = __pyx_t_17;
-      __pyx_t_17 = 0;
+      __pyx_r = __pyx_t_15;
+      __pyx_t_15 = 0;
       goto __pyx_L0;
     }
   }
@@ -17799,15 +17780,13 @@ static PyObject *__pyx_pf_5pydub_6sample_convert_24bit_to_32bit(CYTHON_UNUSED Py
  * 
  * @cython.boundscheck(False)             # <<<<<<<<<<<<<<
  * @cython.wraparound(False)
- * def convert_24bit_to_32bit(unsigned char[:] data):
+ * def convert_24bit_to_32bit(const unsigned char[:] data):
  */
 
   /* function exit code */
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_9);
-  __Pyx_XDECREF(__pyx_t_10);
   __Pyx_AddTraceback("pydub.sample.convert_24bit_to_32bit", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __pyx_r = NULL;
   __pyx_L0:;
@@ -18782,7 +18761,6 @@ static int __Pyx_CreateStringTabAndInitStrings(void) {
     {&__pyx_n_s_ASCII, __pyx_k_ASCII, sizeof(__pyx_k_ASCII), 0, 0, 1, 1},
     {&__pyx_kp_s_All_dimensions_preceding_dimensi, __pyx_k_All_dimensions_preceding_dimensi, sizeof(__pyx_k_All_dimensions_preceding_dimensi), 0, 0, 1, 0},
     {&__pyx_n_s_AssertionError, __pyx_k_AssertionError, sizeof(__pyx_k_AssertionError), 0, 0, 1, 1},
-    {&__pyx_n_u_B, __pyx_k_B, sizeof(__pyx_k_B), 0, 1, 0, 1},
     {&__pyx_kp_s_Buffer_view_does_not_expose_stri, __pyx_k_Buffer_view_does_not_expose_stri, sizeof(__pyx_k_Buffer_view_does_not_expose_stri), 0, 0, 1, 0},
     {&__pyx_kp_s_Can_only_create_a_buffer_that_is, __pyx_k_Can_only_create_a_buffer_that_is, sizeof(__pyx_k_Can_only_create_a_buffer_that_is), 0, 0, 1, 0},
     {&__pyx_kp_s_Cannot_assign_to_read_only_memor, __pyx_k_Cannot_assign_to_read_only_memor, sizeof(__pyx_k_Cannot_assign_to_read_only_memor), 0, 0, 1, 0},
@@ -19089,7 +19067,7 @@ static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
  * 
  * @cython.boundscheck(False)             # <<<<<<<<<<<<<<
  * @cython.wraparound(False)
- * def convert_24bit_to_32bit(unsigned char[:] data):
+ * def convert_24bit_to_32bit(const unsigned char[:] data):
  */
   __pyx_tuple__21 = PyTuple_Pack(9, __pyx_n_s_data, __pyx_n_s_i, __pyx_n_s_p, __pyx_n_s_len_data, __pyx_n_s_len_result, __pyx_n_s_b0, __pyx_n_s_b1, __pyx_n_s_b2, __pyx_n_s_result_bytes); if (unlikely(!__pyx_tuple__21)) __PYX_ERR(0, 7, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__21);
@@ -20160,7 +20138,7 @@ if (!__Pyx_RefNanny) {
  * 
  * @cython.boundscheck(False)             # <<<<<<<<<<<<<<
  * @cython.wraparound(False)
- * def convert_24bit_to_32bit(unsigned char[:] data):
+ * def convert_24bit_to_32bit(const unsigned char[:] data):
  */
   __pyx_t_7 = __Pyx_CyFunction_New(&__pyx_mdef_5pydub_6sample_1convert_24bit_to_32bit, 0, __pyx_n_s_convert_24bit_to_32bit, NULL, __pyx_n_s_pydub_sample, __pyx_d, ((PyObject *)__pyx_codeobj__22)); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 7, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
@@ -20605,11 +20583,11 @@ static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyO
     {
         int eq = __Pyx_PyUnicode_Equals(s, PyTuple_GET_ITEM(kwnames, i), Py_EQ);
         if (unlikely(eq != 0)) {
-            if (unlikely(eq < 0)) return NULL;  // error
+            if (unlikely(eq < 0)) return NULL;
             return kwvalues[i];
         }
     }
-    return NULL;  // not found (no exception set)
+    return NULL;
 }
 #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030d0000
 CYTHON_UNUSED static PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues) {
@@ -20722,7 +20700,7 @@ static int __Pyx_ParseOptionalKeywords(
         if (*name) {
             values[name-argnames] = value;
 #if CYTHON_AVOID_BORROWED_REFS
-            Py_INCREF(value); // transfer ownership of value to values
+            Py_INCREF(value);
             Py_DECREF(key);
 #endif
             key = NULL;
@@ -20741,7 +20719,7 @@ static int __Pyx_ParseOptionalKeywords(
                         && _PyString_Eq(**name, key)) {
                     values[name-argnames] = value;
 #if CYTHON_AVOID_BORROWED_REFS
-                    value = NULL;  // ownership transferred to values
+                    value = NULL;
 #endif
                     break;
                 }
@@ -20773,7 +20751,7 @@ static int __Pyx_ParseOptionalKeywords(
                 if (cmp == 0) {
                     values[name-argnames] = value;
 #if CYTHON_AVOID_BORROWED_REFS
-                    value = NULL; // ownership transferred to values
+                    value = NULL;
 #endif
                     break;
                 }
@@ -24266,7 +24244,7 @@ static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS(PyObject *func,
     default:
         return NULL;
     }
-    return ((_PyCFunctionFastWithKeywords)(void(*)(void))def->ml_meth)(self, args, nargs, kwnames);
+    return ((__Pyx_PyCFunctionFastWithKeywords)(void(*)(void))def->ml_meth)(self, args, nargs, kwnames);
 }
 static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
 {
@@ -24725,7 +24703,7 @@ static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
     #else
     py_code = PyCode_NewEmpty(filename, funcname, py_line);
     #endif
-    Py_XDECREF(py_funcname);  // XDECREF since it's only set on Py3 if cline
+    Py_XDECREF(py_funcname);
     return py_code;
 bad:
     Py_XDECREF(py_funcname);
@@ -25604,7 +25582,7 @@ static int __Pyx_ValidateAndInit_memviewslice(
 }
 
 /* ObjectToMemviewSlice */
-  static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_ds_unsigned_char(PyObject *obj, int writable_flag) {
+  static CYTHON_INLINE __Pyx_memviewslice __Pyx_PyObject_to_MemoryviewSlice_ds_unsigned_char__const__(PyObject *obj, int writable_flag) {
     __Pyx_memviewslice result = { 0, 0, { 0 }, { 0 }, { 0 } };
     __Pyx_BufFmt_StackElem stack[1];
     int axes_specs[] = { (__Pyx_MEMVIEW_DIRECT | __Pyx_MEMVIEW_STRIDED) };
@@ -25615,7 +25593,7 @@ static int __Pyx_ValidateAndInit_memviewslice(
     }
     retcode = __Pyx_ValidateAndInit_memviewslice(axes_specs, 0,
                                                  PyBUF_RECORDS_RO | writable_flag, 1,
-                                                 &__Pyx_TypeInfo_unsigned_char, stack,
+                                                 &__Pyx_TypeInfo_unsigned_char__const__, stack,
                                                  &result, obj);
     if (unlikely(retcode == -1))
         goto __pyx_fail;
@@ -25626,6 +25604,11 @@ static int __Pyx_ValidateAndInit_memviewslice(
     return result;
 }
 
+/* MemviewDtypeToObject */
+  static CYTHON_INLINE PyObject *__pyx_memview_get_unsigned_char__const__(const char *itemp) {
+    return (PyObject *) __Pyx_PyInt_From_unsigned_char(*(unsigned char const  *) itemp);
+}
+
 /* CIntFromPyVerify */
   #define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
     __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
@@ -25648,18 +25631,6 @@ static int __Pyx_ValidateAndInit_memviewslice(
         return (target_type) value;\
     }
 
-/* MemviewDtypeToObject */
-  static CYTHON_INLINE PyObject *__pyx_memview_get_unsigned_char(const char *itemp) {
-    return (PyObject *) __Pyx_PyInt_From_unsigned_char(*(unsigned char *) itemp);
-}
-static CYTHON_INLINE int __pyx_memview_set_unsigned_char(const char *itemp, PyObject *obj) {
-    unsigned char value = __Pyx_PyInt_As_unsigned_char(obj);
-    if (unlikely((value == (unsigned char)-1) && PyErr_Occurred()))
-        return 0;
-    *(unsigned char *) itemp = value;
-    return 1;
-}
-
 /* MemviewSliceCopyTemplate */
   static __Pyx_memviewslice
 __pyx_memoryview_copy_new_contig(const __Pyx_memviewslice *from_mvs,
@@ -25926,279 +25897,6 @@ static CYTHON_INLINE void __Pyx_XCLEAR_MEMVIEW(__Pyx_memviewslice *memslice,
     }
 }
 
-/* CIntFromPy */
-  static CYTHON_INLINE unsigned char __Pyx_PyInt_As_unsigned_char(PyObject *x) {
-#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wconversion"
-#endif
-    const unsigned char neg_one = (unsigned char) -1, const_zero = (unsigned char) 0;
-#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
-#pragma GCC diagnostic pop
-#endif
-    const int is_unsigned = neg_one > const_zero;
-#if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_Check(x))) {
-        if ((sizeof(unsigned char) < sizeof(long))) {
-            __PYX_VERIFY_RETURN_INT(unsigned char, long, PyInt_AS_LONG(x))
-        } else {
-            long val = PyInt_AS_LONG(x);
-            if (is_unsigned && unlikely(val < 0)) {
-                goto raise_neg_overflow;
-            }
-            return (unsigned char) val;
-        }
-    } else
-#endif
-    if (likely(PyLong_Check(x))) {
-        if (is_unsigned) {
-#if CYTHON_USE_PYLONG_INTERNALS
-            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
-                goto raise_neg_overflow;
-            } else if (__Pyx_PyLong_IsCompact(x)) {
-                __PYX_VERIFY_RETURN_INT(unsigned char, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
-            } else {
-                const digit* digits = __Pyx_PyLong_Digits(x);
-                assert(__Pyx_PyLong_DigitCount(x) > 1);
-                switch (__Pyx_PyLong_DigitCount(x)) {
-                    case 2:
-                        if ((8 * sizeof(unsigned char) > 1 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) >= 2 * PyLong_SHIFT)) {
-                                return (unsigned char) (((((unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0]));
-                            }
-                        }
-                        break;
-                    case 3:
-                        if ((8 * sizeof(unsigned char) > 2 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) >= 3 * PyLong_SHIFT)) {
-                                return (unsigned char) (((((((unsigned char)digits[2]) << PyLong_SHIFT) | (unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0]));
-                            }
-                        }
-                        break;
-                    case 4:
-                        if ((8 * sizeof(unsigned char) > 3 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) >= 4 * PyLong_SHIFT)) {
-                                return (unsigned char) (((((((((unsigned char)digits[3]) << PyLong_SHIFT) | (unsigned char)digits[2]) << PyLong_SHIFT) | (unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0]));
-                            }
-                        }
-                        break;
-                }
-            }
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
-            if (unlikely(Py_SIZE(x) < 0)) {
-                goto raise_neg_overflow;
-            }
-#else
-            {
-                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                if (unlikely(result < 0))
-                    return (unsigned char) -1;
-                if (unlikely(result == 1))
-                    goto raise_neg_overflow;
-            }
-#endif
-            if ((sizeof(unsigned char) <= sizeof(unsigned long))) {
-                __PYX_VERIFY_RETURN_INT_EXC(unsigned char, unsigned long, PyLong_AsUnsignedLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if ((sizeof(unsigned char) <= sizeof(unsigned PY_LONG_LONG))) {
-                __PYX_VERIFY_RETURN_INT_EXC(unsigned char, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
-#endif
-            }
-        } else {
-#if CYTHON_USE_PYLONG_INTERNALS
-            if (__Pyx_PyLong_IsCompact(x)) {
-                __PYX_VERIFY_RETURN_INT(unsigned char, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
-            } else {
-                const digit* digits = __Pyx_PyLong_Digits(x);
-                assert(__Pyx_PyLong_DigitCount(x) > 1);
-                switch (__Pyx_PyLong_SignedDigitCount(x)) {
-                    case -2:
-                        if ((8 * sizeof(unsigned char) - 1 > 1 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) - 1 > 2 * PyLong_SHIFT)) {
-                                return (unsigned char) (((unsigned char)-1)*(((((unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0])));
-                            }
-                        }
-                        break;
-                    case 2:
-                        if ((8 * sizeof(unsigned char) > 1 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) - 1 > 2 * PyLong_SHIFT)) {
-                                return (unsigned char) ((((((unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0])));
-                            }
-                        }
-                        break;
-                    case -3:
-                        if ((8 * sizeof(unsigned char) - 1 > 2 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) - 1 > 3 * PyLong_SHIFT)) {
-                                return (unsigned char) (((unsigned char)-1)*(((((((unsigned char)digits[2]) << PyLong_SHIFT) | (unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0])));
-                            }
-                        }
-                        break;
-                    case 3:
-                        if ((8 * sizeof(unsigned char) > 2 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) - 1 > 3 * PyLong_SHIFT)) {
-                                return (unsigned char) ((((((((unsigned char)digits[2]) << PyLong_SHIFT) | (unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0])));
-                            }
-                        }
-                        break;
-                    case -4:
-                        if ((8 * sizeof(unsigned char) - 1 > 3 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) - 1 > 4 * PyLong_SHIFT)) {
-                                return (unsigned char) (((unsigned char)-1)*(((((((((unsigned char)digits[3]) << PyLong_SHIFT) | (unsigned char)digits[2]) << PyLong_SHIFT) | (unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0])));
-                            }
-                        }
-                        break;
-                    case 4:
-                        if ((8 * sizeof(unsigned char) > 3 * PyLong_SHIFT)) {
-                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
-                                __PYX_VERIFY_RETURN_INT(unsigned char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                            } else if ((8 * sizeof(unsigned char) - 1 > 4 * PyLong_SHIFT)) {
-                                return (unsigned char) ((((((((((unsigned char)digits[3]) << PyLong_SHIFT) | (unsigned char)digits[2]) << PyLong_SHIFT) | (unsigned char)digits[1]) << PyLong_SHIFT) | (unsigned char)digits[0])));
-                            }
-                        }
-                        break;
-                }
-            }
-#endif
-            if ((sizeof(unsigned char) <= sizeof(long))) {
-                __PYX_VERIFY_RETURN_INT_EXC(unsigned char, long, PyLong_AsLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if ((sizeof(unsigned char) <= sizeof(PY_LONG_LONG))) {
-                __PYX_VERIFY_RETURN_INT_EXC(unsigned char, PY_LONG_LONG, PyLong_AsLongLong(x))
-#endif
-            }
-        }
-        {
-            unsigned char val;
-            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
-#if PY_MAJOR_VERSION < 3
-            if (likely(v) && !PyLong_Check(v)) {
-                PyObject *tmp = v;
-                v = PyNumber_Long(tmp);
-                Py_DECREF(tmp);
-            }
-#endif
-            if (likely(v)) {
-                int ret = -1;
-#if PY_VERSION_HEX < 0x030d0000 && !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
-                int one = 1; int is_little = (int)*(unsigned char *)&one;
-                unsigned char *bytes = (unsigned char *)&val;
-                ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                           bytes, sizeof(val),
-                                           is_little, !is_unsigned);
-#else
-                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
-                int bits, remaining_bits, is_negative = 0;
-                long idigit;
-                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
-                if (unlikely(!PyLong_CheckExact(v))) {
-                    PyObject *tmp = v;
-                    v = PyNumber_Long(v);
-                    assert(PyLong_CheckExact(v));
-                    Py_DECREF(tmp);
-                    if (unlikely(!v)) return (unsigned char) -1;
-                }
-#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
-                if (Py_SIZE(x) == 0)
-                    return (unsigned char) 0;
-                is_negative = Py_SIZE(x) < 0;
-#else
-                {
-                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                    if (unlikely(result < 0))
-                        return (unsigned char) -1;
-                    is_negative = result == 1;
-                }
-#endif
-                if (is_unsigned && unlikely(is_negative)) {
-                    goto raise_neg_overflow;
-                } else if (is_negative) {
-                    stepval = PyNumber_Invert(v);
-                    if (unlikely(!stepval))
-                        return (unsigned char) -1;
-                } else {
-                    stepval = __Pyx_NewRef(v);
-                }
-                val = (unsigned char) 0;
-                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
-                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
-                for (bits = 0; bits < (int) sizeof(unsigned char) * 8 - chunk_size; bits += chunk_size) {
-                    PyObject *tmp, *digit;
-                    digit = PyNumber_And(stepval, mask);
-                    if (unlikely(!digit)) goto done;
-                    idigit = PyLong_AsLong(digit);
-                    Py_DECREF(digit);
-                    if (unlikely(idigit < 0)) goto done;
-                    tmp = PyNumber_Rshift(stepval, shift);
-                    if (unlikely(!tmp)) goto done;
-                    Py_DECREF(stepval); stepval = tmp;
-                    val |= ((unsigned char) idigit) << bits;
-                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
-                    if (Py_SIZE(stepval) == 0)
-                        goto unpacking_done;
-                    #endif
-                }
-                idigit = PyLong_AsLong(stepval);
-                if (unlikely(idigit < 0)) goto done;
-                remaining_bits = ((int) sizeof(unsigned char) * 8) - bits - (is_unsigned ? 0 : 1);
-                if (unlikely(idigit >= (1L << remaining_bits)))
-                    goto raise_overflow;
-                val |= ((unsigned char) idigit) << bits;
-            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
-            unpacking_done:
-            #endif
-                if (!is_unsigned) {
-                    if (unlikely(val & (((unsigned char) 1) << (sizeof(unsigned char) * 8 - 1))))
-                        goto raise_overflow;
-                    if (is_negative)
-                        val = ~val;
-                }
-                ret = 0;
-            done:
-                Py_XDECREF(shift);
-                Py_XDECREF(mask);
-                Py_XDECREF(stepval);
-#endif
-                Py_DECREF(v);
-                if (likely(!ret))
-                    return val;
-            }
-            return (unsigned char) -1;
-        }
-    } else {
-        unsigned char val;
-        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (unsigned char) -1;
-        val = __Pyx_PyInt_As_unsigned_char(tmp);
-        Py_DECREF(tmp);
-        return val;
-    }
-raise_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to unsigned char");
-    return (unsigned char) -1;
-raise_neg_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to unsigned char");
-    return (unsigned char) -1;
-}
-
 /* CIntFromPy */
   static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
 #ifdef __Pyx_HAS_GCC_DIAGNOSTIC
diff --git a/pydub/sample.pyx b/pydub/sample.pyx
index 95dc0793..903d00b8 100644
--- a/pydub/sample.pyx
+++ b/pydub/sample.pyx
@@ -6,7 +6,7 @@ from libc.stdlib cimport free, malloc
 
 @cython.boundscheck(False)
 @cython.wraparound(False)
-def convert_24bit_to_32bit(unsigned char[:] data):
+def convert_24bit_to_32bit(const unsigned char[:] data):
     cdef int i
     cdef int p = 0
     cdef int len_data = data.size
@@ -30,6 +30,6 @@ def convert_24bit_to_32bit(unsigned char[:] data):
 
             p += 4
 
-        return array.array("B", result_bytes[:len_result])
+        return bytes(result_bytes[:len_result])
     finally:
         free(result_bytes)
diff --git a/pyproject.toml b/pyproject.toml
index f0573019..035f1c6d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,6 +27,7 @@ python = ">=3.11,<4.0"
 
 [tool.poetry.group.dev.dependencies]
 pre-commit = "^3.6.0"
+memray = "^1.13.4"
 
 [tool.poetry.build]
 generate-setup-file = false