Output files are empty when piper is been used

[rsaurav12]

I'm trying to run this in colab , output .mp3 files are empty with no audio. How can I solve this issue?

2024-12-11 13:55:29,027 - audiobook_generator.py:84 - run - INFO - Converting chapter 1/54: Annotation, characters: 507
2024-12-11 13:55:29,028 - piper_tts_provider.py:60 - text_to_speech - INFO - Running Piper TTS command: piper --model /content/voice/en_US-lessac-medium.onnx --speaker 0 --sentence_silence 0.2 --length_scale 1.0 -f /tmp/tmpdh2briv7/piper.wav --debug
DEBUG:main:Namespace(model='/content/voice/en_US-lessac-medium.onnx', config=None, output_file='/tmp/tmpdh2briv7/piper.wav', output_dir=None, output_raw=False, speaker=0, length_scale=1.0, noise_scale=None, noise_w=None, cuda=False, sentence_silence=0.2, data_dir=['/content/voice'], download_dir=None, update_voices=False, debug=True)
Traceback (most recent call last):
File "/usr/local/bin/piper", line 8, in
sys.exit(main())
File "/usr/local/lib/python3.10/dist-packages/piper/main.py", line 155, in main
voice.synthesize(text, wav_file, **synthesize_args)
File "/usr/local/lib/python3.10/dist-packages/piper/voice.py", line 95, in synthesize
for audio_bytes in self.synthesize_stream_raw(
File "/usr/local/lib/python3.10/dist-packages/piper/voice.py", line 123, in synthesize_stream_raw
yield self.synthesize_ids_to_raw(
File "/usr/local/lib/python3.10/dist-packages/piper/voice.py", line 166, in synthesize_ids_to_raw
audio = self.session.run(
File "/usr/local/lib/python3.10/dist-packages/onnxruntime/capi/onnxruntime_inference_collection.py", line 266, in run
return self._sess.run(output_names, input_feed, run_options)
onnxruntime.capi.onnxruntime_pybind11_state.InvalidArgument: [ONNXRuntimeError] : 2 : INVALID_ARGUMENT : Invalid input name: sid
2024-12-11 13:55:30,743 - piper_tts_provider.py:71 - text_to_speech - INFO - Piper TTS command completed, converting /tmp/tmpdh2briv7/piper.wav to mp3 format
2024-12-11 13:55:31,052 - piper_tts_provider.py:80 - text_to_speech - INFO - Conversion completed, output file: /content/o/0001_Annotation.mp3
2024-12-11 13:55:31,053 - audiobook_generator.py:105 - run - INFO - ✅ Converted chapter 1/54: Annotation
2024-12-11 13:55:31,053 - audiobook_generator.py:84 - run - INFO - Converting chapter 2/54: Greg_Bear_Blood_Music, characters: 21
2024-12-11 13:55:31,053 - piper_tts_provider.py:60 - text_to_speech - INFO - Running Piper TTS command: piper --model /content/voice/en_US-lessac-medium.onnx --speaker 0 --sentence_silence 0.2 --length_scale 1.0 -f /tmp/tmpk29jrb1z/piper.wav --debug
DEBUG:main:Namespace(model='/content/voice/en_US-lessac-medium.onnx', config=None, output_file='/tmp/tmpk29jrb1z/piper.wav', output_dir=None, output_raw=False, speaker=0, length_scale=1.0, noise_scale=None, noise_w=None, cuda=False, sentence_silence=0.2, data_dir=['/content/voice'], download_dir=None, update_voices=False, debug=True)

[p0n1]

Could you try with the example command and example epub file in Colab?