audio file（16kHz)
LibriSpeech ASR corpus
http://www.openslr.org/12
1221-135766-0000.wav
texts
#librispeech_pretrained_v2
how strange it seemed to the sad woman as she watched the growth and the beauty that became every day more brilliant and the intelligence that through its quivering sunshine over the tiny features of this child
#an4_pretrained_v2
sthiee sixtysx s one cs one stwp teoh ten teny kwenth three t four eineaieteen twonr two seven te ine thine shirn i np twe tseiox sven sie
#ted_pretrained_v2
howstrange at seemed to the sad woman she wachd the grolt han the beauty that became every day more brilliant and the intelligence that through its equivering sunching over the tiny peacturs of this child
File input
$ python3 deepspeech2.py -i 1221-135766-0000.wav -s output.txtMic input
$ python3 deepspeech2.py -V- speak into the microphone when "Please speak something."
- end the recording after about 1 second of silence and do voice recognition
- return to 1 again after displaying the forecast results
- type
Ctrl+cif you want to exit
With the -d option, decode the recognition results in BeamDecoder using the language model. With the -a option, you can use other trained models.
Mac OS:
brew install portaudio
pip install pyaudio
Linux:
sudo apt-get install portaudio19-dev
pip install pyaudio
This module is required to perform Beam Decode using the language model.
git clone --recursive https://github.com/parlance/ctcdecode.git
cd ctcdecode && pip install .
PyTorch
ONNX opset = 10
an4_pretrained_v2.onnx.prototxt