70 lines
2.2 KiB
Markdown
70 lines
2.2 KiB
Markdown
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# RNNoise is a noise suppression library based on a recurrent neural network
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## Quick Demo application
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While it is meant to be used as a library, a simple command-line tool is
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provided as an example.
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### build librnnoise & rnnoise_demo with CMake
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```shell
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# mkdir build
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# cd build
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# cmake ..
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# make
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```
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It operates on wav and mp3 files, which can be used as:
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```shell
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# ./rnnoise_demo input.wav
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# ./rnnoise_demo input.mp3
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```
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the output filename is "input_out.wav"
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or:
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specify the output filename
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```shell
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# ./rnnoise_demo input.wav output.wav
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# ./rnnoise_demo input.mp3 output.wav
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```
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## Training Process
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### Audio feature extract
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Build audio feature extraction tool
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```shell
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# cd src
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# ./train_compile.sh
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```
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Use generated "denoise_training" to get the audio feature array from speech & noise audio clip
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```shell
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# ./denoise_training
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usage: ./denoise_training <speech> <noise> <sample count> <output denoised>
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# ./denoise_training speech.wav noise.wav 50000 feature.dat
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matrix size: 50000 x 87
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```
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### RNN model traning
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Pick feature array to "training" dir and go through the training process
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```shell
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# cd training
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# mv ../src/feature.dat .
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# python bin2hdf5.py --bin_file feature.dat --matrix_shape 50000x87
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# python rnn_train.py
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# python dump_rnn.py
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```
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Training process will generate the RNN model weight code file (default is rnn_data.c) and layer definition header file (default is rnn_data.h). They can be used to refresh the "src/rnn_data.c", "src/rnn_data.h" and rebuild the rnnoise lib & demo app.
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# References and Resources:
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- [david8862/rnnoise](https://github.com/david8862/rnnoise)
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- [RNNoise: Learning Noise Suppression](https://people.xiph.org/~jm/demo/rnnoise/)
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- [RNNoise: Learning Noise Suppression（深度学习噪声抑制）](https://blog.csdn.net/dakeboy/article/details/88039977)
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- [基于RNN的音频降噪算法](https://cloud.tencent.com/developer/article/1094567)
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# Donating
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If you found this project useful, consider buying me a coffee
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<a href="https://img2018.cnblogs.com/blog/824862/201809/824862-20180930223603138-1708589189.png" target="_blank"><img src="https://www.buymeacoffee.com/assets/img/custom_images/black_img.png" alt="Buy Me A Coffee" style="height: auto !important;width: auto !important;" ></a>
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