confused with pitch filter

xiph / rnnoise

Recurrent neural network for audio noise reduction

BSD 3-Clause "New" or "Revised" License

4.02k stars 890 forks source link

confused with pitch filter #199

Open GreenHandLW opened 2 years ago

GreenHandLW commented 2 years ago

Thanks for this great project. I am confused that it finally computes parameter r with code r[i] *= sqrt(Ex[i]/(1e-8+Ep[i])); in pitch_filter function which is not mentioned in the article <A Hybrid DSP/Deep Learning Approach to Real-Time Full-Band Speech Enhancement>.