Bug for supporting sample rate more than 16000hz.

[jagger2048]

In fact this project's implement only support 8khz, 16khz sample

In the official implement, in order to support 32khz and 48khz, the input signal should be processed by a splitting filter and generate two bands or three bands signal, then applying noise suppression and synthesis back to one bank signal. I have review the codes and cannot find the related functions.

It‘’s a bug that this project don't contain these processing. In #1 , modfiy WebRtcNs_InitCore function is useless .

[cpuimage]

In fact this project's implement only support 8khz, 16khz sample

In the official implement, in order to support 32khz and 48khz, the input signal should be processed by a splitting filter and generate two bands or three bands signal, then applying noise suppression and synthesis back to one bank signal. I have review the codes and cannot find the related functions.

It‘’s a bug that this project don't contain these processing. In #1 , modfiy WebRtcNs_InitCore function is useless .

非常好，这个问题当时确实没细看，有心了。
近期一直很忙，没什么时间维护了。
回头再重新梳理一下。

[Windstudent]

感谢您的分享。
大致读了一下您的代码，想请教您一下，原始的WebRTC中的语音估计器中，利用的就是prior SNR- based Wiener Filter 吗？还是您改进后的结果？

[cpuimage]

@Windstudent 原始就是如此,没有修改.

[ruiyq]

In fact this project's implement only support 8khz, 16khz sample

In the official implement, in order to support 32khz and 48khz, the input signal should be processed by a splitting filter and generate two bands or three bands signal, then applying noise suppression and synthesis back to one bank signal. I have review the codes and cannot find the related functions.

It‘’s a bug that this project don't contain these processing. In #1 , modfiy WebRtcNs_InitCore function is useless .

You can modify the Line 765 like below in the noise_suppression.c
if (fs == 8000 || fs == 16000 || fs == 32000 || fs == 48000)

Then it can support 32kHz and 48kHz and can do noise suprression.
Please see https://github.com/HackWebRTC/webrtc/blob/hack_webrtc/modules/audio_processing/legacy_ns/ns_core.c (WebRtcNs_InitCore())

[cpuimage]

NS采样率不阉割版本 ，可移步至仓库:
WebRTC_NS_CPP