irungentoo / filter_audio Goto Github PK

Hi,
I tried to use noise suppression to clear some noise. It seems well that much noise can be suppressed. But real people voice will be reduced and people voice sounds not clear and low.

So I have to use 'agc' to normalize it. But It sound worse. Any idea for it? Is the parameter not right in your codes below?

        gain_config.targetLevelDbfs = 1;
    gain_config.compressionGaindB = 50;
    gain_config.limiterEnable = kAgcTrue;


    if (WebRtcAgc_Init(agcInst, 0, 255, kAgcModeAdaptiveDigital, 16000) == -1 || WebRtcAgc_set_config(agcInst, gain_config) == -1) {
        fprintf(stderr, "Could not WebRtcAgc_Init\n");
    }

Thanks a lot for your answer.

Best,
John

Hi,
I'm trying to implement filter_audio into qTox.
Something is wrong with the app's stack. After the programm had called the procedure filter_audio 10-500 times, the trace stack of the application became overwritten.

First I tried to compile all c-files into libfilteraudio.so -- this was no problem. Linking to this file also was no problem the problem was ... (see above).

Then I turned all *.c files into *.cpp files added -fpermissive to the gcc params. This did not solve the problem.

I also updated gcc to v4.9.2 -- same behavior.

What's wrong?
Is it a bug of gcc or a bug in the code? Or is it a bug in the C++-wrapper?

Relevant Code:

https://gist.github.com/mwuttke97/0301e440af68a8df3420

Output:

https://gist.github.com/mwuttke97/6fed0f4cbe7c4197e052

To build the test program (you need openal)................

where's Openal ????
What is the complete name of the software ？？？

As per this notsecure/uTox#844 (comment)
But this doesn't really mean it's libfilteraudio's fault, maybe it is still uTox's fault somehow(in the way it's loading the lib?) and it's only caught in libfilteraudio because of the hardened stuff... no idea really.

Thanks.

Downstream distributions need these releases to make stable packages.
It is sufficient to give a version number like 0.0.1 .
Thank you~

Hello,

I`m currently writing a .net wrapper for your lib, because I would like to use it in a dotnet based application on Linux.

At the moment I got stuck at WebRtcNs_Process... can anyone give me a hint how to split the wave-frame from the mic into H- and L-band (and of course merge the filtered results).

Thank you very much for your help

Carl

I have recorded a video about this issue, it should be self explanatory.

Windows 8.1, most recent version of uTox.

Hello. I am searching for a way to filter noise of laptop fan from my microphone input.
Does this library doing it? or just echo cancellation?

I am not C/C++ dev, but want to use this lib to filter a pipe stream, like:
arecord -f cd -t wav | ./filter_stream | mplayer -
How is hard to change the test program to act like this? Does it use some buffers? I want to understand, if I will be able to do that or search for another way...
thanks

This needs to be distributed with the source code to create package.
maybe like this file https://github.com/svn2github/webrtc/blob/master/webrtc/LICENSE

memset tries to write twice the bytes of the actual buffer size

A/libc: FORTIFY: memset: prevented 640-byte write into 320-byte buffer

should say:

memset(temp, 0, nsx_samples*sizeof(int16_t)); 

thanks to @kaefert for helping me find this

i didnt see where the function pass_audio_output to implenment? can u tell me how to use the pass_audio_output fuction to implenment in playback_mic.c

thanks

As we all know, today more than ever before, it is crucial to be able to trust our computing environments. One of the main difficulties that package maintainers of Linux distributions face, is the difficulty to verify the authenticity and the integrity of the source code.

The Arch Linux team would appreciate it if you would provide us GPG signatures in order to verify easily and quickly of your source code releases.

Overview of the required tasks:

• Create and/or use a 4096-bit RSA keypair for the file signing
• The key may be used for email encryption too
• Keep your key secret, use a strong unique passphrase for the key
• Upload the public key to a key server
• Sign every new commit by default
• Sign new tags
• Verify the Github Release tarball download against your local source
• Sign Github Release tarballs

Additional Information:

• https://github.com/NicoHood/NicoHood.github.io/wiki/How-to-sign-sources-with-GPG-in-under-5-minutes
• https://help.github.com/categories/gpg/
• https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work
• https://www.qubes-os.org/doc/verifying-signatures/
• https://developers.google.com/web/fundamentals/security/encrypt-in-transit/why-https

Thanks.

I run into following error while trying to compile filter_audio on windows:

make install
LD    libfilteraudio.dll
Can't open .lib file:
collect2.exe: error: ld returned 1 exit status
make: *** [libfilteraudio.dll] Error 1

Strange is, that the error doesn't show which .lib file couldn't be opened.

Compiler is gcc 4.8.1, mingw32