High-level noise and sound deformation with libao4 on debian-ppc
First filed at: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=588901
After upgrading mpg321 from version 0.2.10.6 which uses libao2 to version 0.2.12-1 which uses libao4, I started having the following problems when playing a mp3 file:
- high-level noise in the background
- sound deformation especially on voices. I first filled a bug report for mpg321 (bug number 588531) where I have attached a mp3 file which corresponds to the output sound of my system (having mpg321 write a wav file then I converted it to mp3) (http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=Sample_output_mpg321.mp3;att=1;bug=588531) If you listen to the mp3 file, you will be able to hear the problems. However, after a discussion with the mpg321 maintainer and a few tests (he sent me a short code using libao to play a wav file), we identified that the problem came from libao4. Wav files play just fine when the code is compiled against libao2 but the problems I have described appear when it is compiled against libao4.
This problem only occurs on the debian-ppc version (it works fine on my amd64 debian desktop). If that seems relevant, could you merge the previously filled bug report for mpg321 (588531) with this new one?
Please tell me if you would need more information. Best regards.