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Bug#799176: marked as done (libspeexdsp1: Severe clipping of audio when libspeex resampler is used by ALSA or pulse audio)

Your message dated Thu, 14 Apr 2022 20:53:37 -0400
with message-id <cb483da6a670c6f6cb52c4d0575fe0582e9872e9.camel@debian.org>
and subject line Re: libspeexdsp1: Severe clipping of audio when libspeex resampler is used by ALSA or pulse audio
has caused the Debian Bug report #799176,
regarding libspeexdsp1: Severe clipping of audio when libspeex resampler is used by ALSA or pulse audio
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
799176: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799176
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: libspeexdsp1
Version: 1.2~rc1.2-1
Severity: grave
Tags: fixed-upstream
Justification: causes non-serious data loss

On my armhf-systems (Raspberry Pi 2), the resampler library in libspeexdsp1 is introducing extreme 
distortion / clipping unless the input stream is strongly attenuated.

I've done some additional tests confirming that:
 - The bug also exists upstream
 - The bug is corrected in latest upstream (upstream change log mentions correcting a clipping/overflow error)

Additional tests:
- Rebuild of libspeexdsp.so.1.5.0 - Clipping/Distortion
- Rebuild of libspeexdsp.so.1.5.0, without debian patches in the resampler - Clipping/Distortion
- Rebuild of libspeexdsp.so.1.5.0, but resampler.c updated to match latest speex release - Clean audio!!

Some discussion also here:
https://discuss.mopidy.com/t/severe-clipping-of-audio-when-using-alsa/878

Note1: This is my first time writing a debian bug report. Please change fields as necessary
Note2: The libspeexdsp is default for both ALSA and pulse audio, this issue thus has a big impact on overall 
useability of the system for any multimedia or audio related tasks.

-- System Information:
Debian Release: 8.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: armhf

Kernel: Linux 4.1.3-2-osmc (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

--- End Message ---
--- Begin Message --- 
Version: 1.2.0-1

I believe this bug is fixed with latest unpatched speexdsp upload.

Thanks,
Boyuan Yang

On Wed, 16 Sep 2015 16:38:36 +0200 Erik <erik@montnemery.com> wrote:
> Package: libspeexdsp1
> Version: 1.2~rc1.2-1
> Severity: grave
> Tags: fixed-upstream
> Justification: causes non-serious data loss
> 
> On my armhf-systems (Raspberry Pi 2), the resampler library in libspeexdsp1
is introducing extreme 
> distortion / clipping unless the input stream is strongly attenuated.
> 
> I've done some additional tests confirming that:
>  - The bug also exists upstream
>  - The bug is corrected in latest upstream (upstream change log mentions
correcting a clipping/overflow error)
> 
> Additional tests:
> - Rebuild of libspeexdsp.so.1.5.0 - Clipping/Distortion
> - Rebuild of libspeexdsp.so.1.5.0, without debian patches in the resampler -
Clipping/Distortion
> - Rebuild of libspeexdsp.so.1.5.0, but resampler.c updated to match latest
speex release - Clean audio!!
> 
> Some discussion also here:
> https://discuss.mopidy.com/t/severe-clipping-of-audio-when-using-alsa/878
> 
> Note1: This is my first time writing a debian bug report. Please change
fields as necessary
> Note2: The libspeexdsp is default for both ALSA and pulse audio, this issue
thus has a big impact on overall 
> useability of the system for any multimedia or audio related tasks.
> 
> -- System Information:
> Debian Release: 8.2
>   APT prefers stable-updates
>   APT policy: (500, 'stable-updates'), (500, 'stable')
> Architecture: armhf
> 
> Kernel: Linux 4.1.3-2-osmc (SMP w/2 CPU cores)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
> 
>

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