[gstreamer-bugs] [Bug 426976] New: muddy sound on some mp3s

GStreamer (bugzilla.gnome.org) bugzilla-daemon at bugzilla.gnome.org
Fri Apr 6 09:20:39 PDT 2007

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  GStreamer | don't know | Ver: 0.10.10
           Summary: muddy sound on some mp3s
           Product: GStreamer
           Version: 0.10.10
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: mccorkle at devteam.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.15/2.16
   GNOME milestone: Unspecified

Please describe the problem:
Listen to Star Salzman's remix of Chrono Trigger's "Black Wind Rising" from
ocremix.org (or email me and I'll provide the mp3).  At around 1:00 - 1:09 and
again at 1:20 - 1:35 there is an obvious "muddy" sound coming both out of my
speakers (USBed in Logitech Z-10s) and out of their built in earphone port if I
plug in my standard Sony earbuds.

I loaded the same mp3 into xmms and played it back with no muddy sound.  With
that said, I can see (and hear) a little bit of clipping during the same area
in xmms (via the little spectrum analyzer it comes with).

Steps to reproduce:
1. download the same mp3 from ocremix.org
2. Play it raw via  
gst-launch-0.10 playbin
3. listen for the first minute or two with good speakers of earphones.  

Actual results:
You will just hear a muddy underlying sound

Expected results:
The same output that I get from xmms on this laptop.

Does this happen every time?

Other information:
My first report was at songbird:

I am using a Sony Vaio PCG-7A2L with a set of Logitech z-10 USB speakers and a
Intel sound chip on board.  The muddiness happens both with the sound device on
board and with the sound device built into the speakers.

LSPCI for my internal sound card:
00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
High Definition Audio Controller (rev 03)

If you guys can't reproduce it there, I will attach my line-out to a line in on
another machine and send you a FLAC or WAV of what I hear.  


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