GNOME Bugzilla – Bug 349719
[mad] Intermittent clicks & pops for VBR & CBR (@ 320kbps) mp3
Last modified: 2006-08-18 14:37:31 UTC
No matter the media player (I have tried Quod Libet, Rhythmbox, Totem, Xine, Banshee, Mplayer, etc), certain mp3 files encoded at VBR or at CBR 320kbps will playback with intermittent clicking & popping sounds. The quality of the mp3s is assured: they are ripped to the Uberstandard (http://www.ubernet.org/?p=UberStandard), and play without clicks & pops through foobar2000 & Winamp in Windows. If it matters, I am using ALSA, within Ubuntu 6.06.
Do you have the fluendo mp3 plugin installed? (gstreamer0.10-fluendo-mp3)
Hello, I have created a bug 350723 "[mad] Wrong output buffer timestamping" with a patch. I am not sure if these bugs are duplicate or not. Please could you retest with our patch applied?
can you also attach a small sample file?
Jan Schmidt: yes, I have the fluendo plugin installed. Wim Taymans: See below for URL to a sample file. In this case, it is ripped by EAC, and encoded with LAME 3.90.3 using --alt-preset-standard (giving VBR). The entire song is present. I apologise for the questionable legality of this, but I feel the problem is too sporadic and sparsely present within the mp3 file to provide only one small part. Playing it by ear, I can detect unusual clicks and squeaks at these time intervals: 0.00 0.08 0.09 0.12 0.19 0.38 0.39 0.41 0.45 ... and it goes on. http://users.on.net/stickley/muse-supermassive-black-hole.mp3
Hrmn, there do seem to be some single-sample errors sporadically through the file when using the C version of the Fluendo MP3 decoder (as Dapper does). For a simple fix, you can remove the fluendo decoder by removing the gstreamer0.10-fluendo-mp3 package, and install the MAD based decoder (gstreamer0.10-plugins-ugly) instead.
I just fixed this in subversion for the Fluendo MP3 plugin.