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Hi; sorry to crosspost, but I know for a fact that gentoo-amd64 has a |
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much lower traffic than gentoo-user. |
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|
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Some weeks ago I noticed serious artifacts in the sound quality of my |
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desktop machine, when playing MP3's with Rhythmbox. It actually sounds |
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like a hardware problem; a speaker cable which is shorting, or a |
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speaker with a broken diaphragm, so at first I though my hardware was |
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broken. |
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|
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But then I noticed that mpg123 and MPlayer don't have the artifacts, |
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with the same MP3's, so then I shifted the blame to GStreamer, because |
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Totem has also the problem. Finally, I was able to locate the problem: |
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it's libmad, because madplay have the artifacts too. |
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|
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Everything that uses libmad sounds like crap, and I've recompiled the |
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library with any option that it offers, but to no avail: the artifacts |
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are still there (I can make them WORSE, with the default fixed point |
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math). I see bug reports that *seems* to be similar, but for ppc and |
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sparc, and those solutions didn't work for me. |
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|
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Other thing: if I decode the MP3 to a WAV file with madplay |
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--output=wave:file.wav, the artifacts disappear. |
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|
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Anyone has *any* idea of what can I do? I'm not using normal speakers; |
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I'm using an old stereo system, plugging the output from my sound card |
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to the video input of the stereo. But it sounds really nice if I'm not |
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using libmad. |
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|
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Any help will be *really* appreciated. |
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-- |
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Canek Peláez Valdés |
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Facultad de Ciencias, UNAM |