XMMS Distorted MP3 Sound

XMMS Distorted MP3 Sound

[Peter H.]

Hi,

In slackware10 for some time trying to play mp3 files I get a very distorted 
sound with xmms-1.2.10. Whereas in Fedora2 mp3 files do not play at all with 
xmms-1.2.10 in fact they don't enter the play list. In both the plugin for 
mpeg is enabled. Playing from MusicCDs is no problem.

As far as I can remember xmms used to play mp3 files or am I deceived, and I 
cannot tell when it exactly started

Anyhow what could be the reason? Xine, gxine, totem, mpg321 and snack all play 
mp3 files.

Thanks & regards
-- 
Peter

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Re: XMMS Distorted MP3 Sound

[Ray Olszewski]

At 03:57 PM 1/27/2005 +0800, Peter H. wrote:

>Hi,
>
>In slackware10 for some time trying to play mp3 files I get a very distorted
>sound with xmms-1.2.10. Whereas in Fedora2 mp3 files do not play at all with
>xmms-1.2.10 in fact they don't enter the play list. In both the plugin for
>mpeg is enabled. Playing from MusicCDs is no problem.
>
>As far as I can remember xmms used to play mp3 files or am I deceived, and I
>cannot tell when it exactly started
>
>Anyhow what could be the reason? Xine, gxine, totem, mpg321 and snack all 
>play
>mp3 files.

First, I can confirm that my (Debian-Sid) version of xmms ("Version: 
1.2.10-1") plays stereo MP3s just fine. I do see a problem with a mono MP3 
I made -- it plays at double speed -- but I don't imagine that's what you 
mean by "very distorted". (Anyway, I have the same problem with mono oggs, 
so it is not an MP3-specific problem, more likely a mistake in the way I'm 
recording them with gramofile.)

For the distro that doesn't play them at all, or even show them in the 
playlist (if they don't "enter the playlist", how do you even *attempt* 
actually to play them?), my first guess would be that you are mistaken in 
assuming that the mp3 plugin is properly installed. Or possibly the 
filenames use an extension that xmms does not recognise as MP3 (see if you 
have "Detect files by content (instead of file extension)" enabled in 
Preferences ->Audio I/O Plugins ->MPEG ... ->Configure).

For the distro that does play them, I'd suspect a mismatch between xmms and 
the sound driver; double check what "output" driver xmms is using (in 
Preferences-> Audio I/O Plugins) and if it is compatible with your kernel's 
sound drivers (if you are using ALSA, you might need to add some of the 
OSS-compatibility modules). You might see if other file types (ogg, even 
wav) play properly from the hard disk (not from a CD; that normally uses a 
direct connection between the CD drive and the sound card and is irrelevent 
to this diagnosis because it bypasses the kernel's sound stuff). Also 
confirm that the other playback apps, like mpg321 and xine, work on that 
distro, if you haven't already done this (I can't be sure from what you 
wrote if you did those tests with both distros or just Fedora).

If you need more help, the possibilities I've suggested should indicate the 
sort of additional information you should supply, along with a more 
descriptive characterization of the Slackware version of the symptom.




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Re: XMMS Distorted MP3 Sound

[Peter]

> At 03:57 PM 1/27/2005 +0800, Peter H. wrote:
> 
> >Hi,
> >
> >In slackware10 for some time trying to play mp3 files I get a very
> >distorted sound with xmms-1.2.10. Whereas in Fedora2 mp3 files do not play
> >at all with xmms-1.2.10 in fact they don't enter the play list. In both the
> >plugin for mpeg is enabled. Playing from MusicCDs is no problem.
> >
> >As far as I can remember xmms used to play mp3 files or am I deceived, and
> >I cannot tell when it exactly started
> >
> >Anyhow what could be the reason? Xine, gxine, totem, mpg321 and snack all 
> >play mp3 files distortion free.

On Thu, 27 Jan 2005 10:24:15 -0800
Ray Olszewski <ray@comarre.com> wrote:
> 
> For the distro that doesn't play them at all, or even show them in the 
> playlist (if they don't "enter the playlist", how do you even *attempt* 
> actually to play them?), my first guess would be that you are mistaken in 
> assuming that the mp3 plugin is properly installed. Or possibly the 
> filenames use an extension that xmms does not recognise as MP3 (see if you 
> have "Detect files by content (instead of file extension)" enabled in 
> Preferences ->Audio I/O Plugins ->MPEG ... ->Configure).

In Fedora-2 where mp3 files do not load into xmms "Configure" is disabled
when one clicks on MPEG Layer......

> For the distro that does play them, I'd suspect a mismatch between xmms and 
> the sound driver; double check what "output" driver xmms is using (in 
> Preferences-> Audio I/O Plugins) and if it is compatible with your kernel's 
> sound drivers (if you are using ALSA, you might need to add some of the 
> OSS-compatibility modules). You might see if other file types (ogg, even 
> wav) play properly from the hard disk (not from a CD; that normally uses a 
> direct connection between the CD drive and the sound card and is irrelevent 
> to this diagnosis because it bypasses the kernel's sound stuff). Also 
> confirm that the other playback apps, like mpg321 and xine, work on that 
> distro, if you haven't already done this (I can't be sure from what you 
> wrote if you did those tests with both distros or just Fedora).
> 

I am only using Slackware. Fedora is just there for nostalgic reason
and checking like in this case. In Slackware all other playback apps as
mentioned above as well as kaboodle and juk of kde play .mp3 files properly.
Xmms plays.wav files from the hd very clear. I did not check
other playbacks in Fedora.

> along with a more 
> descriptive characterization of the Slackware version of the symptom.
> 
The distortion in xmms playing .mp3 files is so awful that one quickly
cuts the sound off. The output driver in xmms is ALSA.

I checked now xmms again and found the problem: the equalizer was set on
putting it off makes mp3 files play properly.

Thanks & regrads
-- 
Peter
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