bugAlsa 0.9 Xmms Output Plugin - Bugs: bug #1775, Brief noise on play or stop

 
 

bug #1775: Brief noise on play or stop

Submitted by:  Mark Schreiber <mark7>
Submitted on:  Fri 22 Nov 2002 02:28:06 AM UTC  
 
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open

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Sat 03 Dec 2005 11:45:52 AM UTC, comment #5: 

I have the same problem, but it's not limited to alsa-xmms, aplay also exposes said artifacts. This behaviour started with kernel 2.6.14 which uses a new version of alsa-driver iirc. I tried getting around it by also installing the other updated alsa-* packages, as well as xmms-alsa (I use Gentoo, dmix, and a Creative Labs Extigy with snd_usb_audio driver), but it didn't help.

Another interesting new "feature" I noticed, is when I seek forwards or backwards in xmms, I can hear the song at least twice at the same time (it gets louder when seeking). Also, if I use the tonegen plugin to tune my ukulele, when switching between the tones, I hear both tones at the same time for a short time. It's very weird...

Wolfgang Illmeyer <escitalopram>
Wed 27 Nov 2002 07:53:29 AM UTC, comment #4: 

I have tried changing the buffer from 700 to 7000, and the period between 1 and 250 (and uncovered another bug, posted).  Doesn't seem to make a difference.

If I bring the period to 1, I still (subjectively less frequently) get the garbage at the beginning (after hitting play), but it's reduced to no more than an extremely brief click.  Same with hitting stop -- garbage, but only a little bit, just a click.

Mark Schreiber <mark7>
Tue 26 Nov 2002 01:25:58 PM UTC, comment #3: 

Did you try tweaking the period time setting in the 'advanced settings' tab?

Matthieu Sozeau <mat_tam>
Sun 24 Nov 2002 10:24:47 PM UTC, comment #2: 

Aplay does not exhibit this, AFAI can tell.  It doesn't always seem to happen.  I'd say it happens about 60% of the time.  The noise that plays right after I hit play seems to be the sound that was playing (perhaps about to play?) right before I hit the stop button.

So I hit stop right in the middle of some percussion, then tap play, and I hear a tiny bit of the drum noise before the beginning of the song starts playing.

Mark Schreiber <mark7>
Fri 22 Nov 2002 12:42:58 PM UTC, comment #1: 

Do you encounter that noise with other pure alsa players like aplay or alsaplayer?

Matthieu Sozeau <mat_tam>
Fri 22 Nov 2002 02:28:06 AM UTC, original submission:  

I hear a pop or noise for a very short period of time when I hit stop, and frequently hear the same thing when I hit play.  This does not happen with the xmms OSS driver combined with ALSA using OSS emulation.  It happens both with and without mmap.

xmms-1.2.7-1
alsa-xmms-0.9.7-1
Advanced Linux Sound Architecture Driver Version 0.9.0rc2

  1. [card0          ]: EMU10K1 - Sound Blaster Live!

                     Sound Blaster Live! at 0xd000, irq 9

Mark Schreiber <mark7>

 

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