Re: EMU10K1 - CVS: nasty "click" at end of WAV files, and spurious extra modules.

[Takashi Iwai <tiwai@suse.de>]

At Mon, 3 Feb 2003 13:38:15 +0000 (GMT),
Chris Rankin wrote:
> 
>  --- Takashi Iwai <tiwai@suse.de> wrote:
> > Hi Chris,
> > 
> > At Fri, 31 Jan 2003 19:56:51 +0000 (GMT),
> > Chris Rankin wrote:
> > > 
> > >  --- Takashi Iwai <tiwai@suse.de> wrote:
> > > > do you know which version (or date) the driver
> > > > worked without clicks?
> > > > there have been not many changes for emu10k1 or
> > pcm
> > > > stuffs recently.
> > > 
> > > On a hunch, I downloaded the alsa-lib-0.9.0rc6 and
> > > alsa-util-0.9.0rc6 packages and tried those
> > against
> > > the current CVS version of the kernel modules.
> > There
> > > is no nasty clicking sound using 0.9.0rc6
> > userspace.
> > > 
> > > Even more interesting:
> > > 
> > > alsa-lib 0.9.0rc6 + alsa-utils CVS => CLICK!
> > > alsa-lib CVS + alsa-utils 0.9.0rc6 => No click.
> > 
> > wow, that's interesting.  thanks for tracking it
> > down.
> > 
> > unfortuantely i cannot reproduce this problem with
> > the combination of
> > alsa-lib CVS + alsa-utils CVS on my audigy.
> > 
> > is it possible that the behavior depends on the wav
> > file to play?
> > if the file is not too big, could you send me the
> > example wav file to
> > trigger this, so that i can test on my machine?
> 
> Sure, although maybe you have them already? They're
> the sounds from the Windows 95 sound schemes, such as
> "Jungle: Windows start", "Jungle: Windows exit",
> "Robotz: error" etc.
> 
> The *specific* change that causes the click is 1.156
> in aplay.c. This change went in about 29th January.
> However, having said that, I'm not entirely sure that
> aplay 1.155 isn't chopping off the first little bit of
> the WAV files either. And I tried using aplay with my
> SoundScape driver last night, too (which hasn't
> changed significantly for a very long time, and which
> only glues the CS4321 and MPU-401 drivers together
> anyway). With this sound card, I heard the WAV file
> start playing then quickly RE-start playing... most
> odd. It didn't used to do that, and the "click" sound
> was also audible at the end with aplay.c 1.156 too.

could you try the latest cvs aplay.c?


thanks,

Takashi


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