[PlanetCCRMA] Jack crackle...

[David Fraser]

Kjetil Svalastog Matheussen wrote:

>On Tue, 9 Mar 2004, David Fraser wrote:
>  
>
>>>>Generally, but there are different ways to write to soundcards under ALSA,
>>>>and jack uses a particular one. Or something like that - I'm a bit hazy on
>>>>the details :)
>>>>        
>>>>
>>>I'm using the same "card" without any of the described problems...
>>>      
>>>
>>Interesting, what driver are you using for it?
>>    
>>
>Same as you, snd-intel8x0. What gives "/sbin/lsmod",
>"more /proc/asound/version" and "more /proc/version" ?
>  
>
I've put the relevant output of these below ... (do I need more from lsmod?)
I also have been having problems with jack sometimes producing silence 
... restarting jack sometimes fixes it, sometimes not.
Through this though I did notice that I had newer versions of alsa-libs 
and alsa-utils than the rest of alsa...
but changing these to the same versions (latest from ccrma) did not 
affect the problem...

[root at scir bin]# lsmod | grep snd
snd-seq                47632   0  (unused)
snd-intel8x0           23460   3
snd-pcm                87392   2  [snd-intel8x0]
snd-timer              20068   0  [snd-seq snd-pcm]
snd-ac97-codec         50712   0  [snd-intel8x0]
snd-mpu401-uart         5256   0  [snd-intel8x0]
snd-rawmidi            19008   0  [snd-mpu401-uart]
snd-seq-device          6332   0  [snd-seq snd-rawmidi]
snd                    44676   1  [snd-seq snd-intel8x0 snd-pcm 
snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
soundcore               6500   0  [snd]
snd-page-alloc         10356   0  [snd-intel8x0 snd-pcm]
[root at scir bin]# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 0.9.6.
Compiled on Sep 11 2003 for kernel 2.4.20-20.1.caps.rh90 with versioned 
symbols.
[root at scir bin]# cat /proc/version
Linux version 2.4.20-20.1.caps.rh90 (root at cmn19.Stanford.EDU) (gcc 
version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 Wed Sep 10 12:51:47 
PDT 2003

[root at scir bin]# rpm -qa | egrep '^alsa'
alsa-utils-1.0.2-2
alsaplayer-0.99.76-1.rhfc1.ccrma
alsa-driver-1.0.1-1.cvs.rhfc1.ccrma
alsa-patch-bay-1.0.0-1.rhfc1.ccrma
alsa-kernel-2.4.20-20.1.caps.rh90-0.9.6-2.cvs.rh90
alsa-lib-1.0.2-2
alsa-firmware-1.0.1-1.cvs.rhfc1.ccrma
alsa-kernel-2.4.24-1.ll.rhfc1.ccrma-1.0.1-1.cvs.rhfc1.ccrma
alsa-lib-devel-1.0.2-2
alsa-tools-1.0.1-1.cvs.rhfc1.ccrma
jack-audio-connection-kit-0.94.0-1.rhfc1.ccrma