[linux-audio-user] terratec aureon 5.1 usb and jack

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Hi,

recently I bought a Terratec Aureon 5.1 USB for my Thinkpad R32 (has an
Intel 82801CA-ICH3 onboard). The Intel is card 0, the Terratec card 1. I
have no problems playing some MP3s with xmms or "alsaplayer -d hw:1 -d
1024" (although I don't know why I have to use "-f 1024", I just played
with the parameters) over the Terratec. But whenever I play through jack
the sound begins to crackle, which is really annoying.

Here are my module configurations:

,----
| alias char-major-116 snd
| alias char-major-14 soundcore
| 
| options snd major=116 cards_limit=4
| 
| # intel8x0
| alias sound-service-0-0 snd-mixer-oss
| alias sound-service-0-1 snd-seq-oss
| alias sound-service-0-3 snd-pcm-oss
| alias sound-service-0-8 snd-seq-oss
| alias sound-service-0-12 snd-pcm-oss
| 
| # terratec aureon
| alias sound-service-1-0 snd-mixer-oss
| alias sound-service-1-3 snd-pcm-oss
| alias sound-service-1-12 snd-pcm-oss
| options snd-usb-audio vid=0x0ccd index=1
| 
| alias /dev/dsp* snd-pcm-oss
| 
| alias snd-card-0 snd-intel8x0
| alias snd-card-1 snd-usb-audio
| alias snd-card-2 snd-virmidi
| alias snd-card-3 snd-usb-audio
| 
| alias sound-slot-0 snd-card-0
| alias sound-slot-1 snd-card-1
`----

And here is how qjackctl starts jackd:

,----[ .jackdrc ]
| /usr/bin/jackstart -R -dalsa -dhw:1 -r48000 -p256 -n2 -S
`----

Jack output:

,----
| back from read, ret = 1 errno == Success
| jackd 0.98.1
| Copyright 2001-2003 Paul Davis and others.
| jackd comes with ABSOLUTELY NO WARRANTY
| This is free software, and you are welcome to redistribute it
| under certain conditions; see the file COPYING for details
| 
| loading driver ..
| apparent rate = 48000
| creating alsa driver ... hw:1|hw:1|256|2|48000|0|0|nomon|swmeter|-|16bit
| control device hw:1
| configuring for 48000Hz, period = 256 frames, buffer = 2 periods
`----

Kernel 2.4.25 with CAT_SETPCAP patch but no low latency patch.

BTW, I have no crackling sound using jack with the Intel. Hopefully
someone can help me with my problem.

   Sebastian

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