FAQ017

From the ALSA wiki

My usb-audio device has problems when using sample rates above 22kHz. Why's that?

I am not sure whether it is because of Linux-usb, Alsa or because of the Creative USB Sound Blaster Audigy 2 NX itself, but when you play sounds using a 44.1kHz sample-rate the sound is always crackled. One possible workaround is to force all sounds to play at a 48kHz sample-rate.

An example of a .asoundrc file which does this is: (thx to Florian Schmidt ( tapas) for the idea to do so)

pcm.fixed {
   type plug slave {
        pcm "hw:1,0"
        rate 48000
   }
}

Be sure to choose the correct card: hw:1,0 is the 2nd soundcard (soundcards numbering starts from 0), while hw:0,0 would be the first soundcard.

More information about the Creative USB Sound Blaster Audigy 2 NX under linux can be found on my homepage: http://nix.bockb.de I'll post more information as soon as I get to know more about this issue.

(page created: 2004-03-25 19:50 CET by Benjamin Bock [bnjmnbck])

I found another solution that worked for me (a Terratec Aureon 5.1 USB MKII soundcard). Setting the rate to 48000 didn't eliminate the crackles in my speakers. I tried some changes in XMMS (that's where I mainly had the problem) and switching off the Mmap mode worked. I'm using a 5.1 speaker set in duplicate mode (if that's relevant).

My e-mail (if you should have any questions about that): coyot_zg@o2.pl