Re: [SLE] USB audio questions

From: Sid Boyce (sboyce_at_blueyonder.co.uk)
Date: 08/30/05

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    Date: Tue, 30 Aug 2005 15:31:51 +0100
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    Simon Roberts wrote:
    > I think I'm being stupid, but I can't work out what I'm doing wrong.
    >
    > I have a built in soundcard that works fine, and an external USB device
    > (Edirol UA-3FX). The USB device seems to be recognized and Yast is
    > willing to send "test" sound to it. However, Yast doesn't seem to know
    > there's the possiblity of input from it, and none of they sound
    > utilities I've tried (audacity, aplay/arecord, play/record) are able to
    > drive it. All these programs complain that they're unable to "set 8 bit
    > sample" or 16 bit sample. This device, I believe, does 24 bit. Audacity
    > doesn't allow me a list of devices, I have to relink /dev/dsp to
    > /dev/dsp1 and then it complains that it can't set the necessary sample
    > rates.
    >
    > What should I be doing?
    >
    > TIA,
    > Cheers,
    > Simon
    >
    >
    > "You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions." — Naguib Mahfouz
    >
    >
    >
    > ____________________________________________________
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    > http://www.yahoo.com/r/hs
    >
    >

    You should have 2 devices /dev/dsp and /dev/dsp1.
    # l /dev/dsp*
    crw------- 1 lancelot audio 14, 3 2005-08-25 20:31 /dev/dsp
    crw------- 1 lancelot root 14, 3 2005-03-19 19:36 /dev/dsp0
    crw------- 1 lancelot audio 14, 19 2005-08-25 20:31 /dev/dsp1
    crw------- 1 lancelot audio 14, 35 2005-03-19 19:36 /dev/dsp2
    crw------- 1 lancelot audio 14, 51 2005-03-19 19:36 /dev/dsp3
    crw-rw---- 1 root root 55, 0 2005-03-19 19:36 /dev/dsp56k

    These are the modules I have loaded for the onboard intel8x0 and the
    usb-audio.
    barrabas:/ftp/aug05/linux # lsmod|grep snd
    snd_seq_dummy 3844 0
    snd_seq 52240 1 snd_seq_dummy
    snd_pcm_oss 51744 0
    snd_mixer_oss 18560 5 snd_pcm_oss
    snd_usb_audio 75328 1
    snd_usb_lib 15488 1 snd_usb_audio
    snd_rawmidi 25760 1 snd_usb_lib
    snd_seq_device 8716 3 snd_seq_dummy,snd_seq,snd_rawmidi
    snd_hwdep 9376 1 snd_usb_audio
    snd_intel8x0 32576 5
    snd_ac97_codec 79228 1 snd_intel8x0
    snd_pcm 91400 4
    snd_pcm_oss,snd_usb_audio,snd_intel8x0,snd_ac97_codec
    snd_timer 25348 2 snd_seq,snd_pcm
    snd 56452 15
    snd_seq,snd_pcm_oss,snd_mixer_oss,snd_usb_audio,snd_rawmidi,snd_seq_device,snd_hwdep,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
    soundcore 9952 5 snd
    snd_page_alloc 10632 2 snd_intel8x0,snd_pcm

    You can set the devices up properly, "rcalsasound restart", "cat
    xxxx.wav >/dev/dsp" and "cat xxx.wav >/dev/dsp1" to test which is dsp
    and which is dsp1. I used to have a problem where the onboard used to
    show up as dsp1 and the usb as dsp after a reboot, i.e swapped, but I
    can't remember what I did to correct it, probably with YaST.
    Regards
    Sid. 

    -- 
Sid Boyce ... Hamradio License G3VBV, Keen licensed Private Pilot
Retired IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support 
Specialist
Microsoft Windows Free Zone - Linux used for all Computing Tasks
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  • Next message: Jerry Feldman: "Re: [SLE] Root password - is it THAT simple to alter it?"