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On 10/30/06, Leandro Melo de Sales <leandroal@×××××.com> wrote: |
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> Hi list... |
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> |
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> I have an usb sound system from Gradiente company (an eletronic |
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> device factory) and I plugged it on my system. dmesg command shows |
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> this: |
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> |
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> input: Gradiente AS-M5X0 as /class/input/input3 |
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> input: USB HID v1.00 Device [Gradiente AS-M5X0] on usb-0000:00:1d.1-1 |
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> |
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> But when I play a mp3 media the sound is not forwarded to my usb |
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> device, instand, the sound is still played through my integrated |
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> laptop device. |
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> On windows I use it without problem. So, what do I have to do to |
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> forward the sound to my usb device? |
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|
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Probably windows is disabling any existing sound card or at least |
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making the USB the "default" sound device. Unfortunately there is no |
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equivalent with alsa currently. |
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|
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So assuming that you've got the alsa drivers loaded for this device |
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(/proc/asound/cards should contain two entries), you can usually |
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specify alsa device as "hw1,0". The exact method for doing this |
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depends on what app you are using. For example on amarok with the |
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xine it is under Configure Amarok... -> Engine -> ALSA Device |
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Configuration. If you enter hw1,0 for Stereo there, then 2 channel |
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audio should be played on the first pcm of the second sound card. |
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|
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You should also be able to do this with a .asoundrc file, with an entry like: |
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|
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pcm.default { |
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type hw |
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card 1 |
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device 1 |
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} |
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|
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The above is really primitive, without any dmix plugin (software |
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mixing), so only one app could use the device at a time unless it does |
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hardware mixing. Mostly this is just to give you an idea of where to |
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look! ;-) |
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|
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-Richard |
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-- |
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