Hi Bob, hi Ralf, >> hw0 hamerfall dsp >> hw 0.0 hamerfall 9652 (this is selected) >> >> >> Why is there two? only one card on here > > Hi Bob :) > > this isn't for two cards, both are hw:0, a second card would be hw:<any > other number but 0>. I don't know what it's good for, but I've got this > for my cards too.
I've just been writing about this topic in the Campcaster manual: http://en.flossmanuals.net/Campcaster/ConfiguringSoundcards Each device of ALSA hardware has a card number *and* a device number. The first hardware card in the system is given the name: hw:0 Each item of audio hardware can sometimes have multiple devices, also numbered from zero upwards. The card number and device number are separated by a comma. Often, there's only one device per card, so the first card and the first device on that card is referred to as: hw:0,0 Some audio interfaces have both analogue outputs (line level) and digital audio outputs (such as S/PDIF), on the same card. To check which device has which number, we can use the aplay command: $ aplay -l The terminal might display something like: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Aureon51MkII [Aureon5.1MkII], device 0: USB Audio [USB Audio] Subdevices: 1/1 In this example, the internal soundcard (hw:0) is an Intel HDA, and the external USB card (hw:1) is an Aureon 5.1 MkII. On the internal Intel HDA card, two separate devices are listed. The first, hw:0,0 is shown as the analog output device, and the second, hw:0,1 is shown as the digital output device. Cheers! Daniel _______________________________________________ 64studio-users mailing list [email protected] http://lists.64studio.com/mailman/listinfo/64studio-users
