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I've bought a seeed voice card as an external GPIO sound card and as a input audio device to use pocket sphinx.After it was installed successfully, i typed "cat /proc/asound/cards" to see my card index and it displayed:

0 [ALSA           ]: bcm2835_alsa - bcm2835 ALSA
                     bcm2835 ALSA
1 [seeed2micvoicec]: seeed-2mic-voic - seeed-2mic-voicecard
                     seeed-2mic-voicecard

then i typed"cat /proc/asound/modules" and i found something that i'm not so sure whether right or not:

0 snd_bcm2835
1 snd_soc_simple_card

My question is, how can I use the device which index is 1, or should I say, how I off the bcm2835 and make seeed2micvoicec into the index "0"? And does it supposed to be 1 snd_soc_seeed_2mic_voic in /proc/asound/modules, why it is snd_soc_simple_card?

  • don’t load the driver for onboard audio. /boot/config.txt – user2497 Mar 22 at 11:11
  • did you mean that i had to make: Enable audio (loads snd_bcm2835) dtparam=audio=off in /boot/config.txt ,i already did this, but it's still not working, i think it should not be the snd_soc_simple_card because i don't think it's my own voice card's driver, but i can't modify this, did you know why and how?thanks! – raspfaker Mar 23 at 12:20
  • unload the kernel module. ftp.belnet.be/mirrors/www.tldp.org/en/Module-HOWTO/x197.html – user2497 Mar 23 at 12:22

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