Raspbery Pi 3 no sound card

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Raspbery Pi 3 no sound card

Postby m4thu » Sun Oct 29, 2017 7:48 am

Hey,

I have no sound card except vc4-hdmi on my system. And that is kinda bad, as I would like to use my raspberry as a pulseaudio server. Anybody has an idea?

Code: Select all
root@alarm /home/alarm # cat /proc/asound/cards
 0 [vc4hdmi        ]: vc4-hdmi - vc4-hdmi
                      vc4-hdmi


Code: Select all
root@alarm /home/alarm # cat /boot/config.txt
dtparam=audio=on


Code: Select all
root@alarm /home/alarm # lsmod
Module                  Size  Used by
brcmfmac              311296  0
brcmutil               16384  1 brcmfmac
cfg80211              688128  1 brcmfmac
rfkill                 32768  4 cfg80211
smsc95xx               40960  0
usbnet                 53248  1 smsc95xx
mii                    20480  2 usbnet,smsc95xx
vc4                   163840  3
drm_kms_helper        192512  2 vc4
drm                   421888  3 vc4,drm_kms_helper
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
pwm_bcm2835            16384  0
bcm2835_wdt            16384  0
i2c_bcm2835            16384  0
snd_bcm2835            36864  0
m4thu
 
Posts: 2
Joined: Fri Jul 15, 2011 8:25 pm

Re: Raspbery Pi 3 no sound card

Postby rvalles » Tue Jan 16, 2018 11:12 am

I wouldn't recommend it. Raspberry Pi aren't great at audio. Their audio output only has 10bit precision.
rvalles
 
Posts: 5
Joined: Sat Feb 02, 2013 11:18 am

Re: Raspbery Pi 3 no sound card

Postby naums » Mon Jan 22, 2018 10:50 pm

Hello.

I'm not that sure, but maybe you have to enable the i2c interfaces in config.txt. For reference, my config.txt

Code: Select all
device_tree_param=spi=on
gpu_mem=128
disable_overscan=1
dtparam=audio=on
dtparam=i2c1=on
dtparam=i2c_arm=on


and the alsa-cards and loaded kernel-modules.

Code: Select all
$ cat /proc/asound/cards
 0 [ALSA           ]: bcm2835 - bcm2835 ALSA
                      bcm2835 ALSA

$ lsmod
Module                  Size  Used by
fuse                   93837  3
brcmfmac              206290  0
brcmutil                7361  1 brcmfmac
cfg80211              543363  1 brcmfmac
joydev                  9542  0
evdev                  12129  6
spidev                  7148  0
bcm2835_rng             2679  0
spi_bcm2835             6944  0
rng_core                7676  2 bcm2835_rng
bcm2835_gpiomem         3515  0
i2c_bcm2835             5973  0
uio_pdrv_genirq         3456  0
fixed                   2921  0
uio                     9072  1 uio_pdrv_genirq
sch_fq_codel            9358  3
i2c_dev                 6737  0
i2c_bcm2708             5638  0
snd_bcm2835            21570  1
snd_pcm                87826  1 snd_bcm2835
snd_timer              21638  1 snd_pcm
snd                    60574  5 snd_timer,snd_bcm2835,snd_pcm
ip_tables              12235  0
x_tables               17324  1 ip_tables
ipv6                  387315  74
naums
 
Posts: 27
Joined: Sun Dec 31, 2017 11:11 am


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