shibonja / rpi-proto-audio-codec-configuration-on-raspberry-pi-v2-and-v3 Goto Github PK

sudo nano /boot/config.txt ########################## #uncomment lines: dtparam=i2c_arm=on dtparam=i2s=on dtparam=spi=on #add lines: dtoverlay=i2s-mmap dtoverlay=rpi-proto

sudo nano /etc/modules ###################### #add lines: i2c-bcm2708 i2c-dev

snd_soc_bcm2708_i2s bcm2708_dmaengine snd_soc_wm8731 snd_soc_rpi_proto

#List amixer controls amixer controls

numid=2,iface=MIXER,name='Master Playback ZC Switch' numid=1,iface=MIXER,name='Master Playback Volume' numid=4,iface=MIXER,name='Line Capture Switch' numid=5,iface=MIXER,name='Mic Boost Volume' numid=6,iface=MIXER,name='Mic Capture Switch' numid=8,iface=MIXER,name='ADC High Pass Filter Switch' numid=3,iface=MIXER,name='Capture Volume' numid=10,iface=MIXER,name='Playback Deemphasis Switch' numid=11,iface=MIXER,name='Input Mux' numid=14,iface=MIXER,name='Output Mixer HiFi Playback Switch' numid=12,iface=MIXER,name='Output Mixer Line Bypass Switch' numid=13,iface=MIXER,name='Output Mixer Mic Sidetone Switch' numid=7,iface=MIXER,name='Sidetone Playback Volume' numid=9,iface=MIXER,name='Store DC Offset Switch'

#change control name='Output Mixer HiFi Playback Switch' amixer cset numid=14 on #check changes amixer cget numid=14 numid=14,iface=MIXER,name='Output Mixer HiFi Playback Switch' ; type=BOOLEAN,access=rw------,values=1 : values=on

#change control name=name='Mic Capture Switch' amixer cset numid=6 on #check changes amixer cget numid=6 numid=6,iface=MIXER,name='Mic Capture Switch' ; type=BOOLEAN,access=rw------,values=1 : values=on

#change control name=name='Input Mux' amixer cset numid=11 1 #check changes amixer cget numid=11 numid=11,iface=MIXER,name='Input Mux' ; type=ENUMERATED,access=rw------,values=1,items=2 ; Item #0 'Line In' ; Item #1 'Mic' : values=1

#save changes sudo alsactl store

sudo reboot

#record something arecord -c 2 -D hw:0,0 -f S16_LE -r48000 save.wav

sudo nano /etc/asound.conf ################################### pcm.!default { type hw card 0 } ctl.!default { type hw card 0 } ###################################