Can't get sound in to work

I'm trying to use the hifiberry ADC pro to stream audio with a raspberry pi 4.

I'm using Ubuntu 22.04.2 LTS.

I used the unix 4.x kernel guide to setup the config.txt in /boot/firmware/config.txt:

#added and removed lines:


(tried with fkms off, kms off and without either of them).

aplay -l will return the correct card (I think?):

**** List of PLAYBACK Hardware Devices ****

card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplusadcpro], device 0: HiFiBerry DAC+ADC Pro HiFi multicodec-0 [HiFiBerry DAC+ADC Pro HiFi multicodec-0]
Subdevices: 1/1
Subdevice #0: subdevice #0

Now the problem is that there is no audio when I start a stream with darkice, or try to record with arecord -d 10 -r 48000 -c 2 -f S16_LE

I'm sure I'm inserting audio into the card using the analogue input, phone jack 3.5 mm. But the audio recording is completely silent.

Now I was hoping anyone could point me to some things I could try, because I'm not sure what to do next.


Thanks in advance!






Please sign in to leave a comment.