Issue with Audio DAC Shim (Line Out) - No sound from left channel

Support
1

I have a Audio DAC SHIM (Line-Out) which I installed onto a Raspberry Pi Zero 2 W.

When first installed without soldering there was no audio, unless pressing/fiddling a bit with the board. So after reading this topic Audio DAC Shim (Line Out), No Sound until finger test I decided to solder the board onto the Pi Zero with the required pins. This indeed solved the issue of no audio at all, however now I can now only hear audio from one channel, the right channel is working the left is not.

I believe I have the board correctly configured config.txt:

# Added overlay for pimoroni audio-dac-shim-line-out
dtoverlay=hifiberry-dac
gpio=25=op,dh

# No sound other than hifiberry dac
dtparam=audio=off

Below is the output of aplay -L:

null
    Discard all samples (playback) or generate zero samples (capture)
default
output
hw:CARD=sndrpihifiberry,DEV=0
    snd_rpi_hifiberry_dac, HifiBerry DAC HiFi pcm5102a-hifi-0
    Direct hardware device without any conversions
plughw:CARD=sndrpihifiberry,DEV=0
    snd_rpi_hifiberry_dac, HifiBerry DAC HiFi pcm5102a-hifi-0
    Hardware device with all software conversions
sysdefault:CARD=sndrpihifiberry
    snd_rpi_hifiberry_dac, HifiBerry DAC HiFi pcm5102a-hifi-0
    Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
    snd_rpi_hifiberry_dac, HifiBerry DAC HiFi pcm5102a-hifi-0
    Direct sample mixing device

Running the following command to test the audio

speaker-test -c2 -twav -l7

Produces the following:

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 8 to 131072
Period size range from 4 to 65536
Using max buffer size 131072
Periods = 4
was set period_size = 32768
was set buffer_size = 131072
 0 - Front Left
 1 - Front Right
Time per period = 0.388100
 0 - Front Left
 1 - Front Right
Time per period = 3.071849
 0 - Front Left
 1 - Front Right
Time per period = 3.071868
 0 - Front Left
 1 - Front Right
Time per period = 3.070820
 0 - Front Left
 1 - Front Right
Time per period = 3.071268
 0 - Front Left
 1 - Front Right
Time per period = 2.733433
 0 - Front Left
 1 - Front Right

I can only hear the “Front Right” sample.

Anyone experience the same issue, or is there something else I should configure or test?

2

Did you solder all the Ground pins tagged with black blobs?
Audio DAC SHIM at Raspberry Pi GPIO Pinout

3

No in the other post I mentioned (you :)) it says:

And probably +5V maybe 3.3V and at least one ground.

So that’s what I did, but I could try as a test. I will let you know if that worked!

4

@alphanumeric unfortunately it did not work, I have now soldered all the gnd pins but still the same issue. Anything else I should check?

5

Not that I know of, unfortunately.

6

Have you checked the plug you use for the audio-jack?

7

Yes I did, good point though. I have tested the jack to jack cable with my phone and some stereo headphones and that works.