My PiDog did have sound, but has now lost it. Steps I’ve taken to try and rectify are:
I have reinstalled the i2samp.sh multiple times and restarted the Pi. I have also run the sudo killall pulseaudio command, and then tried to run audio again, and it didn’t work.
I have also installed mplayer and tested with that, but still no sound. I’ve attached a screenshot of the attempt to run with mplayer:
I’ve done a physical inspection and there is no heatsink on my Pi that might be causing pressure on the speaker.
Can you please remove the robot hat and take a picture of the back side and confirm to us if the speaker is burned out yet.
Hello, pics attached. Many thanks
A replacement speaker will be sent to you, and a member of the after-sales team will contact you via your e-mail address later.
Tip: After replacing the speakers, please reinstall i2samp.sh and then go to run the sound example to see how it works.
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Hi. I just bought PIDOG, the first installation was fine and the sound test was OK. After that, sound is not working anymore.
I tried to reexecute i2samp.sh several times, no sound.
I reinstalled all SD card from scratch, no sound.
I tried to play a wav file, no error but no sound.
please help!
systemctl restart aplay.service
set volume to 100
Simple mixer control ‘PCM’,0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 255
Front Left: 255 [100%]
Front Right: 255 [100%]
We can now test your i2s amplifier
Set your speakers if possible!
Do you wish to test your system now? [y/N] y
Testing…
speaker-test 1.2.8
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 2229 to 8916
Period size range from 1114 to 1115
Using max buffer size 8916
Periods = 4
was set period_size = 1114
was set buffer_size = 8916
0 - Front Left
1 - Front Right
Time per period = 2.851163
0 - Front Left
1 - Front Right
Time per period = 2.997056
0 - Front Left
1 - Front Right
Time per period = 3.018413
0 - Front Left
1 - Front Right
Time per period = 3.016675
0 - Front Left
1 - Front Right
Time per period = 3.018408
All done!
card 1: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0 [HifiBerry DAC HiFi pcm5102a-hifi-0]
- Subdevices: 0/1*
- Subdevice #0: subdevice #0*
pi@raspberrypi2024:~/pidog/sounds $ aplay angry.wav
Playing WAVE ‘angry.wav’ : Signed 24 bit Little Endian in 3bytes, Rate 44100 Hz, Stereo
pi@raspberrypi2024:~/pidog/sounds $
I tried to force aplay to use pidog card:
aplay -D plughw:1,0 XXX.wav
but I got an error “Device or resource busy”
For info, I also noticed that, after reboot, the card number (aplay -l) of pidog audio card sometimes change from 1 to 2, and it is 1 again after executing i2samp.sh… but the error is always the same.
Can you remove the robot hat and take a picture of the back and verify that the speakers are not burned out.
Please contact the after-sales team at service@sunfounder.com
We will send you a replacement speaker.
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Hello! I installed the new speaker and it works 
Thank you so much!
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I have the same problem, thought that this might be because I use the 32 bit version of Bookworm.
What is the recommended version 32 or 64 bit ? I have 32 bit bookworm OS
Best Regards
Thomas
Both bookworm 32-bit and 64-bit systems are compatible with pidog.
If the speaker does not produce sound, please reinstall i2samp.sh and then run the sound example to see it in action.
Please also provide us with a clear picture of the speaker.
