I just received my Pirate Radio kit and I have built one and it is working fine.
Then I am thinking switch the board to my old Pi ZERO with wifi dongle so I could make something new with Zero W.
But it seems no sound if I switch the board ( Same SD card)
I could see the VU meter works as usually but just no sound. I think the difference is only that I use one USB device in Zero for the wifi. but even though I remove the wifi dongle , it doesn't work either (the playlist contains some on-disk MP3s)
I assume the only difference of Zero and Zero W is build-in Wifi chip?
Here are some commands I tried but it seems the driver is fine and the DAC is detected:
pi@piradio:~/scripts $ aplay -L
Discard all samples (playback) or generate zero samples (capture)
PulseAudio Sound Server
Default Audio Device
Direct sample mixing device
Direct sample snooping device
Direct hardware device without any conversions
Hardware device with all software conversions
pi@piradio:~/scripts $ speaker-test -l5 -c2 -t wav
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using device: phat-beat
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 2048 to 8192
Period size range from 1024 to 1024
Using max buffer size 8192
Periods = 4
was set period_size = 1024
was set buffer_size = 8192
0 - Front Left
1 - Front Right
Time per period = 2.850210
0 - Front Left
In the speaker-test. No sound but VU meter is working.