SOLUTION: MY SOLDERING WAS AT FAULT! New SpeakerpHAT works perfect (after a lot of soldering exercises!)
Have looked through the threads - found no obvious workaround / solution in getting my SpeakerpHAT to sing…
I’m running it on a Pi Zero W with latest Stretch-Lite distro. Soldering seems to have gone fine. I installed the ‘one line installer’ and ran ./test.sh.
Output was as follows -
testing audio speaker-test 1.1.3 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 96 to 1048576 Period size range from 32 to 349526 Using max buffer size 1048576 Periods = 4 was set period_size = 262144 was set buffer_size = 1048576 0 - Front Left 1 - Front Right Time per period = 3.176435 testing basic wav playback Playing WAVE './test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo testing text-to-speech testing VU meter
VU meter works fine, but no sound at all and no heat from the speaker either.
Any suggestions as to where to turn next?