You must be confusing me with someone else — I didn't pose a query on this topic until today!!
1) I got this idea from the 'other' topic where this is mentioned, and tried it in desperation to see if any sound was produced, ta.
2) That's good to know, if it's normal and expected behaviour.
3) I hoped to get something from the speaker-test command(s) — maybe this is where I'm going wrong as I haven't tried anything other than Sonic Pi beyond this..?
So, I'll explore sample rate options for starters.
But what about the low volume with Sonic Pi? Not something I intend to use with this set-up mind, but after setting the volume to 80, as advised throughout the forums it's barely audible. Should I just write this (Sonic Pi) off..?
I'd planned to make a crude MIDI module for an M-Audio USB controller keyboard.( Just for practising).