Code:CTC:sjasmplus
From SpecNext official Wiki
A ZX Next dotcommand - Playback 8-Bit 31250 Stereo PCM files Uses the CTC timers to playback HiFI pcm files can be found here https://github.com/em00k/playwav32
Basic running at the same time is NOT currently possible
Convert a normal WAV file to the following format :
8 Bit 31250 Hz Stereo
Save this file as raw / pcm data then use :
.playwav32 myfile.raw