added sample pitching LUTs, still quite performant

three channel software mixing, queue scheduler

rudimentary sequencer

M5Sound now can load samples from SD card

here it is playing a 3 MB sample with 1024 bytes for the I2S buffer and 256 bytes for the file buffer

not as impressive as it could be considering this is on top of (at least tested so far) 4-channel software mixing for playback that i'm not demonstrating here

this is a machine with less than 200 KB free for the micropython stack

@mavica_again oooh it sounds glorious

@mavica_again something about this little computer keeps reminding me of various adorable little compact oscilloscopes from the 70s and 80s

(sorry, vertical video ahead)
https://www.youtube.com/watch?v=tq2WVK8XsHc

@vxo ouuuhhhh tiny crt