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Thank you, it worked. I used AudioPlaySdResmp as a drop-in replacement for AudioPlaySdWav and wrapped SD.open(...) and file.read(...) with the mentioned calls. I'm noticing some distortion on my samples that I have to look into, but otherwise the hang / crash issues I've been having have been fixed.

Thanks for the reply, in the mean time I went down the rabbit hole of reading this thread, which seems to discuss this exact topic: https://forum.pjrc.com/index.php?threads/attempting-non-blocking-concurrent-sd-read-write-access.75896/ I will try the variable playback library and also the...

I'm implementing a sequencer on the Teensy 4.1. While the sequencer is playing back up to 8 voices I'd like to generate the waveform of the selected sample. I'm using `SD.open` to open the file and process the samples in batches of 128 samples to calculate 200 sample long waveform array for the...

Hello Loveaurell, Great project and awesome casing. I took a look at the source code and I was wondering how you found out about the poly/chord/mono modes. I'm having trouble controlling that aspect of my MKS-50 with any controller (ex. Ctrlr) or with raw sysex data. The synth receives the data...