Teensy 4.1 Eurorack sample player with 8 note polyphony.
- Teensy Variable Playback library from newdigate.
- At least one psram chip soldered onto the teensy 4.1. You can also use 2 for 16mb of sample storage.
- Stereo Plate Reverb
- MicroSD card
- Full BOM is in schematic folder
It's very important to have your samples in a specific structure. The root should have a folder called samples. Inside that are your instruments with whatever name you like. Inside them, there must be a total of 8 wav files (16bit, 44.1khz) named 1-8.wav. Like This:
If you don't have 8 files per instrument, just duplicate some of them to get a total of 8.
MIDI is configured to listed to channel 2. This can be changed in the code.
- 1 : Playback direction, note larger than 63 = forward, under 63 = reverse
- 2 : Master velocity, can be used to turn up/down sample volume if digital clipping occurs
- 3 : Reverb Mix
- 4 : Reverb Size