[sdiy] Audio playback chips as sample players for drums

[Jean-Pierre Desrochers]

Jamie Robertson’s WAV Trigger mini sampler..

Can play up to 14 simultaneous .WAV files (16bits uncompressed stereo PSM)

Low latency (8 msec)..

Can be played via :

 

*	MIDI serial protocol (TTL levels inputs)
*	Specific 57.6kbps serial protocol (TTL levels inputs)
*	using 16 digital inputs (TTL levels inputs)

 

https://www.robertsonics.com/s/WT_UserGuide_20230602.pdf

 

https://www.robertsonics.com/wav-trigger

https://www.youtube.com/watch?v=UUkcs_XL5x0 <https://www.youtube.com/watch?v=UUkcs_XL5x0&t=65s> &t=65s

 

I use this board to actually play sampled Hammond organ pedal keys
in my Hammond organ RT Pedal SOLO simulator box.

All the played files are called using a PIC micro that sends 57.6kbps commands
to the WAV Trigger after reception of MIDI information (31.25kbps).

 

This board is AWESOME !!

 





 

De : Synth-diy <synth-diy-bounces at synth-diy.org> De la part de Scott Bernardi via Synth-diy
Envoyé : 23 juillet 2025 14:59
À : SDIY List <synth-diy at synth-diy.org>
Objet : [sdiy] Audio playback chips as sample players for drums

 

I've seen a number of these sample/wave/mp3 players that use either Flash memory or SD cards for storing the files. They look tempting to create a sample player module. Has anybody played with these? Is the latency acceptable enough to do drum samples?  How much latency can you have before it becomes noticeable?

Something with a minimum of 8 triggers to kick off  different samples that can be played simultaneously.  I've seen some where you give the files a number, and a trigger can be associated with a numbered file.  With a microcontroller you could have an interface to pick and audition the samples you associate with the triggers.

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