Sample sets?

jrp · July 28, 2017, 6:44pm

Someone over at the patchblock site (sliderule) managed to squeeze code blocks of samples into the saved patches. Is sthg. like this thinkable/manageable with the OWl as well? What could be a roadmap?

Here’s one of Sliderule’s original posts - this also contains Python code to generate 8bit samples further below in the thread.

Anyone?

manwithfeathers · July 28, 2017, 6:44pm

I’ve just posted a patch which lets you record and store 100ms of audio on your computer (in Pure Data) and retrigger from the OWL

https://hoxtonowl.com/patch-library/patch/Desktop_Sampler/
Need to experiment with more / longer samples! Let me know if you’re able to do anything with it!

Adam

mars · July 28, 2017, 6:44pm

Yes I made a proof of concept sampler which embeds a short 32-bit sample.
I wasn’t sure how to publish it since you need a small utility to make the sample table.

The total size limit on a program is 64kB, so only short samples work this way.
Apparently you can also embed short samples in Pd patches using the array object.

In other news, I’m working on a storage system for the embedded flash memory which will allow you to save and load resources such as samples. I can’t promise when it will be ready, but it’s on its way!

mars · July 28, 2017, 6:44pm

Here’s the simple sampler: https://hoxtonowl.com/patch-library/patch/Poly_Sampler/

The samples are 32bit floats in a C array created with this utility:

github.com

marsus/MyPatches/blob/master/ir/wav2float.c

#include <stdio.h>
#include <stdlib.h>
#include <sndfile.h>
/*
  compile with:
  gcc wav2float.c -o wav2float  -lsndfile
  run with:
  ./wav2float sample.wav foobar 512 1 > sample.h
  (makes a float array named 'foobar' with the first 512 samples, 1 channel of sample.wav)
*/
int main(int argc, char* argv[])
{
  SNDFILE *sf;
  SF_INFO info;
  int num;
  float *buf;
  int channels;
  int i, j;
  char* filename;
  char* varname;

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