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PlatformIO package of the Teensy core framework compatible with GCC 10 & C++20
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framework-arduinoteensy-cxx20/libraries/Audio/examples/Synthesis/WaveformsModulated/myWaveform.ino

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  1. 

  2. const int16_t myWaveform[256] = {

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  6.  19022, 18741, 18486, 18263, 18080, 17942, 17853, 17819, 17841, 17920,

  7.  18058, 18254, 18507, 18813, 19170, 19573, 20017, 20497, 21006, 21538,

  8.  22085, 22642, 23200, 23753, 24294, 24816, 25314, 25781, 26212, 26604,

  9.  26953, 27256, 27511, 27718, 27876, 27986, 28049, 28068, 28047, 27989,

  10.  27899, 27782, 27644, 27490, 27326, 27159, 26996, 26841, 26701, 26582,

  11.  26487, 26423, 26392, 26397, 26441, 26525, 26649, 26812, 27012, 27248,

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  27. -26441,-25403,-24251,-22988,-21620,-20150,-18587,-16939,-15214,-13423,

  28. -11577, -9686, -7763, -5820, -3870, -1926

  29. };

  30. 

  31. /*

  32. #! /usr/bin/perl

  33. $len = 256;

  34. print "const int16_t myWaveform[256] = {\n";

  35. for ($i=0; $i < $len; $i++) {

  36.         $x = $i / $len * 2 * 3.141592654;

  37.         $r = $x - 0.12486762;

  38.         $y = 0.95 * sin($r) + 0.25 * sin($r * 3 + 0.7) + 0.15 * sin($r * 5 - 5.4);

  39.         #print "$x  $y\n";

  40.         $d = sprintf "%.0f", $y * 32767.0;

  41.         printf "%6d", $d + 0;

  42.         print "," if ($i < $len-1);

  43.         print "\n" if ($i % 10) == 9;

  44. }

  45. print "\n" unless ($len % 10) == 9;

  46. print "};\n";

  47. */