ref: a9c33a293278a0b6bc3b1122d331469bc1601865
dir: /tests/src/synth/test-wavetable.c/
#include <aubio.h> #include "utils_tests.h" int main (int argc, char **argv) { sint_t err = 0; if (argc < 2) { err = 2; PRINT_ERR("not enough arguments\n"); PRINT_MSG("usage: %s <output_path> [freq] [samplerate]\n", argv[0]); return err; } uint_t samplerate = 44100; // default is the samplerate of input_path uint_t hop_size = 256; smpl_t freq = 440.; char_t *sink_path = argv[1]; if ( argc == 4 ) samplerate = atoi(argv[3]); if ( argc == 3 ) freq = atof(argv[2]); fvec_t *vec = new_fvec(hop_size); aubio_sink_t *sink = new_aubio_sink(sink_path, samplerate); aubio_wavetable_t * wavetable = new_aubio_wavetable (samplerate, hop_size); // 2 seconds duration, in samples uint_t duration = 2 * samplerate; uint_t n_frames = 0; uint_t write = 0; aubio_wavetable_play (wavetable); aubio_wavetable_set_freq ( wavetable, freq ); uint_t region = 0; do { if ( n_frames > duration / 3 && region < 1) { aubio_wavetable_stop (wavetable); region++; } if ( n_frames > 2 * duration / 3 && region < 2) { aubio_wavetable_play (wavetable); aubio_wavetable_set_freq ( wavetable, freq / 2.); region++; } if (duration - n_frames < hop_size * 2 ) { aubio_wavetable_stop( wavetable ); } if (duration - n_frames < hop_size ) { write = duration - n_frames; } else { write = hop_size; } aubio_wavetable_do (wavetable, vec, vec); aubio_sink_do(sink, vec, write); n_frames += hop_size; } while ( n_frames <= duration ); del_aubio_wavetable (wavetable); del_aubio_sink(sink); del_fvec(vec); aubio_cleanup(); return 0; }