diff options
Diffstat (limited to 'examples/simpletest')
| -rw-r--r-- | examples/simpletest/simpletest.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/examples/simpletest/simpletest.c b/examples/simpletest/simpletest.c index 14fd6ee..443de22 100644 --- a/examples/simpletest/simpletest.c +++ b/examples/simpletest/simpletest.c @@ -98,6 +98,7 @@ int main(void) double f0 = 0.0; double flux = 0.0; double centroid = 0.0; + double lowest = 0.0; double spectrum[BLOCKSIZE] = {0}; double windowed[BLOCKSIZE] = {0}; double peaks[BLOCKSIZE] = {0}; @@ -109,6 +110,7 @@ int main(void) double argd[4] = {0}; double samplerate = 44100.0; int n; + int rv = XTRACT_SUCCESS; xtract_mel_filter mel_filters; fill_wavetable(344.53125f, NOISE); // 344.53125f = 128 samples @ 44100 Hz @@ -122,6 +124,19 @@ int main(void) xtract[XTRACT_MEAN](wavetable, BLOCKSIZE, NULL, &mean); printf("\nInput mean = %.2f\n\n", mean); /* We expect this to be zero for a square wave */ + /* get the lowest value in the input */ + argd[0] = -.5; + rv = xtract[XTRACT_LOWEST_VALUE](wavetable, BLOCKSIZE, argd, &lowest); + + if (rv == XTRACT_SUCCESS) + { + printf("\nLowest value = %.6f\n\n", lowest); + } + else + { + printf("\nUnable to get lowest value, all values below threshold?\n\n"); + } + exit(0); /* create the window function */ window = xtract_init_window(BLOCKSIZE, XTRACT_HANN); xtract_windowed(wavetable, BLOCKSIZE, window, windowed); |