ref: c3f41731e3e7f00a1c32c7ad1ff5a04bdffd305c
parent: bccac6b94342b09e0fb159148496c9a818a4fb35
author: Paul Brossier <piem@piem.org>
date: Fri Sep 25 02:58:40 EDT 2009
tests/src/test-phasevoc-jack.c: update to also test midi ports and make funny noises
--- a/tests/src/test-phasevoc-jack.c
+++ b/tests/src/test-phasevoc-jack.c
@@ -1,17 +1,23 @@
-/* test sample for phase vocoder
+/** Test for phase vocoder in jack
*
- * this program should start correctly using JACK_START_SERVER=true and
- * reconstruct each audio input frame perfectly on the corresponding input with
- * a delay equal to the window size, hop_s.
+ * This program should start correctly, when jackd is started or when
+ * using JACK_START_SERVER=true and reconstruct each audio input channel
+ * on the corresponding output channel with some strange effects and a
+ * delay equal to the hop size (hop_s).
+ *
*/
-#include <unistd.h> /* pause() or sleep() */
+#include <unistd.h> /* sleep() */
#include <aubio.h>
#include <aubioext.h>
-uint_t win_s = 32; /* window size */
-uint_t hop_s = 8; /* hop size */
-uint_t channels = 4; /* number of channels */
+uint_t testing = 1; /* change this to 1 to listen */
+
+uint_t win_s = 512;/* window size */
+uint_t hop_s = 128;/* hop size */
+uint_t channels = 2; /* number of audio channels */
+uint_t midiin = 4; /* number of midi input channels */
+uint_t midiout = 2; /* number of midi output channels */
uint_t pos = 0; /* frames%dspblocksize for jack loop */
fvec_t * in;
@@ -20,10 +26,6 @@
aubio_pvoc_t * pv;
-#ifdef HAVE_JACK
-aubio_jack_t * jack_setup;
-#endif
-
int aubio_process(float **input, float **output, int nframes);
int main(){@@ -33,20 +35,17 @@
out = new_fvec (hop_s, channels); /* output buffer */
/* allocate fft and other memory space */
pv = new_aubio_pvoc(win_s,hop_s,channels);
- /* fill input with some data */
- printf("initialised\n");- /* execute stft */
- aubio_pvoc_do (pv,in,fftgrain);
- printf("computed forward\n");- /* execute inverse fourier transform */
- aubio_pvoc_rdo(pv,fftgrain,out);
- printf("computed backard\n");#ifdef HAVE_JACK
- jack_setup = new_aubio_jack(channels, channels,
- (aubio_process_func_t)aubio_process);
+ aubio_jack_t * jack_setup;
+ jack_setup = new_aubio_jack(channels, channels,
+ midiin, midiout,
+ (aubio_process_func_t)aubio_process);
aubio_jack_activate(jack_setup);
- sleep(10); //pause(); /* enter main jack loop */
+ /* stay in main jack loop for 1 seconds only */
+ do {+ sleep(1);
+ } while(testing);
aubio_jack_close(jack_setup);
#endif
@@ -55,7 +54,6 @@
del_fvec(in);
del_fvec(out);
aubio_cleanup();
- printf("memory freed\n");return 0;
}
@@ -73,8 +71,14 @@
if (pos == hop_s-1) {/* block loop */
aubio_pvoc_do (pv,in, fftgrain);
- //for (i=0;i<fftgrain->length;i++) fftgrain->phas[0][i] *= 2.;
- //for (i=0;i<fftgrain->length;i++) fftgrain->phas[0][i] = 0.;
+ // zero phases of first channel
+ for (i=0;i<fftgrain->length;i++) fftgrain->phas[0][i] = 0.;
+ // double phases of second channel
+ for (i=0;i<fftgrain->length;i++) {+ fftgrain->phas[1][i] =
+ aubio_unwrap2pi (fftgrain->phas[1][i] * 2.);
+ }
+ // copy second channel to third one
aubio_pvoc_rdo(pv,fftgrain,out);
pos = -1;
}