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Change from 22050 to 44100 Hz

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Process audio in a block for better efficiency.
This commit is contained in:
philburk 2002-02-22 22:06:23 +00:00
commit 1dbcc33442
1 changed files with 10 additions and 10 deletions
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20
pablio/test_rw.c
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@ -44,9 +44,10 @@
** full duplex audio (simultaneous record and playback). ** full duplex audio (simultaneous record and playback).
** And some only support full duplex at lower sample rates. ** And some only support full duplex at lower sample rates.
*/ */
#define SAMPLE_RATE (22050) #define SAMPLE_RATE (44100)
#define NUM_SECONDS (15) #define NUM_SECONDS (5)
#define SAMPLES_PER_FRAME (2) #define SAMPLES_PER_FRAME (2)
#define FRAMES_PER_BLOCK (64)
/* Select whether we will use floats or shorts. */ /* Select whether we will use floats or shorts. */
#if 1 #if 1
@ -62,7 +63,7 @@ int main(void);
int main(void) int main(void)
{ {
int i; int i;
SAMPLE samples[SAMPLES_PER_FRAME]; SAMPLE samples[SAMPLES_PER_FRAME * FRAMES_PER_BLOCK];
PaError err; PaError err;
PABLIO_Stream *aStream; PABLIO_Stream *aStream;
@ -75,13 +76,12 @@ int main(void)
if( err != paNoError ) goto error; if( err != paNoError ) goto error;
/* Process samples in the foreground. */ /* Process samples in the foreground. */
for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i++ ) for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
{ {
/* Read one frame of data into sample array from audio input. */ /* Read one block of data into sample array from audio input. */
ReadAudioStream( aStream, samples, 1 ); ReadAudioStream( aStream, samples, FRAMES_PER_BLOCK );
/* Write that same frame of data to output. */ /* Write that same block of data to output. */
/* samples[1] = (i&256) * (1.0f/256.0f); /* sawtooth */ WriteAudioStream( aStream, samples, FRAMES_PER_BLOCK );
WriteAudioStream( aStream, samples, 1 );
} }
CloseAudioStream( aStream ); CloseAudioStream( aStream );