Version 4.2.0

This commit is contained in:
Gary Scavone
2009-03-24 23:02:14 -04:00
committed by Stephen Sinclair
parent cf06b7598b
commit a6381b9d38
281 changed files with 17152 additions and 12000 deletions

View File

@@ -8,63 +8,7 @@ Multi-channel support for realtime audio input and output is dependent on the au
The following example demonstrates the use of the WvOut class for creating a four channel, 16-bit AIFF formatted audio file. We will use four sinewaves of different frequencies for the first two seconds and then a single sinewave for the last two seconds.
\code
// foursine.cpp
#include "WaveLoop.h"
#include "WvOut.h"
int main()
{
// Set the global sample rate before creating class instances.
Stk::setSampleRate( 44100.0 );
int i, j;
WvOut *output = 0;
WaveLoop *inputs[4];
for ( i=0; i<4; i++ ) inputs[i] = 0;
// Define and load the sine waves
try {
for ( i=0; i<4; i++ ) {
inputs[i] = new WaveLoop( "rawwaves/sinewave.raw", TRUE );
inputs[i]->setFrequency( 220.0 * (i+1) );
}
}
catch (StkError &) {
goto cleanup;
}
// Define and open a 16-bit, four-channel AIFF formatted output file
try {
output = new WvOut( "foursine.aif", 4, WvOut::WVOUT_AIF, Stk::STK_SINT16 );
}
catch (StkError &) {
goto cleanup;
}
// Write two seconds of four sines to the output file
MY_FLOAT frame[4];
for ( j=0; j<88200; j++ ) {
for ( i=0; i<4; i++ )
frame[i] = inputs[i]->tick();
output->tickFrame( frame );
}
// Now write the first sine to all four channels for two seconds
for ( j=0; j<88200; j++ ) {
output->tick( inputs[0]->tick() );
}
cleanup:
for ( i=0; i<4; i++ ) delete inputs[i];
delete output;
return 0;
}
\endcode
\include foursine.cpp
[<A HREF="polyvoices.html">Next tutorial</A>] &nbsp; [<A HREF="tutorial.html">Main tutorial page</A>]
*/