patest_leftright.c File Reference

Play different tone sine waves that alternate between left and right channel. More...

#include <stdio.h>
#include <math.h>
#include "portaudio.h"

Data Structures
struct	paTestData

Macros
#define	NUM_SECONDS   (8)
#define	SAMPLE_RATE   (44100)
#define	FRAMES_PER_BUFFER   (512)
#define	M_PI   (3.14159265)
#define	TABLE_SIZE   (200)
#define	BALANCE_DELTA   (0.001f)

Functions
int	main (void)

Detailed Description

Play different tone sine waves that alternate between left and right channel.

The low tone should be on the left channel.

Author

Ross Bencina rossb.nosp@m.@aud.nosp@m.iomul.nosp@m.ch.c.nosp@m.om

Phil Burk philb.nosp@m.urk@.nosp@m.softs.nosp@m.ynth.nosp@m..com

Macro Definition Documentation

BALANCE_DELTA

#define BALANCE_DELTA   (0.001f)

FRAMES_PER_BUFFER

#define FRAMES_PER_BUFFER   (512)

Referenced by main().

M_PI

#define M_PI   (3.14159265)

Referenced by main().

NUM_SECONDS

#define NUM_SECONDS   (8)

SAMPLE_RATE

#define SAMPLE_RATE   (44100)

Referenced by main().

TABLE_SIZE

#define TABLE_SIZE   (200)

Referenced by main().

Function Documentation

main()

int main

(

void

)

References PaStreamParameters::channelCount, paTestData::currentBalance, PaDeviceInfo::defaultLowOutputLatency, PaStreamParameters::device, FRAMES_PER_BUFFER, PaStreamParameters::hostApiSpecificStreamInfo, paTestData::left_phase, M_PI, Pa_CloseStream(), Pa_GetDefaultOutputDevice(), Pa_GetDeviceInfo(), Pa_GetErrorText(), Pa_Initialize(), Pa_OpenStream(), Pa_Sleep(), Pa_StartStream(), Pa_StopStream(), Pa_Terminate(), paClipOff, paFloat32, paNoDevice, paNoError, paTestData::right_phase, SAMPLE_RATE, PaStreamParameters::sampleFormat, paTestData::sine, PaStreamParameters::suggestedLatency, TABLE_SIZE, and paTestData::targetBalance.