patest_sine_formats.c File Reference

Play a sine wave for several seconds. Test various data formats. More...

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

Data Structures
struct	paTestData

Macros
#define	NUM_SECONDS   (10)
#define	SAMPLE_RATE   (44100)
#define	FRAMES_PER_BUFFER   (512)
#define	LEFT_FREQ   (SAMPLE_RATE/256.0) /* So we hit 1.0 */
#define	RIGHT_FREQ   (500.0)
#define	AMPLITUDE   (1.0)
#define	TEST_UINT8   (0)
#define	TEST_INT8   (0)
#define	TEST_INT16   (1)
#define	TEST_FLOAT32   (0)
#define	TEST_FORMAT   paInt16
#define	SAMPLE_ZERO   (0)
#define	DOUBLE_TO_SAMPLE(x)   (SAMPLE_ZERO + (SAMPLE_t)(32767 * (x)))
#define	FORMAT_NAME   "Signed 16 Bit"
#define	M_PI   (3.14159265)

Typedefs
typedef short	SAMPLE_t

Functions
int	main (void)

Detailed Description

Play a sine wave for several seconds. Test various data formats.

Author

Phil Burk

Macro Definition Documentation

#define AMPLITUDE   (1.0)

#define DOUBLE_TO_SAMPLE

(

x

)

(SAMPLE_ZERO + (SAMPLE_t)(32767 * (x)))

#define FORMAT_NAME   "Signed 16 Bit"

#define FRAMES_PER_BUFFER   (512)

#define LEFT_FREQ   (SAMPLE_RATE/256.0) /* So we hit 1.0 */

#define M_PI   (3.14159265)

#define NUM_SECONDS   (10)

#define RIGHT_FREQ   (500.0)

#define SAMPLE_RATE   (44100)

#define SAMPLE_ZERO   (0)

#define TEST_FLOAT32   (0)

#define TEST_FORMAT   paInt16

#define TEST_INT16   (1)

#define TEST_INT8   (0)

#define TEST_UINT8   (0)

Typedef Documentation

typedef short SAMPLE_t

Function Documentation

int main

(

void

)