noise.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <memory.h>
#include "spandsp/telephony.h"
#include "spandsp/dc_restore.h"
#include "spandsp/noise.h"

Functions
int16_t	noise (noise_state_t *s)
	Generate a sample of audio noise.
noise_state_t *	noise_init_dbm0 (noise_state_t *s, int seed, float level, int class_of_noise, int quality)
	Initialise an audio noise generator.
noise_state_t *	noise_init_dbov (noise_state_t *s, int seed, float level, int class_of_noise, int quality)

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Detailed Description

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Function Documentation

int16_t noise (  noise_state_t *  s  )

Generate a sample of audio noise. Generate a sample of audio noise. Parameters: s  The noise generator context. Returns: The generated sample.

noise_state_t* noise_init_dbm0 (  noise_state_t *  s, int  seed, float  level, int  class_of_noise, int  quality )

Initialise an audio noise generator. Initialise an audio noise generator. Parameters: s  The noise generator context. seed  A seed for the underlying random number generator. level  The noise power level in dBmO. class_of_noise  The class of noise (e.g. AWGN). quality  A parameter which permits speed and accuracy of the noise generation to be adjusted. Returns: A pointer to the noise generator context.

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