noise.h File Reference

Go to the source code of this file.

Classes
struct	noise_state_t
Enumerations
enum	{ NOISE_CLASS_AWGN = 1, NOISE_CLASS_HOTH }
Functions
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)
int16_t	noise (noise_state_t *s)
	Generate a sample of audio noise.

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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.

References noise_state_t::class_of_noise, noise_state_t::quality, noise_state_t::rms, noise_state_t::rndnum, and noise_state_t::state.

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.