e_fft_utilities.h File Reference

Some fft features. More...

Functions
void	e_fast_copy (int *in_array, int *out_array, int size)
	Copy an array to an other array, using REPEAT instruction.
void	e_subtract_mean (int *array, int size, int log2size)
	Substract the mean from the samples of the array (-> produce zero-mean samples).

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Detailed Description

Some fft features.

Here you have two functions that are really usefull to work with the FFT

Author:

Code & doc: Jonathan Besuchet

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Function Documentation

void e_fast_copy	(	int *	in_array,
		int *	out_array,
		int	size
	)

Copy an array to an other array, using REPEAT instruction.

Parameters:

	in_array	The array from which you want to copy
	out_array	The destination array
	size	The number of element you want to copy

void e_subtract_mean	(	int *	array,
		int	size,
		int	log2size
	)

Substract the mean from the samples of the array (-> produce zero-mean samples).

Parameters:

	array	The array that you want to produce zero-mean samples
	size	The size of the array
	log2size	The log in base 2 of the size

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