AXGetLpfCoefs

Syntax

#include <revolution/ax.h>

void AXGetLpfCoefs(u16 freq, u16 *a0, u16 *b0);

Arguments

freq	Cut-off frequency of the low-pass filter in Hertz (Hz), must be within the range 0 <= freq <= 16,000.
a0	Pointer to the coefficient a0.
b0	Pointer to the coefficient b0.

Return Values

None.

Description

AXGetLpfCoefs gets the values a0 and b0. a0 and b0 can be passed to the AXSetVoiceLpfCoefs function or used as low-pass filter coefficients when setting the AXPBLPF structure.

AXGetLpfCoefs does the same calculation that is shown in the AXPBLPF structure page.

Revision History

2006/03/01 Initial version.