AXART_LPF

C Specification

#include <revolution.h>
#include <revolution/axart.h>
typedef struct
{
    AXART_ART   art;
    u32         initLPF;

    // runtime user parameters
    
    u32         frequency;
    u32         update;

} AXART_LPF;

Description

AXART_LPF is a data structure used to describe a low pass filter sound articulator. This articulator sets the low pass filter roll off frequency for an AXART_SOUND. Prior to calling AXARTAddArticulator() for the AXART_LPF, the user application must call AXARTInitArtLpf().

Data Member Description
AXART_ART art AXART articulator descriptor maintained by AXART. Do not write to this parameter.
u32 initLPF Structure member flag that indicates the low pass filter was initialized. Do not write to this parameter.
u32 frequency Indexed roll off frequency (from 0 = 16000Hz to 23 = 80Hz). The indexed values are defined in the axart.h header file.
u32 update Must be set to TRUE for updated indexed roll off frequency values to take effect.

See Also

AXARTInitArtLpf
AXARTAddArticulator
AXART_ART
AXART_SOUND

Revision History

2006/03/01 Initial version.

CONFIDENTIAL