_pdm_hwvad_config Struct Reference

PDM voice activity detector user configuration structure. More...

#include <fsl_pdm.h>

Data Fields
uint8_t	channel
uint8_t	initializeTime
uint8_t	cicOverSampleRate
uint8_t	inputGain
uint32_t	frameTime
pdm_hwvad_hpf_config_t	cutOffFreq
bool	enableFrameEnergy
bool	enablePreFilter

Detailed Description

PDM voice activity detector user configuration structure.

Field Documentation

channel

uint8_t _pdm_hwvad_config::channel

Which channel uses voice activity detector

cicOverSampleRate

uint8_t _pdm_hwvad_config::cicOverSampleRate

CIC filter over sampling rate

cutOffFreq

pdm_hwvad_hpf_config_t _pdm_hwvad_config::cutOffFreq

High pass filter cut off frequency

enableFrameEnergy

bool _pdm_hwvad_config::enableFrameEnergy

If frame energy enabled, true means enable

enablePreFilter

bool _pdm_hwvad_config::enablePreFilter

If pre-filter enabled

frameTime

uint32_t _pdm_hwvad_config::frameTime

Voice activity frame time

initializeTime

uint8_t _pdm_hwvad_config::initializeTime

Number of frames or samples to initialize voice activity detector.

inputGain

uint8_t _pdm_hwvad_config::inputGain

Voice activity detector input gain

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The documentation for this struct was generated from the following file:

• bsps/arm/imxrt/mcux-sdk/drivers/pdm/fsl_pdm.h