pdm_metrics_t Struct Reference

Statistics for one captured PCM window. More...

Data Fields
int32_t	min
	Minimum sample.
int32_t	max
	Maximum sample.
int32_t	mean
	DC mean (near 0 after the HPF).
int32_t	peak
	Peak |sample - mean| (AC peak).
int32_t	rms
	AC RMS about the mean.
uint32_t	n
	Samples analysed.

Detailed Description

Statistics for one captured PCM window.

Definition at line 93 of file main.c.

Field Documentation

max

int32_t pdm_metrics_t::max

Maximum sample.

Definition at line 95 of file main.c.

Referenced by pdm_demo_analyze(), pdm_demo_is_active(), and pdm_demo_publish().

mean

int32_t pdm_metrics_t::mean

DC mean (near 0 after the HPF).

Definition at line 96 of file main.c.

Referenced by pdm_demo_analyze(), and pdm_demo_publish().

min

int32_t pdm_metrics_t::min

Minimum sample.

Definition at line 94 of file main.c.

Referenced by pdm_demo_analyze(), pdm_demo_is_active(), and pdm_demo_publish().

n

uint32_t pdm_metrics_t::n

Samples analysed.

Definition at line 99 of file main.c.

Referenced by pdm_demo_analyze(), and pdm_demo_publish().

peak

int32_t pdm_metrics_t::peak

Peak |sample - mean| (AC peak).

Definition at line 97 of file main.c.

Referenced by pdm_demo_analyze(), and pdm_demo_publish().

rms

int32_t pdm_metrics_t::rms

AC RMS about the mean.

Definition at line 98 of file main.c.

Referenced by main(), pdm_demo_analyze(), pdm_demo_is_active(), and pdm_demo_publish().

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

• examples/ek_ra8d2/hw_validated/hil/pdm_mic_demo/src/main.c