osx_AcousticSL_Handler_t Struct Reference

Library handler. It keeps track of the static parameters and it handles the internal state of the algorithm. More...

#include <osx_acoustic_sl.h>

Data Fields
uint32_t	algorithm
uint32_t	sampling_frequency
uint32_t	channel_number
uint8_t	ptr_M1_channels
uint8_t	ptr_M2_channels
uint8_t	ptr_M3_channels
uint8_t	ptr_M4_channels
uint16_t	M12_distance
uint16_t	M34_distance
uint32_t	internal_memory_size
uint32_t *	pInternalMemory
int16_t	samples_to_process

Detailed Description

Library handler. It keeps track of the static parameters and it handles the internal state of the algorithm.

Field Documentation

uint32_t algorithm

Specifies the algorithm to be used between XCORR and GCC-PHAT. This parameter can be a value of OSX_Acoustic_SL_algorithm_type. Default value is OSX_ACOUSTIC_BF_TYPE_CARDIOID_BASIC

uint32_t channel_number

Specifies the number of channels, can be 2 for 180� estimation, 4 for 360� estimation. Default value is

uint32_t internal_memory_size

Keeps track of the amount of memory required for the current setup. It's filled by the osx_AcousticSL_getMemorySize() function and must be used to allocate the right amount of RAM

uint16_t M12_distance

Distance between Mic1 and Mic2 in decimals of a millimeter. Deafult value is 150.

uint16_t M34_distance

Distance between Mic3 and Mic4 in decimals of a millimeter. Deafult value is 150.

uint32_t* pInternalMemory

Pointer to the memory allocated by the user

uint8_t ptr_M1_channels

Number of channels in the stream of Microphone 1. Deafult value is 1.

uint8_t ptr_M2_channels

Number of channels in the stream of Microphone 2. Deafult value is 1.

uint8_t ptr_M3_channels

Number of channels in the stream of Microphone 3. Deafult value is 1.

uint8_t ptr_M4_channels

Number of channels in the stream of Microphone 4. Deafult value is 1.

int16_t samples_to_process

Specifies the number of samples to be processed at a time

uint32_t sampling_frequency

Specifies the sampling frequency - for future use

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

• D:/Documents/Repositories/DMIC/Private/Fw/OSX_Libraries/Workspace/Middlewares/ST/STM32_OSX_AcousticSL_Library/Inc/osx_acoustic_sl.h