AEC Application Functions

[English]

APP_AEC API Brief

Application	Brief
app_aec_init()	application for AEC initialize
app_aec_deinit()	application for reset app_aec_env environment variable
app_aec_process_handle()	handle function of process AEC data
app_aec_fill_rin_buf()	fill output PCM data or rx_sco_data to p_aec_env->aec_rin_rb
app_aec_read_out_buf()	read out from p_aec_env->aec_out_rb
app_aec_get_fill_buffer_size()	get filled size of app_aec_env.aec_out_rb ring buffer

APP_AEC API Reference

Header File

• common/app_audio/app_aec.h

Functions

void app_aec_init(int32_t sample_rate, uint32_t adc_enable_ch)

application for AEC initialize

参数:

• sample_rate – [in] microphone sample rate(etc 16000,8000)

• adc_enable_ch – [in] microphone channel aec(acoustic echo cancellation) enable

返回:

N/A

void app_aec_deinit(void)

application for reset app_aec_env environment variable

返回:

N/A

void app_aec_process_handle(void)

handle function of process AEC data

返回:

N/A

void app_aec_fill_rin_buf(uint8_t *buff, uint32_t len)

fill output PCM data or rx_sco_data to p_aec_env->aec_rin_rb

参数:

• buff – [in] buffer to be write from

• len – [in] write size

返回:

N/A

uint32_t app_aec_read_out_buf(uint8_t *buff, uint32_t len)

read out from p_aec_env->aec_out_rb

Data produced after the AEC to write p_aec_env->aec_out_rb ring buffer

参数:

• buff – [out] buffer to be read into

• len – [out] read size

返回:

actually read size

uint32_t app_aec_get_fill_buffer_size(void)

get filled size of app_aec_env.aec_out_rb ring buffer

返回:

the filled size of ring buffer

Structures

struct app_aec_env_t

Macros

AEC_ROM

AEC_FLASH

AEC_MIX

AEC_VER

AEC_FRAME_LEN

TEST1_START

TEST1_STOP

TEST2_START

TEST2_STOP