ESP32 Forum

Posted: **Mon Mar 03, 2025 9:12 pm**

Hello,

I am trying to understand audio input channels on the Korvo 2 V3.1. On the setup for TDM, shown in skainet example, reference below. Which input is from mic at u32 and u31? Which is aec channel?

ES7120_SEL_MIC1=u23 mic, u31 mic or aec?
ES7120_SEL_MIC2=u23 mic, u31 mic or aec?
ES7120_SEL_MIC3=u23 mic, u31 mic or aec?
ES7120_SEL_MIC4=u23 mic, u31 mic or aec?

https://github.com/espressif/esp-skaine ... sp_board.c

Code: Untitled.c Select all

 audio_codec_i2c_cfg_t i2c_cfg = {.addr = ES7210_CODEC_DEFAULT_ADDR};

    record_ctrl_if = audio_codec_new_i2c_ctrl(&i2c_cfg);

    // New input codec interface

    es7210_codec_cfg_t es7210_cfg = {

        .ctrl_if = record_ctrl_if,

        .mic_selected = ES7120_SEL_MIC1 | ES7120_SEL_MIC2 | ES7120_SEL_MIC3 | ES7120_SEL_MIC4,

    };

Thanks

ESP32 Forum

Korvo 2 v3.1 audio channels ES7120_SEL_MIC1,2,3,4

Korvo 2 v3.1 audio channels ES7120_SEL_MIC1,2,3,4