ESP32-S3 ADF Voip Example Port I2S1 Not Working for Microphone

[newguy001]

AUDIO DEV BOARD: ESP32-S3-Korvo-2 V3.0
ESP IDF 4.4
I want to use I2S1 for VOIP Example here: https://github.com/espressif/esp-adf/bl ... voip_app.c

The only change I made in the example is as follows:

Code: voip_app.c Select all

.....

#define I2S1_CHANNELS       I2S_CHANNEL_FMT_ONLY_LEFT

.....

int ret = i2s_write_expand(I2S_NUM_1, buf, len, 16, I2S_BITS, &bytes_write, wait_time);

......

i2s_driver_init(I2S_NUM_1, I2S1_CHANNELS, I2S_BITS);

.....

 audio_player_int_tone_init(I2S_SAMPLE_RATE, I2S1_CHANNELS, I2S_BITS);

....

https://github.com/espressif/esp-adf/bl ... s_config.c

Code: board_pins_config.c Select all

.....

esp_err_t get_i2s_pins(i2s_port_t port, i2s_pin_config_t *i2s_config)

{

    AUDIO_NULL_CHECK(TAG, i2s_config, return ESP_FAIL);

    if (port == I2S_NUM_0) {

        i2s_config->bck_io_num = -1;

        i2s_config->ws_io_num = -1;

        i2s_config->data_out_num = -1;

        i2s_config->data_in_num = -1;

        i2s_config->mck_io_num = -1;

    } else if (port == I2S_NUM_1) {

        i2s_config-> bck_io_num = GPIO_NUM_9;

        i2s_config->ws_io_num = GPIO_NUM_45;

        i2s_config->data_out_num = GPIO_NUM_8;

        i2s_config->data_in_num = GPIO_NUM_10;

        i2s_config->mck_io_num = GPIO_NUM_16;

    } else {

        memset(i2s_config, -1, sizeof(i2s_pin_config_t));

        ESP_LOGE(TAG, "i2s port %d is not supported", port);

        return ESP_FAIL;

    }



    return ESP_OK;

}

PROBLEM
The audio from speaker is working; however, the two microphones on the ESP32-S3-Korvo-2 V3.0, are not sending any voice i.e microphones stopped working.
When I revert back my changes to I2S0, everything is working.

Really need little guidance here!!!

Thanks

[tempo.tian]

Have you change the code below:
int ret = i2s_read(CODEC_ADC_I2S_PORT, buf, len, &bytes_read, wait_time);
changed to
int ret = i2s_read(1, buf, len, &bytes_read, wait_time);

For that record and playback use same I2S.

[newguy001]

Thanks a lot . Now both Mic and Speaker are working!