Usage of Seeed Studio XIAO ESP32S3 microphone with arduino-audio-tools

XIAO-sense-audiotools.ino

// Usage of Seeed Studio XIAO ESP32S3 microphone with github.com/pschatzmann/arduino-audio-tools
// https://wiki.seeedstudio.com/xiao_esp32s3_sense_mic/

#include "AudioTools.h"

AudioInfo info(16000, 1, 16);
I2SStream i2sStream; // Access I2S as stream
CsvOutput<int16_t> csvStream(Serial);
StreamCopy copier(csvStream, i2sStream); // copy i2sStream to csvStream

// Arduino Setup
void setup(void) {
    Serial.begin(115200);
    AudioLogger::instance().begin(Serial, AudioLogger::Info);

    auto cfg = i2sStream.defaultConfig(RX_MODE);
    cfg.copyFrom(info);
    cfg.signal_type = PDM;
    cfg.i2s_format = I2S_PCM;    
    cfg.pin_bck = I2S_PIN_NO_CHANGE;
    cfg.pin_ws = 42;
    cfg.pin_data = 41;

    i2sStream.begin(cfg);

    csvStream.begin(info);
}

// Arduino loop - copy data
void loop() {
    copier.copy();
}