// Microphone capture (ES7210 over I2S) and WAV recording to the microSD card.
#pragma once
#include <Arduino.h>

bool audioBegin();                       // configure codec + I2S, start the capture task
bool recorderStart(const char *path);    // open WAV file and start capturing
void recorderService();                  // call often from loop(): drains audio to SD
bool recorderStop();                     // finish header, close file
bool recorderActive();
uint32_t recorderSeconds();

// Prints each microphone's RMS and peak level (dBFS) over `ms` milliseconds.
void audioLevelReport(uint32_t ms);

// Fills a 44-byte header for a 16 kHz mono 16-bit WAV with dataBytes of PCM.
void wavHeader(uint8_t h[44], uint32_t dataBytes);