ESP32 Audio I2S FFT db

we have esp32 and microphones : mems inmp441 and/or SPH0645 and/or Sipeed. Communication channel is I2S and adc(with ads1115).need code to capture the sound ( prefer https://github.com/pschatzmann/arduino-audio-tools ) and send them via bluetooth / wifi to browser (baby monitor) or save to sd cards. log time and frequencies from several microphones at the same time. also, Sound Level Meter (https://hackaday.io/project/166867-esp32-i2s-slm).