SAMD21 + INMP441 MEMS Microphone
Web Serial API
Serial Breath Monitor
Connect your SAMD21 + INMP441 device via USB. The Web Serial API will stream audio data for real-time spectrographic analysis.
Cochleagram (50 Hz - 4 kHz, logarithmic)
Models human auditory perception using gammatone filterbank. Reveals emotional state from breath patterns - calm vs stressed breathing creates distinct spectral fingerprints.