Acoustic Drone Detection on ESP32-S3 https://sudonull.com/acoustic-drone-detection-on-esp32-s3
Implement local quadcopter detection with ESP32 and ICS-43434 microphone. Goertzel algorithm for real-time frequency analysis. Instructions for developers: schematic, calibration, comparison with ML. Start your prototype for 15$.
NPU on MCU for speech: STM32N6 and acoustics https://sudonull.com/npu-on-mcu-for-speech-stm32n6-and-acoustics
Acoustic speech recognition model on STM32N6 with NPU: PER 5.3%, 0.2 W, real time. Comparison, metrics, application for developers. Study the implementation.
Binaural sound from stereo: schematic and implementation https://sudonull.com/binaural-sound-from-stereo-schematic-and-implementation
Set up your stereo system for immersive binaural sound without headphones. Schematics, MK-233 microphones, adaptation for cinema. Instructions for audio developers — test it yourself.
Drums in the studio: MIDI and VST approaches https://sudonull.com/drums-in-the-studio-midi-and-vst-approaches
Setting up drums in a home studio for composers: dead, semi-live, live options. Workflow with Addictive Drums, references and edits. Get organic parts without acoustics — read the guide.