Audio visualization on LEDs: perceptual models and mathematics https://sudonull.com/audio-visualization-on-leds-perceptual-models-and-mathematics
How mel scale and convolutions solve the pixel poverty problem in audio visualization. Technical details of implementation for embedded systems. Learn the key algorithms.
AGC for Linux ALSA: implementation and setup https://sudonull.com/agc-for-linux-alsa-implementation-and-setup
Implement Automatic Gain Control for volume normalization in VoIP on embedded Linux. Comparison of speex, FFmpeg dynaudnorm and C++20. Low latency, +3% CPU. Instructions for developers.
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.
Zachman Matrix in ERP: structure and examples https://sudonull.com/zachman-matrix-in-erp-structure-and-examples
Study the Zachman matrix for IT architecture of ERP systems. Examples of filling, application in implementation and audit projects. Structure architecture without gaps — for developers and architects.
Windows Kernel Policy: Only WHCP Drivers from 2026 https://sudonull.com/windows-kernel-policy-only-whcp-drivers-from-2026
Microsoft tightens driver trust in Windows 11 and Server 2025 kernel. Rejection of outdated certificates, audit mode, AppLocker. Details of changes for developers and admins — read and prepare.