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Psychoacoustic terminal spectrum visualizer (uses mel-scale FFT, A-weighted energy, adaptive range tracking & spring physics)

33 starsRust

Lookas – Terminal audio visualizer that's aligned for human perception

by rccyx·Apr 15, 2026·2 points·1 comment
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AI Analysis

●●SolidWizardryNiche Gem

Mel-scale FFT with spring-damper physics makes terminal visualizer actually match human hearing.

Strengths
  • •Mel-scale filterbank aligns frequency bins to human loudness perception instead of linear spacing
  • •Spring-damper animation model creates fluid motion rather than twitchy raw amplitude changes
  • •Percentile-based dynamic range tracking with noise gate suppresses background hiss continuously
Weaknesses
  • •Linux-only limits audience; no macOS or Windows support mentioned
  • •Terminal visualizer is inherently a novelty with limited practical utility
Target Audience

Linux developers, terminal enthusiasts, audio engineers

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cava · ncmpcpp · cmus

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