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Real-time audio DSP in pure Swift. Zero dependencies.

20 starsSwift

SignalKit: Real-time audio DSP in pure Swift, zero dependencies

by CastorLogic·Mar 3, 2026·2 points·1 comment
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AI Analysis

●●●BangerWizardryNiche Gem

Real-time audio DSP in pure Swift, zero allocs in render threads—rare and performant.

Strengths
  • •Zero heap allocations in audio callback paths is genuinely rare in Swift—uses vDSP, OSMemoryBarrier, lock-free ring buffer
  • •Multi-processor suite (EQ, compressor, limiter, stereo, loudness meter) covers real production needs
  • •ITU-R BS.1770-4 LUFS metering with optional AGC is broadcast-grade, not typical in open-source SDKs
Weaknesses
  • •Apple platforms only—no Windows/Linux, limits audience compared to JUCE or Rust alternatives
  • •Twelve stars on GitHub suggests minimal adoption; unclear if real-world production use exists yet
Target Audience

iOS/macOS audio engineers, music production software, real-time audio plugin developers

Similar To

JUCE · Web Audio API · Rust cpal

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