iir1 ☆
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Description:
DSP IIR realtime filter library written in C++
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: dsp c-plus-plus audio signal-processing real-time
Install: brew install iir1
About:
Iir1 is a C++ library designed for digital signal processing, providing efficient implementation of infinite impulse response (IIR) filters. It enables developers to apply real-time filtering to audio and sensor data streams with minimal computational overhead. The library is header-only and optimized for embedded systems and high-performance applications.
Key Features:
  • Header-only C++ library
  • Real-time processing capabilities
  • Low-latency and high-efficiency
  • Comprehensive filter types (Butterworth, Chebyshev, etc.)
Use Cases:
  • Audio equalization and effects processing
  • Sensor data smoothing and noise reduction
  • Telecommunications signal conditioning
  • Biomedical signal analysis
Alternatives:
  • DSPFilters – Similar C++ library, but Iir1 is more modern and actively maintained
  • SoX – Command-line tool for audio processing, whereas Iir1 is a programmatic library
Version History
Detected Version Rev Change Commit
Sep 11, 2025 10:51am 0 VERSION_BUMP d3510728
Aug 12, 2024 4:33pm 0 VERSION_BUMP f49e33eb
Jan 7, 2023 8:06pm 0 VERSION_BUMP 944855c1
Jan 7, 2023 8:06pm 0 VERSION_BUMP eb4af693
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