iir1
A high-performance, header-only C++ library for realtime IIR digital signal processing with Butterworth, Chebyshev, and RBJ filters.
What is iir1?
IIR1 is a C++ library for infinite impulse response (IIR) digital signal processing, providing realtime sample-by-sample filtering. It implements common filter types like Butterworth, Chebyshev, and RBJ filters for lowpass, highpass, bandpass, and bandstop applications. The library is designed for high performance and memory safety, using template-based header-only code to avoid runtime allocations.
Developers and engineers working on realtime DSP applications, such as audio processing, sensor data filtering, embedded systems, and scientific computing where low-latency filtering is required.
IIR1 offers a combination of realtime performance, memory safety, and ease of integration through its header-only design. Unlike many DSP libraries, it avoids dynamic memory allocation entirely, making it suitable for safety-critical and embedded environments while supporting cross-platform development.
Overview
DSP IIR realtime filter library written in C++
Use Cases
Best For
- Realtime audio filtering in C++ applications
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