libspark is a lightweight, high-performance C library for fundamental Digital Signal Processing (DSP) operations. It provides portable, SIMD-aware kernels intended for real-time audio and signal processing applications, from embedded devices to desktop software.

⚠️ Work in progress: SPARK is still in early alpha. APIs may change.

• Speed first: Kernels are hand-tuned in C with optional SIMD (SSE/AVX/NEON) optimizations.
• Minimalism: No external dependencies, no hidden runtime. Just DSP building blocks.
• Portability: Written in C99 for broad compiler and platform support.
• Modularity: Focused, composable routines you can drop into any project.

• Filter primitives: biquads, EQ sections, and related math.
• Buffer utilities: memory-safe operations for interleaved, planar, and pointer-to-pointer layouts.
• Cross-platform: Linux, macOS, and Windows (with Meson toolchain).
• Permissive license: MIT-licensed for use in both open-source and proprietary projects.

• C99-compatible compiler (GCC, Clang, MSVC)
• Meson and Ninja

# 1. Clone the repo
git clone https://github.com/your-org/libspark.git
cd libspark

# 2. Configure
meson setup builddir

# 3. Build
meson compile -C builddir

# 4. Install (optional)
meson install -C builddir

Released under the MIT License. You are free to use libspark in commercial, open-source, and academic projects.

• Biquad filter kernels
• SIMD multi-channel EQ
• Buffer utilities for interleaved/planar layouts
• FFT wrappers and convolution primitives
• Continuous integration across Linux/macOS/Windows