kaldi-native-fbank

Minimal C23 implementation of Kaldi-style filterbank, MFCC, STFT/ISTFT, and related utilities with a Zig build.

Prerequisites

• zig 0.15.x
• Uses the bundled pocketfft implementation; no external FFT library needed.

Build

• Build the static library and install artifacts to zig-out:
  zig build
• Run the C test executables:
  zig build test
• Run the sample program under examples/:
  zig build run-online_fbank_example

Layout

• Core sources: src/*.c, public headers in include/kaldi-native-fbank
• Examples: examples/*.c
• Zig build script: build.zig (installs kaldi-native-fbank-core, examples, and test binaries)
• Build outputs: zig-out, cache in .zig-cache (both gitignored)