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FFT library — Cooley-Tukey radix-2, real FFT, spectral analysis, STFT, CQT, autocorrelation, YIN pitch, Mel filterbank, MFCC, and Chroma.
Structs§
- Autocorrelation
- Autocorrelation functions and YIN pitch detection.
- Chroma
- Chroma feature — pitch class profile (12 semitone bins).
- Complex32
- 32-bit complex number with full arithmetic.
- Cqt
- Constant-Q Transform — logarithmically-spaced frequency bins.
- Fft
- Cooley-Tukey radix-2 in-place FFT for power-of-2 sizes.
- FftPlan
- A plan produced by
FftPlannerfor a specific transform size. - FftPlanner
- Pre-computes twiddle factors and caches plans by size.
- MelFilterbank
- Mel-scale filterbank for perceptual frequency analysis.
- Mfcc
- Mel-Frequency Cepstral Coefficient computation.
- RealFft
- Optimized FFT for real-valued input using the half-spectrum trick.
- Spectrum
- Post-FFT frequency-domain representation.
- Stft
- Short-Time Fourier Transform: sliding-window analysis and synthesis.
- Stft
Config - Configuration for the STFT.