Cortix - Perceptual Audio Spectrum Analyser

A high-performance, perceptually-accurate spectrum analysis library featuring Gammatone filterbanks, multiple frequency scales (Bark, ERB, Mel), and real-time processing capabilities.

Named after the Organ of Corti - the biological spectrum analyser in the cochlea where sound is converted to neural signals.

Quick Start

use cortix::{Analyser, Scale};

// Create analyser with builder pattern
let mut analyser = Analyser::builder()
    .sample_rate(48000.0)
    .bands(40)
    .scale(Scale::ERB)
    .build();

// Process audio and get envelope
let audio = vec![0.0f32; 512];
let envelope = analyser.process(&audio);

// Get dB values
let db = analyser.envelope_db();

Features

• Gammatone Filterbank - Auditory model with true frequency resolution
• Multiple Scales - Bark, ERB, Mel, Log, and Linear frequency spacing
• Real-time Performance - Sub-millisecond latency, efficient per-sample processing
• Perceptually Accurate - Based on auditory neuroscience research

Frequency Scales