murmuraba/dist/vad/algorithms/zcr-vad.d.ts

Real-time audio noise reduction with advanced chunked processing for web applications

/**
 * Zero-Crossing Rate based Voice Activity Detection
 */
export declare class ZCRVAD {
    private previousSample;
    /**
     * Calculate zero-crossing rate of audio frame
     */
    calculateZCR(frame: Float32Array): number;
    /**
     * Detect voice activity based on ZCR
     * Lower ZCR typically indicates voiced speech
     * Higher ZCR indicates unvoiced speech or noise
     */
    detect(frame: Float32Array): number;
    /**
     * Get ZCR classification
     */
    classify(zcr: number): string;
    /**
     * Reset the detector state
     */
    reset(): void;
}
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