murmuraba/dist/services/gain-service.d.ts

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

/**
 * Optimized Gain Management Service
 * Reduces re-renders and provides centralized gain control
 */
export interface GainServiceOptions {
    initialGain?: number;
    throttleMs?: number;
    enableSmoothing?: boolean;
    smoothingTimeConstant?: number;
}
export declare class GainService {
    private gainController;
    private gainNode?;
    private audioContext?;
    private throttleTimer?;
    private pendingGain?;
    private readonly throttleMs;
    private readonly enableSmoothing;
    private readonly smoothingTimeConstant;
    private updateListeners;
    constructor(options?: GainServiceOptions);
    /**
     * Initialize the service with an audio context
     */
    initialize(audioContext: AudioContext): void;
    /**
     * Get the gain node for audio graph connection
     */
    getGainNode(): GainNode | undefined;
    /**
     * Set gain with throttling to prevent excessive updates
     */
    setGain(gain: number): void;
    /**
     * Get current gain value
     */
    getCurrentGain(): number;
    /**
     * Apply gain preset
     */
    applyPreset(preset: 'LOW' | 'NORMAL' | 'HIGH' | 'BOOST'): void;
    /**
     * Get gain description for UI
     */
    getDescription(): string;
    /**
     * Get gain in decibels for display
     */
    getDbValue(): number;
    /**
     * Subscribe to gain changes
     */
    onGainChange(callback: (gain: number) => void): () => void;
    /**
     * Cleanup resources
     */
    destroy(): void;
    private createGainNode;
    private applyPendingGain;
    private notifyListeners;
}
export declare function getGainService(options?: GainServiceOptions): GainService;
export declare function destroyGainService(): void;
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