@promptbook/openai/umd/src/speech-recognition/OpenAiSpeechRecognition.d.ts

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import type { SpeechRecognition, SpeechRecognitionEvent, SpeechRecognitionStartOptions, SpeechRecognitionState } from '../types/SpeechRecognition';
/**
 * Options for OpenAiSpeechRecognition
 */
export type OpenAiSpeechRecognitionOptions = {
    /**
     * OpenAI API base URL or proxy endpoint
     * @default '/api/openai/v1'
     */
    readonly baseUrl?: string;
};
/**
 * Speech recognition using OpenAI Whisper API to transcribe audio into text
 *
 * @private because it requires server-client communication with a proxy endpoint
 *
 * Note: This implementation uses a server-side proxy to avoid exposing the OpenAI API key on the client.
 */
export declare class OpenAiSpeechRecognition implements SpeechRecognition {
    private readonly options;
    private mediaRecorder;
    private audioContext;
    private analyser;
    private silenceTimeout;
    private audioChunks;
    private callbacks;
    private _state;
    get state(): SpeechRecognitionState;
    constructor(options?: OpenAiSpeechRecognitionOptions);
    $start(options?: SpeechRecognitionStartOptions): Promise<void>;
    $stop(): void;
    private transcribe;
    subscribe(callback: (event: SpeechRecognitionEvent) => void): () => void;
    private emit;
}