import { STT } from '../../agents/providers.js';
/**
 * Configuration options for the Gladia speech-to-text (STT) provider.
 *
 * All fields are optional; unspecified values fall back to the defaults
 * noted on each field.
 */
export type GladiaSTTOptions = {
    /**
     * Gladia API key used to authenticate requests.
     * Defaults to the `GLADIA_API_KEY` environment variable, or `null` if unset.
     */
    apiKey?: string | null;
    /**
     * Gladia transcription model to use.
     * @defaultValue `'solaria-1'`
     */
    model?: string;
    /**
     * Preferred transcription language(s) as language codes/names. Only the
     * first entry is used to select the active language. When empty or omitted,
     * the language defaults to `'english'`.
     */
    languages?: string[] | null;
    /**
     * Enable automatic detection and switching between languages within a single
     * stream (multilingual audio).
     */
    codeSwitching?: boolean;
    /**
     * Sample rate, in Hz, of the audio fed into the provider.
     */
    inputSampleRate?: number;
    /**
     * Sample rate, in Hz, used for the transcription stream. This value is also
     * used as the effective sample rate.
     * @defaultValue `16000`
     */
    outputSampleRate?: number;
    /**
     * Audio encoding format of the input stream (e.g. PCM encodings).
     */
    encoding?: string;
    /**
     * Bit depth of the input audio samples (e.g. `16`).
     */
    bitDepth?: number;
    /**
     * Number of audio channels in the input stream (e.g. `1` for mono).
     */
    channels?: number;
    /**
     * Whether to emit interim/partial transcripts as audio is still being
     * processed, in addition to final transcripts.
     */
    receivePartialTranscripts?: boolean;
};
declare class GladiaSTTImpl extends STT {
    static readonly displayName = "GladiaSTT";
    _providerName: string;
    apiKey: string | null;
    model: string;
    language: string;
    sampleRate: number;
    constructor(opts?: GladiaSTTOptions);
    getRuntimeConfig(): Record<string, any>;
}
/** Instance type of a configured Gladia STT provider. */
export type GladiaSTT = GladiaSTTImpl;
/**
 * Gladia speech-to-text (STT) provider.
 *
 * @param opts - Provider configuration; see {@link GladiaSTTOptions}.
 * @returns A configured Gladia STT provider instance.
 */
export declare const GladiaSTT: (opts?: GladiaSTTOptions) => GladiaSTT;
export {};