import type { TTSProvider } from '@contractspec/lib.contracts-integrations';
export type VoiceIntegrationKey = 'ai-voice.gradium' | 'ai-voice.fal';
export interface VoiceProviderSecrets {
    apiKey: string;
}
export interface VoiceProviderConfig {
    defaultVoiceId?: string;
    region?: 'eu' | 'us';
    baseUrl?: string;
    timeoutMs?: number;
    outputFormat?: 'wav' | 'pcm' | 'opus' | 'ulaw_8000' | 'alaw_8000' | 'pcm_16000' | 'pcm_24000';
    modelId?: string;
    defaultVoiceUrl?: string;
    defaultExaggeration?: number;
    defaultTemperature?: number;
    defaultCfg?: number;
    pollIntervalMs?: number;
}
export interface VoiceProviderFactoryInput {
    integrationKey: VoiceIntegrationKey;
    secrets: VoiceProviderSecrets;
    config?: VoiceProviderConfig;
}
export declare function createVoiceProvider(input: VoiceProviderFactoryInput): TTSProvider;