import type { Pcm } from '../../services/voice/audio.js';
import { type RealtimeVoiceAudioFormat, type RealtimeVoiceFrame } from './types.js';
export interface SplitPcmFrameOptions {
    frameMs?: number;
}
export interface PaceRealtimeVoiceFramesOptions {
    sleep?: (ms: number) => Promise<void>;
    now?: () => number;
    bufferedAmount?: () => number;
    maxBufferedAmount?: number;
    backpressureSleepMs?: number;
}
export declare function realtimeAudioFormatFromPcm(pcm: Pcm, opts?: SplitPcmFrameOptions): RealtimeVoiceAudioFormat;
export declare function bytesPerRealtimeFrame(format: RealtimeVoiceAudioFormat): number;
export declare function splitPcmIntoRealtimeFrames(pcm: Pcm, opts?: SplitPcmFrameOptions): {
    format: RealtimeVoiceAudioFormat;
    frames: RealtimeVoiceFrame[];
    durationMs: number;
};
export declare function paceRealtimeVoiceFrames(frames: RealtimeVoiceFrame[], send: (frame: RealtimeVoiceFrame) => void | Promise<void>, opts?: PaceRealtimeVoiceFramesOptions): Promise<void>;
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