/**
 * Heuristic speaker-change detector.
 *
 * v1 limitation: silence-gap based. Any inter-segment gap > `minGapSec`
 * counts as a candidate speaker boundary. This is REASONABLE for fast-cut
 * interviews where speakers don't overlap and there's a clear pause when one
 * stops talking. It's WRONG for natural conversation with overlap, rapid
 * back-and-forth, or single-speaker monologues with dramatic pauses.
 *
 * Honest output: returns CANDIDATES, not assignments. The agent should
 * present these to the user, not commit to them silently.
 *
 * Real diarization needs a speaker-embedding model (pyannote, WeSpeaker,
 * whisperx). When we wire that, this v1 stays as a no-dependency fallback.
 */
import type { Transcript } from "./whisper.js";
export interface SpeakerChangeCandidate {
    /** Time of the candidate boundary (seconds). */
    atSec: number;
    /** Gap before this point in seconds. */
    gapSec: number;
    /** First segment AFTER the boundary (text preview). */
    nextSegmentText: string;
}
export interface SpeakerChangeOptions {
    /** Minimum inter-segment silence to count as a boundary. Default 1.5s. */
    minGapSec?: number;
}
export declare function detectSpeakerChanges(transcript: Transcript, opts?: SpeakerChangeOptions): SpeakerChangeCandidate[];
//# sourceMappingURL=speaker-changes.d.ts.map