/**
 * Teardown for the Web Audio graph behind dictation.
 *
 * A live `AudioContext` that reached `destination` keeps a real-time audio
 * render thread (and the microphone stream) alive for the whole lifetime of the
 * page, so every abandoned context is a permanent leak. `start()` can be
 * superseded or cancelled at several `await` points *after* the graph is
 * already wired, which is why disposal is expressed over plain locals here
 * rather than over the hook's refs.
 */
interface TrackLike {
    stop: () => void;
}
export interface MediaStreamLike {
    getTracks: () => TrackLike[];
}
export interface AudioNodeLike {
    disconnect: () => void;
}
export interface ScriptProcessorLike extends AudioNodeLike {
    onaudioprocess: unknown;
}
export interface AudioContextLike {
    readonly state: string;
    close: () => Promise<void>;
}
export interface VoiceSessionResources {
    stream?: MediaStreamLike | null;
    source?: AudioNodeLike | null;
    processor?: ScriptProcessorLike | null;
    context?: AudioContextLike | null;
}
/**
 * Releases every resource in `resources`, tolerating partially-constructed
 * graphs and already-closed contexts. Each step is isolated so one throwing
 * node cannot strand the `AudioContext` that follows it.
 */
export declare function disposeVoiceSessionResources(resources: VoiceSessionResources): void;
export {};
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