/**
 * @sharpee/platform-browser/channels/audio — `sound`, `music`,
 * `ambient:*` channel renderers.
 *
 * Owner context: browser default. Per ADR-165 §8, audio channels
 * delegate to the platform's `AudioManager` (the existing Web Audio
 * orchestrator). The renderer translates channel-emission shapes into
 * the legacy `audio.*` event vocabulary that `AudioManager` already
 * understands, so we do not duplicate the playback machinery.
 *
 * Channel mapping (ADR-163 §7):
 *  - `sound` (event, json with `bus?`) → `audio.sfx`.
 *  - `music` (replace, json) → `audio.music.play` (object) or
 *    `audio.music.stop` (null).
 *  - `ambient:<id>` (replace, json) → `audio.ambient.play` (object)
 *    or `audio.ambient.stop` (null), with `channel: id` injected.
 *
 * The `AudioManager` instance is supplied by the caller (typically
 * `BrowserClient`) so the same instance handles both legacy and
 * channel-driven audio events.
 */
import type { ChannelRenderer } from '@sharpee/channel-service';
/**
 * Minimal `AudioManager` surface this module depends on. The full
 * `AudioManager` class implements this; tests pass a mock.
 */
export interface AudioManagerLike {
    handleAudioEvent(event: {
        type: string;
        data: unknown;
    }): void;
}
/**
 * `sound` channel renderer — event-mode. Forwards the payload (with
 * the `bus` rename already applied by stdlib's media channel) to
 * `AudioManager` as an `audio.sfx` event.
 */
export declare function createSoundChannelRenderer(audio: AudioManagerLike): ChannelRenderer;
/**
 * `music` channel renderer — replace-mode. Object value → play; null
 * → stop. Undefined returns are filtered by the dispatcher (sparse
 * channels stay quiet on no-change).
 */
export declare function createMusicChannelRenderer(audio: AudioManagerLike): ChannelRenderer;
/**
 * Construct an `ambient:<id>` channel renderer. Stories register one
 * per ambient layer they use (typically via stdlib's
 * `createAmbientChannel` builder on the producer side).
 *
 * @param audio — the `AudioManager` instance.
 * @param ambientId — the suffix portion of the channel id
 *   (e.g., `'wind'` for the `ambient:wind` channel).
 */
export declare function createAmbientChannelRenderer(audio: AudioManagerLike, ambientId: string): ChannelRenderer;
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