/** Some recorders mux AudioSpecificConfig as the first AAC sample. Chromium
 * rejects that sample. Only repair this exact signature, not arbitrary bad AAC.
 * Demux/remux preserves every actual encoded audio packet without transcoding.
 */
export declare function repairVoiceAac(bytes: Uint8Array, signal: AbortSignal): Promise<ArrayBuffer | undefined>;
export declare function loadCompatibleVoice(url: string, signal: AbortSignal): Promise<Blob>;
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