/**
 * Requests access to the microphone.
 *
 * This function checks if the microphone permission is in "prompt" state, then requests
 * access and stops any active tracks immediately.
 *
 * @returns A promise that resolves when the permission request is complete.
 * @throws Error if microphone access is denied or unavailable.
 */
export declare function requestMicAccess(): Promise<void>;
/**
 * Retrieves available audio input devices.
 *
 * This function uses the mediaDevices API to enumerate devices and filters out those
 * which are audio inputs. In some browsers, you may need to request user media before
 * device labels are populated.
 *
 * @returns A promise that resolves with an object containing:
 *  - `devices`: an array of MediaDeviceInfo objects for audio inputs.
 *  - `defaultDevice`: the first audio input device, if available.
 * @throws Error if mediaDevices API is unavailable or device enumeration fails.
 */
export declare function getAudioDevices(): Promise<{
    devices: MediaDeviceInfo[];
    defaultDevice?: MediaDeviceInfo;
}>;