/**
 * Returns the volume level of a given MediaStreamTrack.
 * @param mediaTrack The MediaStreamTrack to be analysed.
 * @param onVolumeChange The function to execute when the volume changes. Can be used to visualise audio output.
 * @deprecated Use useAudioLevelObserver() instead.
 */
export declare const useAudioLevel: (mediaTrack: MediaStreamTrack | undefined, onVolumeChange: (volume: number) => void) => void;