One embodiment of the present invention is a method for broadcasting information to one or more client devices from a broadcaster that is not a client device, which one or more client devices utilize presentation rates to present audio in broadcast information at various presentation rates using time-scale modification, and which method includes: (a) the broadcaster broadcasting the information; and (b) the broadcaster broadcasting guidance information used to determine presentation rates for use by the one or more client devices in presentation of audio in the broadcast information using time-scale modification; wherein the guidance information is transmitted at or not at a time of broadcast of the broadcast information.