The NJU26501 is a multi-function digital audio signal decoder. The NJU26501 processes the stereo matrix-encoded or compressed signal into spacious sound of up to 7.1(max) channels by Dolby Digital, Dolby Digital EX or DTS with Bass Management System. Also non matrix-encoded audio signal can be processed into effective spacious sound by Dolby ProLogic II. The decoded multi-channel signal can be downmixed into 2-channel virtual surround output by the Dolby Virtual technology. The applications of the NJU26501 are suitable for multi-channel products such as DVD Player, AV AMP, Home Theater and Car Audio, or any kinds of multi-channel audio products.