The 7615 Decoder sub module option supports Dolby™ D, Dolby E and AC3 signals. The 7615 fits onto Avenue modules that benefit from comprehensive audio handling. In addition to the hardware sub module, a unique software key is provided for activation. The 7615 decoding option can be fed from either an AES input or an AES stream disembedded from the main module’s incoming SDI signal. The resulting discrete surround signals are then selectable as inputs to the main module’s channel mixer and shuffler.