At last week's National Association of Broadcasters convention in Las Vegas, Dolby Laboratories unveiled the first Dolby E encoder and decoder products, which are intended to help television broadcasters make the transition from two-channel to multichannel audio. According to the company, the DP571 Dolby E Encoder and DP572 Dolby E Decoder allow broadcasters to distribute up to eight channels of audio, as well as additional data, with a pair of channels on a single AES/EBU cable, two audio tracks of a digital video tape, digital audio tape, or video server.