Variety Of Surround Sound Audio Decoder Hardware Development

This article described a Multi-channel audio decoder hardware design solution, this solution based on audio DSP. In this solution, the DSP chip is Curris Logic CS49326, it has mangy audio decoding feature, Such as Dolby Digital, DTS, Dolby Digital Surround-EX, DTS-ES, CS-II, MPEG and so on. The main controller is Hitachi 16-bit Microprocessor H8/3026, and the analog audio switch and volume controller is Mitsubishi M61516. After investigation and mass production, this is a good solution in performance, audio quality, audio dynamic, as well low cost. This decoder can decode mangy of the digital and analog format in the current consumer media, such as Dolby Digital used in DVD for multi-channel audio recode, DTS, and many other audio format. This decoder can provide almost the same effect as a theatre in your home. This decoder was in mass production in the Amoisonic' s Home Theatre product and Marantz Japan' s AV Receiver; they were benefited from the good sell in market of this decoder.