Analog Devices Enables HD Audio in the Toshiba's HD DVD Player

Analog Devices says its SHARC processor has been selected by Toshiba to power the audio signal chain in the world's first HD DVD players, named HD-A1 and the HD-XA1. The HD-A1 and HD-XA1 leverage four SHARC processors to enable multi-channel audio, providing the high-fidelity audio needed to support the high-definition digital media format delivered to today's digital home.

The SHARC processors are able to decode multi-channel streams in a wide array of audio formats. Leveraging the 32-bit floating-point capabilities of the SHARC ADSP-2126x family, the HD-A1 and HD-XA1 support lossy and lossless formats from DTS and Dolby Labs - including Dolby Digital Plus, Dolby TrueHD and DTS-HD (Core decode). The SHARC's processing power is critical for the simultaneous decode of the Dolby Digital Plus streams, which can reach up to 3 Mbps, and the simultaneous conversion to backwards compatible Dolby Digital streams.

In addition to performing the required conversion processing, the SHARC processors conduct the up and down sampling; secondary and effect channel decode; and perform extensive on-board Multi-Channel Signal Management including: Bass Management, Delay Management and Channel Level Management.

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