Dolby Laboratories DP524 Spezifikationen PDF herunterladen (Seite 9)

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1.2 Features

• Automatic algorithm, data rate and sample rate selection

• Dolby AC-3 audio coding algorithm from 40 kbps - 384 kbps

• Mono, Dual-Mono or Stereo modes for AC-3

• Dolby AC-2 audio coding algorithm from 128 kbps - 384 kbps

• Mono 2-channel modes for AC-2

• Analog outputs with 20-bit D/A converters

• Digital outputs (AES/EBU and S/PDIF)

• Software download capability for software upgrades

• Selectable auxiliary data rates (0 - 9600 baud).

• RS-232 and RS-422 serial interfaces allows Control, Status, Software

Download and Auxiliary data.

• Built-in test tone generator

1.3 Dolby AC-3 and AC-2

Despite the low, spectrum-efficient data rate, Dolby AC-3 and AC-2 yield very high

audio quality and is suitable for the most demanding of professional and consumer

distribution applications. First demonstrated to the film industry in May of 1991,

Dolby AC-3 audio coding technology has evolved into a very sophisticated and

flexible system for the digital representation of high quality sound. Dual channel

implementations of the AC-3 algorithm can be user-configured to operate in Dual

Mono or Stereo modes.

AC-3 and AC-2 are compatible with Dolby Matrix Surround decoding. A wide

range of bit rates and audio coding modes are supported with this audio coding

technique, and are summarized in the tables on the following page.

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Dolby Laboratories DP524 Spezifikationen Seite 9