Dolby Laboratories DM100 Manual do Utilizador descarregar pdf (Página 12)

Dolby

DM100 User’s Manual Getting Started

2-4

2.3 Inputs

Each input connector (XLR, BNC, or Toslink

™

) is active when

specifically selected, or, if the input selection is set to autodetect,

the first input with a valid AES3 signal becomes the active

input. See Section 4.5 for setting the input select function. See

the specifications in Section 5.4 for details on supported sample

rates, impedances, and more.

The digital input format can be Dolby

Digital, Dolby E, or

PCM.

Dolby Digital

The DM100 accepts 16- and 32-bit Dolby Digital bitstreams. It

also accepts AES3 data that contains multiple Dolby Digital

bitstreams (i.e., one 16-bit mode bitstream in each AES3

channel).

Dolby E

The DM100 accepts 16-, 20-, and 24-bit Dolby E bitstreams at

NTSC (29.97 fps), PAL (25 fps), 23.98 fps, 24 fps, and 30 fps

rates.

PCM

If the input signal does not contain a header indicating that a pre-

encoded bitstream is being received, the DM100 assumes the

input signal is PCM audio.

Other

The DM100 also accepts non-audio data over AES3. In this

case, the LCD indicates that data is being received and the audio

output mutes.

Video

The unit can use an analog composite NTSC or PAL black burst

reference video signal for signal generation, via the Ref Video

RCA connector. The input is internally terminated at 75Ω.

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