Input status a-d, Clock source – Roland VS-2480 User Manual

Page 391

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Supplemental Information

Roland VS-2480 Owner’s Manual

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391

INPUT STATUS A-D

The INPUT STATUS display provides information about input signals received by the
AE-7000’s A/D input converters. There are four kinds of information displayed
regarding each of the four inputs, A, B, C and D. The displayed information is explained
in the following sections.

TYPE

Shows the format of the received digital audio:

TYPE1

—is AES/EBU-format digital audio.

TYPE2

—is S/P DIF-format digital audio.

“--”

—means that there’s no input signal.

COPY PROTECT

COPY PROTECT reveals the presence of SCMS copy-protection in the input signal.

On

—means that SCMS copy-protection data is present in the input signal.

Off

—means that no SCMS copy-protection data is present in the input signal.

“--”

—means that there’s no input signal.

EMPHASIS

Emphasis boosts the high-frequency content of digital audio signals. If EMPHASIS is:

On

—emphasis signals are present in the digital audio.

Off

—there’s no emphasis applied to the digital audio.

“--”

—means that there’s no input signal.

SAMPLING FREQ

SAMPLING FREQ shows the sample rate of the received digital audio, from 32k to 48k.
“Unlock” is displayed if:

there’s no signal.

there’s no master clock

the signals are outside the supported sample frequency range.

CLOCK SOURCE

CLOCK SOURCE selects the master clock timing reference for the AE-7000. This
parameter interacts with the VS-2480’s MASTER CLOCK parameter (Page 132).

When the VS-2480’s MASTER CLOCK parameter’s value is the R-BUS jack to
which the AE-7000 is connected, the AE-7000’s CLOCK SOURCE should be set to
INPUT A or WORD CLOCK.

When VS-2480 MASTER CLOCK is set to INT, COAXIAL IN, OPTICAL IN, WORD
CLOCK or EXT TIME CODE, the AE-7000’s CLOCK SOURCE should be set to
R-BUS. However, if a separate word clock generator is supplying word clock
directly to the AE-7000, set the AE-7000’s CLOCK SOURCE to WORD CLOCK.

The following table explains the CLOCK SOURCE values and tells you how to set the
VS-2480’s MASTER CLOCK parameter with each AE-7000 CLOCK SOURCE value.

Turn down the volume for all connected equipment before changing the CLOCK
SOURCE value to avoid damage to your equipment.

VS2480OMUS.book 391 ページ 2006年2月7日 火曜日 午後4時16分

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