CTP Systems dBbox2, Руководство пользователя, Страница: 4 / 17

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Audio Inputs
Access to the various facilities will be described as for example:
Input> Analogue Gain > Where analogue input is selected and we are
dealing with the gain settings.
Analogue Inputs, metering and monitoring
On the analogue input page it is possible to listen to and meter mono or stereo
analogue signals using PPM or VU metering (as selected in Setup) with a stereo
phase meter and, for testing microphones, to apply phantom power.
Input> Analogue Gain > Gain range -10 to +70dB
Input> Analogue Phantom > Phantom power (both inputs) on or off
AES/SPDIF Inputs, metering and monitoring and analyzing
All digital inputs are essentially the same apart from the connector in use, voltage
levels and impedance. They all use the same display page so will all be described
together. Input metering may be 18dBFS, 20dBFS, PPM or VU and includes a stereo
phase meter. The unit will auto switch sample rates in the range 32kHz to 96kHz.
Input> AES BNC
Input> AES XLR
Input> SPDIF BNC
The examples will use AES BNC.
Input> AES BNC Listen > Select to listen to left, right or both
Audio channels .
Input> AES BNC Errors This lists any errors that may occur on the
Digital signal. Checks are made on:
CRC Q subcode
CRC channel status
Unlock
Data validity
Biphase encoding
Parity
With no signal input some of these errors may still show as “OK’ as there is no signal
to analyse or compare.