How to Operate Your Instrument
Element
Description
Level meter scale and units
By default, the zero dB mark is at digital full scale, and units are in dB
relative to full scale (dBFS). You may also set the 0 dB mark to either the
Peak Program level or the Test level.
Above-bar Warning Messages
The waveform monitor displays warning messages above the level meter bars. The warning messages that can appear
above the bars are shown below.
CLIP
. The number of consecutive samples is at or exceeds the # Samples for Clip setting.
OVER
. The signal has been at or above the specified Over Level for a time exceeding the Duration for Over setting.
In-bar Warning Messages
The waveform monitor displays warning messages within the level meter bars. The warning messages that can appear are
shown below in order of priority.
UNLOCKED
. The instrument is not locked to an incoming signal on the indicated input channel. Data cannot be decoded
and all data and other errors are ignored. This means that if an AES input is selected, nothing recognizable is present on
the input, or if embedded audio is selected, the VIDEO input is unrecognizable.
AES PARITY
. The incoming subframe does not have even parity as specified by the digital audio standards. The data
sample is unreliable and is ignored. The level meters and Lissajous display treat the sample as a zero sample.
AES CRC ERROR
. The CRC code in the AES channel status packet is incorrect. Sometimes the CRC code is set to zero,
indicating that the signal is missing; when this is the case, this message is not displayed.
MUTE
. The number of consecutive all-zero samples is at or exceed the # Samples for Mute setting.
SILENCE
. The signal has been at or below the specified Silence Level for a time exceeding the Duration for Silence setting.
DISABLED
. Disabled can appear for three reasons:
Analog audio is selected as the bar source, which causes bars 7 and 8 to display “DISABLED” because there are
only 6 analog inputs.
Embedded audio is selected as the bar source when Composite video is selected as the video input. There is no
embedded audio in composite, so all of the bars will display “DISABLED.”
If the currently selected audio source’s Bar to Input Map does not have all of the bars mapped to inputs, any bars
that are unmapped will display “DISABLED.”
Quick Start User Manual
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