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Instruments & Display Tools
Bar-graphs
The standard bar-graphs can be used to view numerous different
representations of the incoming audio e.g. level according to the selected scale,
various loudness parameters, sum/difference and more.
DK T7 allows up to 16 simultaneous bar-graphs to be viewed at the same time.
Eye Width
Range: 10% - 100%
All SDI capable DK T7 feature the Eye Width Parameter as default feature.
Inspired by cell phone reception indication, Eye Width expresses the immediate
quality of the incoming SDI signal and allows you to constantly monitor this to avoid any drop outs and
instabilities.
The background for the Eye width feature has its starting point in the data eye diagram, typically used to depict
deviation in amplitude and timing of the incoming data stream. By folding the parts of the waveform
corresponding to each individual bit into a single graph, the eye pattern represents an average statistic of the
incoming data and the eye opening expresses the signal quality in terms of amplitude (level difference and
timing difference (jitter).
Eye Width, as the
name suggests, is
concerned with the
width of the eye
pattern, focusing
primarily on the
timing differences
which can also be
measured as jitter.
While not being an
actual jitter
measurement, Eye
Width expresses the
eye pattern max.
timing window as a
percentage of the
ideal, where 100%
width is the theoretical optimal signal with no quality loss (90% is likely to be the max. in real life), and 10%
width the worst case scenario where most products will be unable to the lock onto the signal.
AES Lock Indication
The AES enabled DK T7 feature an AES lock indicator, allowing you to instantly confirm that the meter is locked
onto the incoming signal. When clocking to an incoming AES signal, AES1 needs to be fed the master clock.
Given that a valid clock and lock is achieved, AES1 will light up green.
The corresponding AES inputs will be green when valid data is received in sync with the incoming clock on AES1.
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