Tektronix WVR8200 User Manual page 116

Display information
96
Phase, Surround, or Loudness Display: Select between the Phase display,
where the phase of a selected pair of channels is plotted against an X-Y or
sound-stage plot; and the Surround display, where all the channels levels
display in positions matching their place in a surround-sound listening
environment; and the Loudness display, where loudness targets are shown.
(See page 163, To check audio phase.) (See page 166, Elements of the
surround sound display .) (See page 84, Audio Loudness Session display.)
Audio source/setup: Displays selected audio input and related setup
information, such as Listening Mode when in Surround display. (See
page 160, Monitoring audio.)
Level meter labels: Identifies the signal in each meter bar. The labels vary
according to whether the audio sources to the level meter bars are normal
channel pairs, surround channels, or Dolby sources (the Dolby source labels
include Dolby type).
Level meter ballistics readouts: Displays the selected dynamic response
characteristic.
Axes: Shows the orientation of the two audio signals when displaying phase;
shows the orientation and amplitudes of the sound field when displaying
surround sound. (Axes are selectable for an X-Y or Soundstage plot.)
Phase correlation meters: Displays the phase correlation between the
two-channel bars under which it appears. The meter of the pair selected for
the Phase display also appears in the Phase display. (See page 163, To check
audio phase.)
Test level and Peak program level indicators: Diamond-shaped markers
between the level bars indicate the configurable limits set up for the display.
Above the Test level, the bar displays in a yellow color. Above the Peak
level, the bar displays in a red color. Test level is also known as Reference
level or Line-up level.
Level meter scale and units: By default, the units are in dB relative to full
scale (dBFS) for digital inputs and dB relative to 0.775 Volts (dBu) for analog
inputs. The 0 dB mark is digital Full scale for digital inputs and 0 dBu for
analog inputs. You may also set the 0 dB mark to either the Peak Program
level or the Test level. See also CONFIG > Digital Audio Displays > Set
Meter Type To, and CONFIG > Analog Audio Displays > Set Meter Type To.
Dolby E Guardband thermometer: Guardband limits can be set for SD,
HD, 3G, DL, and CMPST signals. A Dolby E Guardband thermometer is
displayed on the Audio display so that you can monitor whether guardband
limits are being exceeded.
NOTE.
The loudness measurement supports three types of filters: Flat,
A-weighted, and RLB (ITU-R BS.1770). The measurement can be viewed in the
Audio Session display and configured in the Audio pop-up menu.
WVR8200 and WVR8300 User Manual