Doremi HDG-20 - Manual (Page 11)

3.6 02 AUDIO
Using the AUDIO menu, you can select the embedded audio group (1-4), the 1K-tone volume
level in db, etc.
 Mode: Set audio to 1KHz -16KHz tone in 1KHz increments, Mult. or off. In Mult. (Multiple
Frequencies) mode, the unit will output 1KHz tone on audio channel 1, 2KHz tone on
audio channel 2, …, 16KHz tone on audio channel 16.
 Group: Set the embedded audio Group to 1, 2, 3, 4, 1+2, 3+4 or 1+2+3+4. Group 1
designates audio channels 1-4, Group 2 is 5-8, Group 3 is 9-12 and Group 4 is 13-16.
 Level: Set the tone level from Silence to –6 db.
o The “random” selection is used for audio to video delay testing (see below).
o The Flash selection is used for audio to video delay testing (see below).
 Mask: In a group, the audio can be present on channel 1, channel 2, channel 3, channel
4, pair 1&2, pair 3&4 or on all 4 channels.
3.6.1 Testing Audio to Video delay
The HDG20 provides 3 different ways to test audio to video delays:
 Set the audio level to “Random”: The audio level changes every time Square 1 touches
any of the sides.
 Set the audio level to “Flash”: A new square will be added in the center of the screen
that goes white with an audible tone or silent black
 Set the Pattern to CB-Red and the Motion to Full: The red bar at the bottom of the color
bars will move outwards and inwards silently then flashes to white with an audible tone.
3.7 03 MOTION
Motion can be added to the video output. Moving square(s), Snow, Full Motion, etc can be
selected. Motion is field based in interlaced formats and frame based in progressive formats.
 Mode: No Motion, Square 1, Square 2, 2 Squares, 2 Squares Inverted, Full Motion and
Snow.
o Square 1 keeps changing size as it moves and it changes color when it hits any
of the sides. Possible colors are: white, yellow, cyan, green, magenta, red, blue
and black. Square 1 moves faster than square 2
o Square 2 is always blue and does not change size. It is slower than Square 1.
o 2 Squares Shows both Square 1 and Square 2
o 2 Squares Inv shows both squares in inverted mode with a black background
color. The pattern can be seen inside the squares.
o Full Motion moves the whole pattern. Motion differs between patterns
o Snow adds white noise to the video outputs.
 Speed: 1 is slowest, 7 is fastest.
3.8 04 GENLOCK
HDG.OM.000248.DRM Page 11 of 24 Version 1.6
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