Grass Valley 1200 Operation Manual

Operation Manual

MODEL 1200

DIGITAL PRODUCTION SWITCHER

software release

TP0716-01

FIRST PRINTNG: MARCH 1997

3.0

Customer Service Information

Address

Mail: Shipping Only:

P.O. Box 1114 400 Providence Mine Rd Grass Valley, CA 95945 Nevada City, CA 95959

Telephone

Tektronix, North America: Tektronix, UK:

44-1628-403699

Tektronix, Hong Kong: Tektronix. Brazil: Tektronix. Mexico: Elsewhere: Fax:

(916) 478-3181

Distributor or sales office from whom equipment was purchased

55 11 3741-8417

52 5 666-6333

(800) 547-8949

852-2593-5500

Note that as of November 1, 1997 the FAX number changes to (530) 478-3181

E-Mail:

gvgservice@tek.com

Tektronix World Wide Web

http://www.tek.com

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved. TEKTRONIX, TEK, Grass Valley Group, Borderline, E-MEM, TEN-X, Wavelink, and are registered trademarks, and Air Link, Auto Match, Doubletake, EDisk, Eagle V, Emphasys, EZ-Link, 409, Horizon, Grass Valley, Jogger, Kadenza, Kaleidoscope, K-Mask, Key-Layer, Key-Link, Krystal, MASTER System, Master 21, MAX, Omni-Key, Performer, Programmed Motion, Silhouette, Softset, Streamline, Super Edit, TEN-20, 20-TEN, Trace, TrailBlazer, VideoDesktop, Flex-Time, and XEDL are trademarks of Tektronix, Inc. P.O. Box 1000 Wilsonville, OR 97070-1000 U.S.A.

The information in this manual is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Tektronix, Inc. Tektronix assumes no responsibility or liability for any errors or inaccuracies that may appear in this publication.

Tektronix, Inc., Video and Networking Division, P.O. Box 1114 Grass Valley, California 95945 U.S.A.

Section 1 — Introduction

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Section Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Features of the Model 1200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Model 1200 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Section 2 — Startup

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

System Startup or Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

LampSaver Panel Sleep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Concepts You’ll Need to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Delegation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Crosspoint Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Cut Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Mix Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Wipe Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Luminance Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Linear Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Preset Pattern Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Chroma Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Shaped Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Effects Send . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Z-Key™ Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

E-MEM® Effects Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Contents

Section 3 — Controls & Menus

System Setup: Using the Configuration Menus . . . . . . . . . . . . . . . . . . . 2-12

Menu Pushbuttons and Knobs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

System Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Define Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Define Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Chroma Key Sources Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Crosspoint Display Legends Menu . . . . . . . . . . . . . . . . . . . . . . 2-19

Crosspoint Map Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Timing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Port Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

GPI Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Tally Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Bus Delegates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Crosspoint Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

PST (Preset) Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

PGM (Program) Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Key Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Aux Bus 1 and Aux Bus 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Satellite Aux Bus Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Downstream Keyer (DSK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

DSK Preview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

DSK Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

DSK Mix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Effects Send . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

E-MEM Effects Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Learn Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Undo/Decimal Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Trans Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Contents

External Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Editor Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

GPI Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

DPM Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Fade To Black . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Black Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Black Mix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Keyer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Keyer Delegation Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Key Source Type: Video Key and Auto Select Key . . . . . . . . . . . . 3-18

Split Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Key Fill: Video or Matte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Key Type: Linear Key, Luma Key, Chroma Key, Preset Pattern . 3-19

Linear Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Luma Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Chroma Key and Auto Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Preset Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Key Modifiers and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Key Over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Invert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Force Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Show Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Key Opacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Gain and Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Borderline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Normal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Border . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Shadow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Extrude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Key Memory and Key Copy Features . . . . . . . . . . . . . . . . . . . . . . . 3-25

Matte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Matte Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Matte Delegation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

vii

Contents

Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Pattern Selection Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

User Wipe Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Pattern Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Positioner (Joystick) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Wipe Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Mask Preset Pattern/Wipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Size and Border Width, Softness, and Symmetry . . . . . . . . . . 3-31

Mask/Preset Invert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Wipe Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Bkgd, Key 1, Key 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Bkgd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Key 1 and Key 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Mix and Wipe Transition Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Mix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Wipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Transition Controls: Cut, Auto Trans, and Lever Arm . . . . . . . . . 3-35

Visual Display and Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Menu Pushbuttons and Knobs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Keypad Numeric Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Double-Press Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Chroma Key Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Chroma Key Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Chroma Key Auto Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Auto Setup Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Chroma Key Fgd Suppress Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46

Foreground Suppress Menu Functions: . . . . . . . . . . . . . . . . . . 3-46

Chroma Key Edge Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48

Chroma Key Edge Menu Functions: . . . . . . . . . . . . . . . . . . . . . 3-48

Chroma Key Shadow Proc Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50

Shadow Proc Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50

Chroma Key Force Mask Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52

Force Mask Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52

viii

Contents

Configuration Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54

Configuration Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . 3-54

System Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56

System Parameters Menu Functions: . . . . . . . . . . . . . . . . . . . . 3-56

Define Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

Define Inputs Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

Configuration Name Inputs Menus . . . . . . . . . . . . . . . . . . . . . 3-60

4:4:4 Chroma Key Sources Menu . . . . . . . . . . . . . . . . . . . . . . . . 3-62

Crosspoint Display Legends Menu . . . . . . . . . . . . . . . . . . . . . . 3-64

Crosspoint Display Legends Menu Functions: . . . . . . . . . . . . 3-64

Crosspoint Map Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66

Crosspoint Map Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . 3-66

Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Outputs Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Timing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70

Port Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

Port Configuration Menu Functions: . . . . . . . . . . . . . . . . . . . . 3-72

GPI Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74

GPI Input and Output Menu Functions: . . . . . . . . . . . . . . . . . . 3-74

Tally Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Tally Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Copy/Swap Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-77

Disk Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Disk Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Disk Save Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-84

Disk Save Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-84

Save Switcher Configuration to Disk . . . . . . . . . . . . . . . . . . . . 3-86

Name File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88

Disk Load Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-90

Disk Load Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-90

Load Configuration and Load All . . . . . . . . . . . . . . . . . . . . . . . 3-91

Disk Util Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-92

Disk Load Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-92

Moving Files to Other Directories . . . . . . . . . . . . . . . . . . . . . . . 3-93

Name Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94

Disk Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96

Disk Format Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96

Name Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-98

Contents

Keyer Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-100

Keyer Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-100

Key Border . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102

Last Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-104

Misc Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-104

Priority/Depth Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-106

Priority/Depth Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . 3-106

Proc Amp Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-108

Proc Amp Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-108

Status Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-110

Wipe Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112

Wipe Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-112

Wipe Multiply Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-114

Wipe Multiply Menu Functions: . . . . . . . . . . . . . . . . . . . . . . . 3-114

Wipe Modulation Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-116

Wipe Modulation Menu Functions: . . . . . . . . . . . . . . . . . . . . . 3-116

Readout Display Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-118

Section 4 — Basic Operations

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Starting Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Background Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Background Mix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Background Wipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Learning User Wipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Fade to Black . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Setting Transition Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Matte Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Luminance and Linear Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Key Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Preset Pattern Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Chroma Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Using E-MEM Effects Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Section 5 — Advanced Operations

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Starting Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Proc Amp Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Monochrome Video Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Matte Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Matte Wash Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Matte Wash Method 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Spotlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Spotlight Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Spotlight Method 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Advanced Chroma Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Using Effects Send to Fly a Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Using Aux Buses to Fly a Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Contents

List of Illustrations

Figure 1-1 Model 1200 Simplified Functional Block Diagram . . . . . . . . . . 1-4

Figure 2-1 A Mix Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-2 A Wipe Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Figure 2-3 Luminance Key Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Figure 2-4 Chroma Key Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Figure 2-5 1200 Configuration Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Figure 2-6 Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Figure 2-7 System Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-8 Define Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Figure 2-9 4:4:4 Chroma Key Sources Menu . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Figure 2-10 Crosspoint Display Legends Menu . . . . . . . . . . . . . . . . . . . . . . 2-19

Figure 2-11 Crosspoint Map Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Figure 2-12 Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Figure 2-13 Timing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Figure 2-14 Port Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Figure 2-15 GPI Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Figure 2-16 GPI Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Figure 2-17 Tally Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

xii

Figure 3-1 Model 1200 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Figure 3-2 Bus Delegates Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Figure 3-3 Crosspoint Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-4 Downstream Keyer (DSK) Panel Section . . . . . . . . . . . . . . . . . . 3-9

Figure 3-5 Effects Send Panel Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Figure 3-6 E-MEM Panel Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Figure 3-7 External Interface Panel Section . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Figure 3-8 Fade To Black Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Figure 3-9 Keyer Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Figure 3-10 Foreground Clip/Background Clip Operation . . . . . . . . . . . . 3-23

Figure 3-11 Borderline Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Figure 3-12 Matte Panel Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Figure 3-13 Pattern Panel Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 3-14 Transition Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Figure 3-15 Visual Display Panel Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Figure 3-16 Display Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Figure 3-17 Chroma Key Top Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

Figure 3-18 Chroma Key Auto Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Contents

List of Illustrations – continued

Figure 3-19 Chroma Key Foreground Suppress Menu . . . . . . . . . . . . . . . . 3-47

Figure 3-20 Chroma Key Edge Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49

Figure 3-21 Chroma Key Shadow Proc Menu . . . . . . . . . . . . . . . . . . . . . . . 3-51

Figure 3-22 Chroma Key Force Mask Menu . . . . . . . . . . . . . . . . . . . . . . . . . 3-53

Figure 3-23 Configuration Top Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55

Figure 3-24 System Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57

Figure 3-25 Define Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

Figure 3-26 Signal Name Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61

Figure 3-27 Local Name Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61

Figure 3-28 4:4:4 Chroma Key Sources Menu . . . . . . . . . . . . . . . . . . . . . . . . 3-63

Figure 3-29 Crosspoint Display Legends Menu . . . . . . . . . . . . . . . . . . . . . . 3-65

Figure 3-30 Crosspoint Map Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67

Figure 3-31 Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Figure 3-32 Timing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Figure 3-33 Port Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73

Figure 3-34 GPI Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75

Figure 3-35 GPI Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75

Figure 3-36 Tally Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-77

Figure 3-37 Copy/Swap Proc Amp Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78

Figure 3-38 Copy/Swap Keyer Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

Figure 3-39 Copy/Swap Matte Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

Figure 3-40 Copy/Swap Border Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81

Figure 3-41 Disk Top Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83

Figure 3-42 Disk Save Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-85

Figure 3-43 SAVE CONFIG in Disk Save Menu . . . . . . . . . . . . . . . . . . . . . . 3-87

Figure 3-44 File Name Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-89

Figure 3-45 Disk Load Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91

Figure 3-46 Disk Util Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-93

Figure 3-47 Directory Name Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-95

Figure 3-48 Disk Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-97

Figure 3-49 Volume Label Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-99

Figure 3-50 Keyer Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-101

Figure 3-51 Key Border Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103

Figure 3-52 Miscellaneous Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-105

Figure 3-53 Priority/Depth Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-107

Figure 3-54 Proc Amp Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-109

Figure 3-55 Status Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-111

Figure 3-56 Wipe Top Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-113

xiii

Contents

List of Illustrations – continued

Figure 3-57 Wipe Multiply Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-115

Figure 3-58 Wipe Modulation Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-117

Figure 4-1 Background Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Figure 4-2 Background Mix Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Figure 4-3 Background Wipe Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Figure 4-4 Luminance/Linear Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Figure 4-5 Preset Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Figure 4-6 Chroma Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Figure 5-1 Spotlight Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Figure 5-2 Flying a Chroma Key Using Effects Send . . . . . . . . . . . . . . . . . 5-10

xiv

Introduction

Welcome to the Model 1200 Operation manual. This manual will help you get the most out of the power built into the compact Model 1200. You can either use the manual as a tutorial to help you learn the switcher, beginning with this section and working your way to the end, or you can use the book as a reference tool to answer occasional questions.

Also, don’t overlook the Quick Reference Guide tucked into the pocket inside the front cover of this book. The Quick Reference Guide presents operating procedures in the shortest possible form. If you are an experienced operator who wants only a quick overview of operating procedures and an occasional reminder, the Quick Reference Guide may be all you will need.

Section Contents

This section of the Operation manual discusses the following topics:

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Features of the Model 1200—page 1–2 Model 1200 Overview—page 1–4

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1-1

Section 1— Introduction

Features of the Model 1200

The Model 1200 Digital Production Switcher is a moderatelypriced yet powerful one mix/effects component digital mixer. It offers the tremendous advantage of digital video as well as many desirable mixing and special effects features:

Ten-bit component digital format for excellent signal quality

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and virtually unlimited effects layering. Aspect ratio can be set for 4:3 or 16:9 (13.5 MHz).

Up to 16 digital video or key inputs plus internal black and

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background. Optional inputs may be parallel, serial, or some of each. Inputs may be auto-timed, mapped to crosspoints, and level-adjusted by built-in processing amplifiers.

Ten Crosspoint Switching Buses: Program Background,

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Preset Background, Key 1 Source and Fill, Key 2 Source and Fill, DSK Source and Fill, Auxiliary 1, and Auxiliary 2.

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One effects keyer and one downstream keyer plus an optional second effects keyer. Each keyer creates luminance, linear, preset pattern, and chroma keys (optional) from inputs selected on the Key Bus. Keys can be inverted and masked.

1-2

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Optional Chroma Keyer accepts 4:2:2 or 4:4:4 inputs. Includes adjustable background and foreground suppression and choice of additive or multiplicative key.

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Effects transition controls include cut, lever arm, and frameaccurate automatic transition. Effect modes include Mix, Wipe, and Cut. Effects backgrounds and keys can be transitioned on or off separately or simultaneously.

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Separate DSK controls include cut, frame-accurate automatic mix, and frame-accurate fade to black.

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Effects key layers can be adjusted for opacity and priority of one key over another.

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Z-Key™ Depth option accepts depth keys from Grass Valley digital effects systems for compositing intersecting plane effects with adjustable offset. Non-depth keys can be offset so that new layers can be recorded between existing layers.

Features of the Model 1200

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Depth option includes Layered mode that composites both M/E keys onto the switcher Key output.

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Effects Send enables flying switcher effects keys over switcher backgrounds using an external Grass Valley digital effects system. (Requires Effects Send/Aux Output option.)

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Borderline® Key Edger option available for each keyer includes borders, drop shadows, outlines, and extrusions.

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Wipe/mask system includes twenty patterns with H and V multiples and matte edge adjustable for width, softness, and softness symmetry. Patterns can also be adjusted for position, aspect, rotation, and modulation. New approach to pattern generation provides smoother wipe transitions.

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Many internal mattes available, including background matte, matte fill for each keyer, separate matte for each Borderline mode, wipe edge matte, preset pattern edge matte, and mattes generated by any number of crosspoints if enabled via menus.

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Twenty panel-operated E-MEM® registers provide storage and recall of effects and auto transitions.

Contact-closure GPI interface includes 8 inputs for external

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triggering of switcher functions and 8 outputs for switcher triggering of other devices. Outputs can be synchronized with switcher transitions.

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Sixteen tally relay outputs. Four serial ports for serial interface to an editor, a DPM, and

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other external devices. Optional preview system for previewing effects.

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Optional parallel digital or serial digital outputs.

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Optional component analog monitor outputs. Built-in panel display includes menus, soft knobs for

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additional control of many switcher functions, and a floppy disk drive for storing system configuration and E-MEM files.

LampSaver mode turns off panel lamps to reduce lamp

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burnout during idle periods.

1-3

Section 1— Introduction

Model 1200 Overview

The Model 1200 architecture (Figure 1-1) consists of a single mix/effects system with two keyers and a downstream keyer. Video inputs selected on the background crosspoint buses enter a pair of program and preview mixers. Video and key inputs selected on the key crosspoint bus are first processed in the keyer circuits. If effects send mode is off, the keyer outputs go directly to the mixers, and any aux bus selections go directly to the aux outputs. If effects send mode is on, the key and fill outputs of one of the keyers are routed via the aux bus outputs to a DPM, and the

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SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

CHROMATTE™

4:2:2/4:4:4 CHROMA

KEY OPTION

CROSSPOINT

MODULE

AUX 1

AUX 2

MIX/EFFECTS

KEYER 1

SECOND

MIX/EFFECTS

OPTION

DOWNSTREAM

PROGRAM BACKGROUND

PRESET BACKGROUND

KEYER CARRIER AND

EFFECTS SEND

MODULE

BORDERLINE

KEY EDGE

GENERATOR

OPTION

BORDERLINE

KEY EDGE

KEYER

GENERATOR

OPTION

BORDERLINE

KEY EDGE

GENERATOR

OPTION

Note: Digital video/key inputs and outputs may be either serial or parallel as specified when ordered.

EFFECTS

SEND

AND

AUX BUS

SIGNAL

ROUTING

Figure 1-1. Model 1200 Simplified Functional Block Diagram

1-4

Model 1200 Overview

aux buses automatically select the manipulated key and fill inputs returning from the DPM. The aux buses then apply the manipulated key and fill signals to the mixers. The mixers multiply the processed background and key signals to produce mixed effects video. The effects video enters the downstream key mixers where the DSK signal is mixed over the effects layer. The final output signals then pass through output processing to the various analog, serial digital, and parallel digital outputs

PGM

EFFECTS

SEND &

AUX BUS

OUTPUT OPTION

DIGITAL-TO-ANALOG

CONVERTER

OPTION

PROGRAM

MIXER

PST

EFFECTS

MIXER

Z-KEY™ DEPTH

PROCESSOR

OPTION

LOOK-AHEAD PREVIEW

EFFECTS

MIXER

Z-KEY™ DEPTH

PROCESSOR

OPTION

MIXER OPTION

DIGITAL-TO-ANALOG

DOWNSTREAM

KEY MIXER

DOWNSTREAM

KEY MIXER

CONVERTER

OPTION

PARALLEL PROGRAM

OUTPUT

OPTION

SERIAL

PROGRAM

OUTPUT

OPTION

PREVIEW

CLEAN

FEED OUTPUT OPTIONS

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

SEND VIDEO OR AUX 1 OUT

SEND KEY OR AUX 2 OUT

ANALOG PROGRAM VIDEO (YUV, RGB, OR Y R-Y B-Y)

VIDEO PGM 1

KEY PGM 1

VIDEO PGM 2

KEY PGM 2

PREVIEW VIDEO

CLEAN FEED VIDEO

ANALOG PREVIEW VIDEO (YUV, RGB, OR Y R-Y B-Y)

1-5

Section 1— Introduction

1-6

Introduction

Startup

This section of the manual helps you get started using the switcher. The following topics are discussed:

■

System Startup or Restart—page 2–2

■

Concepts You’ll Need to Know—page 2–3 System Setup: Using the Configuration Menus—page 2–12

■

You might be tempted to skip over the “Concepts” part of this section, especially if you are an experienced switcher operator. Nevertheless, we advise you to read it anyway because it explains operating concepts specific to the 1200 switcher that will help you to more fully understand how the 1200 works.

2-1

Section 2— Startup

System Startup or Restart

Startup

1. Set the 0/1 power switch inside the front cover of the switcher frame to the 1 (on) position.

2. Set the 0/1 power switch inside the switcher control panel to the 1 (on) position.

This applies power to the entire system, which will boot up and become operational in a few seconds. To power down the system at any time, just switch both power switches to 0 (off).

Restart

If the system becomes confused or locks up, you can restart it as explained below. The effect you were working on will be lost, but E-MEM contents and conﬁguration ﬁles will remain intact.

1. Press the

2. If clearing the panel didn’t help, press the

3. Finally, if neither of the above steps resolves the problem, turn

LampSaver Panel Sleep Mode

Note that the switcher includes a “sleep” mode called LampSaver, which is intended to extend pushbutton lamp life-span. When the switcher is idle for an extended period (adjustable) all button lamps turn off. To wake up the switcher, press any button or turn any knob. For details about the LampSaver mode, see the description of the Miscellaneous menu in Section 3.

2-2

[Misc]

control panel. Then press the button in the Miscellaneous Menu to clear the panel.

the Control module (064911) inside the switcher frame.

the frame and panel power switches off and on again.

menu button in the upper left corner of the

[CLR WORK BUFFER]

RESET

switch on

soft

Concepts You’ll Need to Know

There are a few basic concepts that you should know before you begin setting up and operating the switcher. These concepts are presented on the following pages.

Delegation

Some switcher functions, when selected, automatically activate related subpanels or functions. This is called example, when you press the subpanel, the Keyer subpanel delegates to control Keyer 1. Related functions delegate in logical ways, making operation easier because fewer button pushes are required.

Sometimes, even with the help of automatic delegation, you must still delegate a function manually. If a subpanel or function doesn’t respond when you operate it, check that it is delegated to the function you are trying to control.

Concepts You’ll Need to Know

[Key 1]

delegation

button in the Transition

. For

Crosspoint Bus

crosspoint bus

each with a different video or key input and a common output called a connecting to the output. The outputs of the various buses feed the switcher’s effects and transition circuits.

There are a number of buses in the Model 1200, including the PGM (Program) and PST (Preset) background buses, the Key buses, and the Aux (auxiliary) buses. The background buses feed the video mixers, allowing you to select background sources and do transitions between them. The key buses feed the keyers, allowing you to set up keys, which are also fed to the mixers for keying over the background. Lastly, the aux buses select signals and send them directly to a switcher output for feeding external devices, such as digital picture manipulators; this makes the same inputs that are available to the switcher also available to the external devices.

bus

consists of a group of switches called

. The switches allow you to select an input for

crosspoints

2-3

Section 2— Startup

Transition

transition

Model 1200 provides three methods for making video transitions: a cut, a mix, and a wipe.

is a change from one video picture or to another. The

Cut Transition

cut

is an instantaneous switch from one picture to another. A background cut, for example, switches the Program (on air) output of the switcher instantly from the picture selected on the Program bus to the picture selected on the Preset bus. A cut can also be used to switch a key on or off air instantaneously.

Mix Transition

mix

is a transition from one picture to another where the new picture mixes into and then replaces the picture that was already on air (Figure 2-1). The Model 1200 allows you to mix from one background picture to another or to mix up to three separate key layers on or off over a background. Background and effects key mixes can be done separately or simultaneously.

Starting Video

2-4

Ending Video

Mix in Progress

Figure 2-1. A Mix Transition

Concepts You’ll Need to Know

Wipe Transition

wipe

is a transition from one picture to another where a shaped edge moves across the screen revealing the new picture (see Figure 2-2). A background wipe removes the old Program Background picture as it wipes on the new Preset Background picture. A key wipe reveals the key over the existing background or removes it without affecting the existing background. In the Model 1200, a wipe can also change the background and the effects key(s) at the same time.

Wipes can take the shape of any of the twenty available patterns, which can be adjusted for position, aspect ratio, multiples, rotation, modulation, edge width, edge color, and edge softness.

Starting Video

Ending Video

Wipe in Progress

Figure 2-2. A Wipe Transition

2-5

Section 2— Startup

Key

A key is an effect in which parts of one picture are inserted into another to create a composite picture. For example, keys are used to insert captions, to place a small news scene or graphic over the shoulder of a newscaster, or to place the image of a weather reporter in front of a weather map. There are several types of keys, each of which serves a different purpose.

Luminance Key

luminance key

information in one picture, called the another picture, called the

fill

, is inserted into the hole to fill it. A operator to set the level of key source brightness that will cut the hole so that any part of the picture that is lower in brightness than the clip setting is ignored and will not cut the hole. The operator can also instead of bright areas.

invert

, shown in Figure 2-3, uses the brightness

key source

background

the key so that dark areas of the source cut the hole

. A third picture, called the

clip

to cut a hole in

control allows the

2-6

To use an example, suppose we want to insert a green logo into some background video. We could print the logo in white on black paper and then focus a camera on it. We can then apply the signal from the camera to the switcher’s keyer where it will be used as a key signal. Next we can select a green matte video to apply to the keyer as the fill video. When the clip is set properly, the keyer will ignore the black paper and use only the white logo shape to cut a hole in the background video. Then it will fill the logo-shaped hole with green matte video. This creates a green logo inserted into the background. In actuality, this method of keying is seldom used anymore. Instead, a graphics system generates the key and fill video, but the same concepts apply.

Luminance keyers also include a sharpness of the transition from one picture to another at the key’s edge; high gain yields a sharp edge, and low gain yields a soft edge that mixes the fill and background video. In addition, the Model 1200 keyers include an S-shaping function that prevents the transition at the key edge from becoming too sharp and creating what appears to be a band or line around the key.

gain

control, which sets the

Concepts You’ll Need to Know

Using the Keyer menu, the clip and gain controls can be changed to control foreground clip and background clip. In that case, the controls independently adjust the transition edges of the foreground fill video and the background video.

Linear Key

linear key

key is set to a value of one (also called “unity”) so that the edges of anti-aliased key sources are faithfully reproduced. Anti-aliased sources, such as the output of a character generator or graphics system, have soft edges that produce a mix between the fill and the background at the key edge. A linear key preserves this edge.

GVG News

is similar to a luminance key except that the gain of the

GVG

Key Source

News

Fill Video

Background with Key and Fill Inserted

Figure 2-3. Luminance Key Example

2-7

Section 2— Startup

Preset Pattern Key

preset pattern key

wipe pattern cuts the hole in the background video. The fill video is selected on the Key bus, and the Pattern controls and Wipe menus are used to select and adjust the key source pattern.

preset wipe

is a key in which the shape of a

Chroma Key

chroma key

the background of a scene is detected and replaced with a new background scene. This gives the illusion that foreground objects are positioned in front of a new background. For example, the fill video selected on the Key bus may be a weather reporter standing in front of a blue wall, and the new background video may be a weather map (Figure 2-4). The completed chroma key consists of the weather map background where the blue wall used to be and the reporter foreground fill everywhere else. This creates the illusion that the reporter is standing in front of the weather map.

A convenient feature of the 1200 chroma keyer is automatic setup, which sets up the key for you when you identify the background color that you want to replace by positioning a cursor over the color using the joystick and pressing the button on the top of the joystick. In most cases, this function yields a very good chroma key, which you can use as is or fine tune as desired using the Keyer controls and the Chroma Key menu controls.

is a key in which a particular color that you select in

2-8

The Model 1200 chroma keyer includes background and foreground suppression. Background suppression replaces the old background color with black before adding in the new background. This ensures that the old background color is completely removed from the scene, resulting in a cleaner key. Foreground suppression is essentially a second chroma keyer that allows you to detect and remove the background color and its variations that “splash” onto foreground objects, as sometimes happens when the foreground object is placed near the background. The detected foreground “splash” color is replaced with a neutral color and luminance value that restores the natural color of the foreground object.

Concepts You’ll Need to Know

Both background and foreground suppression include menu controls for selecting the hue to be replaced and for adjusting the luminance and chrominance levels in the areas of the picture where suppression is applied.

Also included in the 1200 chroma keyer are a shadow processor and a box mask. The shadow processor adjusts the amount of shadow that chroma key foreground objects cast onto the background, making the key look more natural. The box mask, controlled from the Chroma Key Force Mask menu, can be sized and positioned over a part of the key foreground or background to prevent the key from occurring in that area.

Lastly, an Edge Control menu allows you to adjust the size (both width and height) of the key edge in the black suppressed part of the background. Adjusting for optimum key size ensures that none of the black background suppression is visible along the key edges.

BLUE

ForegroundVideo

Background Video

Foreground Keyed Over Background

Figure 2-4. Chroma Key Example

2-9

Section 2— Startup

Shaped Video

Shaped video

create a partial-raster image that is matted over black. A good example of shaped video is the fill video output of some character generators, which consists of characters on a black matte. Typically, the shaped fill video is also accompanied by a matching key signal that may be used in a keyer to cut a hole in background video into which the already-shaped fill video may be inserted.

The 1200 configuration menus ask you to identify video inputs as shaped or unshaped because the switcher handles those two types of fill video signals differently. For keying with shaped fill video, the keyer multiplies only the background video with the key signal to cut a hole in the background, and then adds the alreadyshaped fill video into the hole. For fill video that is not already shaped, the keyer first multiplies both the background and the fill video with the key to cut a hole in the background and shape the fill to match the hole. Then the background video and the fill video are added together to create the finished key.

If you incorrectly identify the type of fill video in the Define Inputs configuration menu, selecting shaped when you should select unshaped or vice versa, your keys will have dark lines at the edges or other artifacts. Changing the video type in the Define Inputs configuration menu will correct the problem.

is video that has been multiplied by a key signal to

Effects Send

2-10

Effects Send provides a close interface between the switcher and a digital picture manipulator (DPM). Effects Send takes the key and fill video outputs of an effects keyer and sends them to the DPM for manipulation. The manipulated key and fill outputs from the DPM then re-enter the switcher’s mixers via the aux buses.

The Effects Send advantage lets you transform a switcher key effect, such as a chroma key or a preset pattern, as though the DPM circuitry were built into the middle of the switcher: The transformed key can be layered over a switcher background and additional keys can be layered on top of the transformed key.

Z-Key™ Depth

Concepts You’ll Need to Know

The Depth option enables the switcher’s two effects keyers to key a depth key input from a Grass Valley digital picture manipulator over a switcher background. Depth keying creates an effect in which one key layer appears closer to the viewer than a second key layer does, and one key layer can “slice” through the other.

The Depth option also works with ordinary key signals. You can assign different depth values to the two M/E keys and record them. Then you can play the composite effect back and insert additional key layers between the original two layers. The keys cannot be made to intersect, and they may not create the visual illusion of depth the way a true depth key does, but you can composite multi-layered graphics with layers that slide in and out between other layers.

In order to record a depth key, a 10-bit digital recorder with two channels (video and key) is required to retain depth information.

E-MEM® Effects Memory

E-MEM Effects Memory provides a way of storing switcher effects for later use. With E-MEM you can set up an effect and “learn” a snapshot of it into memory. Later, you can recall that effect at the touch of a button, and the switcher will immediately return to the state it was in when the effect was learned.

You can also learn automatic transitions as part of a stored effect. When you learn an auto transition with an effect into a register, recalling that register recalls the effect first, and then starts the stored transition automatically.

The E-MEM system includes 20 effects storage registers arranged in two “banks” of ten registers each. E-MEM register contents can be saved to disk using the floppy drive and menu display.

2-11

Section 2— Startup

System Setup: Using the Configuration Menus

The following procedures allow you to configure the 1200 system to your installation. Using the Configuration menus in the menu display, you can assign sources to the crosspoints, configure the inputs, set output levels, adjust system timing, and set other system parameters. These menu items are accessed through the Configuration menu (Figure 2-5) on the Menu Display subpanel.

System Params Define Inputs Crosspoints

CONFG

Outputs Timing Ports

GPI Tally

Figure 2-5. 1200 Configuration Menu Tree

Menu Pushbuttons and Knobs

The display panel includes pushbuttons and knobs that work interactively with the display menus to control the switcher:

The white menu “hot buttons” at the left of the display

■

activate the top level menus.

■

The black buttons and knobs surrounding the display are “soft” buttons and knobs that change function with each menu. Labels displayed along the bottom and right edges of each menu indicate the functions of the soft controls. The “>” display symbol indicates a lower level menu that you can view when you press the associated soft button.

4:3/16:9, Edit Field Dom, System Clock

Define Inputs, Select CK Source, Xpt Legends Map Inputs to Crosspoints Configure Outputs

Switcher Timing Adjustment

Serial Port Configuration

GPI Setup

Tally Relay Output Monitoring and Testing

2-12

■

Double-pressing one of the soft buttons next to the soft knobs restores the associated knob function to its default value.

■

The

[Exit]

button takes you up one menu level.

+ 166 hidden pages