Related Manuals for JLCooper Electronics DAFV2
Summary of Contents for JLCooper Electronics DAFV2
- Page 1 DAFV Digital Audio Follows Video Interface User Manual Second Edition www.jlcooper.com...
- Page 2 142 Arena Street El Segundo, CA 90245 U.S.A. Part Number for this manual: 932084 Product Names “DAFV ” and “Digital Audio Follows Video Interface” are property of JLCooper Electronics. All other product names are the property of their respective holders.
-
Page 3: Table Of Contents
Table of Contents Introduction ......................4 How the DAFV is Used ................... 5 Protocol Support and Pin Out ................6 Interconnections ....................7 Edit Controller Hookup ..................7 Video Switcher Hookup ..................7 Sync........................7 Power........................8 Audio Hookup ..................... 8 DAFV Basic Operation .................. -
Page 4: Introduction
Introduction The JLCooper DAFV interfaces an edit controller to a digital audio mixer, for automated audio-follows-video applications. DAFV receives RS-422 commands, using ESAM 2 and GVG 100 protocols. It then outputs MIDI commands to control your digital audio mixer. In the past, audio-follows-video mixers have been somewhat limited in flexibility and features. -
Page 5: How The Dafv Is Used
How the DAFV is Used Your digital audio mixer mixes the audio from various sources, typically at least two Video Tape Recorders (VTR’s). The output of the mixer goes to another VTR, called the Record VTR. JLCooper’s DAFV connects to your mixer using standard “MIDI” cables. The DAFV receives commands from an edit controller, so your mixer can do automatic transitions, that is, cuts and dissolves. -
Page 6: Protocol Support And Pin Out
Here is the minimum equipment required for an editing session using DAFV used in conjunction with a digital audio mixer: • A Compatible Digital Audio Mixer • The DAFV with its included power supply • Two VTR’s, whose stereo audio outputs go to the mixer •... -
Page 7: Interconnections
Interconnections Edit Controller Hookup An edit controller or video switcher controls the DAFV through a serial port. The port may be on a plug-in card or outboard interface box. Some edit controllers have a dedicated port just for an audio mixer. Other edit controllers have a dedicated port just for a video switcher. -
Page 8: Power
But ideally the system should be protected with a power conditioner that includes both surge suppression and line filtering. Being plugged into conditioned power should protect the mixer, edit controller, switcher, VTRs, and DAFV2. Audio Hookup You may connect the output of several audio sources to your mixer, such as VTRs, DATs, Microphones, and CDs. -
Page 9: Dafv 2 Basic Operation
DAFV Basic Operation Signal Indicator On the right side of the front panel is an LED that will show you if your DAFV receiving messages. When the DAFV first receives RS-422 data it momentarily flashes ON. Once it has received either ESAM2 or GVG protocol it will turn on solid. Subsequent RS-422 commands will cause it to flash Off momentarily. -
Page 10: Selecting Mono/Stereo/Quad Operation Mode
Yamaha DM1000/DM2000/02R96 SW1 ....... On SW2 ....... On SW3 ....... Off SW4 ......Off Tascam TM-D1000/MIDI Volume SW1 ......Off SW2 ......On SW3 ......On SW4 ......Off Mackie D8B SW1 ....... Off SW2 ......Off SW3 ......On SW4 ...... -
Page 11: Setting Up The Mixer
DIP switches 7 and 8 are used to select the operation mode: Mono Mode SW7 ....Off SW8 ....Off Stereo Mode SW7 ....On SW8 ....Off Quad Mode SW7 ....Off SW8 ....On Setting Up the Mixer The DAFV controls the mixer using MIDI commands. -
Page 12: Yamaha 03D
Yamaha 01V Select MIDI Setup screen. Under receive (Rx), set Control Change to ON. Param Change to OFF. Confirm also the PORT is set to MIDI. Yamaha 03D Select MIDI Setup screen. Under receive (Rx), set Control Change to ON. Param Change to OFF. -
Page 13: Preparing For The Edit Session
Preparing for the Edit Session Monitoring Audio Prior to doing any editing, verify your audio hookup. At least you will want to make sure you can monitor (listen to) every audio channel and set record and playback levels. Since each mixer and mixer application is different, if you are new to mixing, have an experienced person help you set up your mixer. -
Page 14: Setting Record Vtr Input And Output Levels
Setting Record VTR Input and Output Levels Before the session, the input and output levels should be set on the Record VTR. Using a tone generator, oscillator, or test tape, play tone into the record VTR. Adjust the tone level at the source for 0 VU. Put the Record VTR into EE, that is, you want the Record VTR’s meters to monitor the input signal. -
Page 15: Audio Editing Procedures
Audio Editing Procedures Program and Preset Bus DAFV works in a manner similar to a video switcher. Input audio sources are assigned to Program or Preset buses. The buses toggle, that is, change places after a transition. What was once the Preset bus becomes the Program Bus, and vice versa. -
Page 16: Edit Controller Operation
A Cut is a fast transition, one occurring within an interval of a frame, is usually called a Cut instead of a crossfade. An edit controller can only change the transition time, the time it takes to fade out a machine while fading in another machine. -
Page 17: Machine Crosspoint Numbers
Machine / Crosspoint Numbers The user interface of an edit controller is the Edit Decision List (EDL). The EDL allows the user to define edits by specifying a machine or crosspoint number, edit point, type of edit, and transition time. The EDL is where edits are entered and edited, and then executed. -
Page 18: Procedures For Edit Controlled Dissolve
• Select the inputs that will go to the Record VTR after the cut. Select by entering machine / crosspoint numbers and destination bus on the edit controller. • Monitor the edit off of the Record VTR. • Set the input levels by playing the source VTRs and match levels with VTR outputs or mixer input trims. -
Page 19: Mix Under Mix (Ducking)
Mix Under Mix (Ducking) When working with music and dialogue, there are times when the project calls for an edit that begins with music. Then, dialogue comes in and the music level drops. When the dialogue is finished, the music must return to its exact previous levels. This is called Ducking. -
Page 20: Technical Information
Technical Information DAFV Protocols and DIP Switches This document covers the serial RS-422 protocol used by the JLCooper Electronics DAFV ESAM/GVG-to-Digital Mixer converter. It also covers DIP switch settings. Electrical As implemented on the DAFV , the RS-422 protocol is at 38.4 kBaud, with 8 data bits and one parity bit. -
Page 21: Grass Valley Protocol
c) All Stop Command - 02 01 A0 Upon receipt of this string, the DAFV will send back a n 80 as acknowledgment, and stop any current transition in progress, and return to previous state. d) Program Crosspoint Command - 03 01 B4 nn Upon receipt of this string, the DAFV will send back an 80 as acknowledgment, and will use nn to set the Program Crosspoint input. - Page 22 Rear Panel DIP Switches 1 - 4 select the protocol for each type of mixer. Yamaha 02R (for 02R96 see below) SW1 ......Off SW2 ......Off SW3 ......Off Yamaha 01V/03D, Roland VM-C7100/VM-C7200 SW1 ......On SW2 ......Off SW3 ......
-
Page 23: Troubleshooting
Selecting Mono/Stereo/Quad Operation Mode The DIP switches on the DAFV sets three options for its operations: Mono/stereo/ quad operation, and model of mixer. DIP switches 7 and 8 are used to select the operation mode: Mono SW7 ....... Off SW8 ....... Off Stereo SW7 ....... -
Page 24: Warranty And Service
JLCooper Electronics Limited Factory Warranty JLCooper Electronics (“JLCooper”) warrants this product to be free of defects in materials or workmanship for a period of 12 months from the date of purchase. This warranty is non-transferable and the benefits apply to the original owner. Proof of purchase in the form of an itemized sales receipt is required for warranty coverage. - Page 25 ©2003 JLCooper Electronics. Product Names “DAFV ” and “Digital Audio Follows Video Interface” are property of JLCooper Electronics. All other product names are the property of their respective holders. JLCooper Electronics • 142 Arena Street • El Segundo, CA 90245 USA...
Need help?
Do you have a question about the DAFV2 and is the answer not in the manual?
Questions and answers