audio cabling issues
by psevideo1
on
Feb 21, 2006 at 3:10:41 pm
currently I am setting up a new system, off of an I/O. I have two decks, dsr-2000 dvcam, and PVW-2800 beta sp. and a 8 channel mackie board. the dsr200 is connected In/out using SDI which I am assuming carries video and audio signal. the 2800 has 2 in/outs analog. So my plan is to route the 2800 audio out to the board(1-2) then from the board out to the I/0(1-2).
Question 1. When coming out of the I/O I should connect directly to the IN's on the 2800 or do I need to go back through the board and have the board out on a patch bay? (out 1 I/O, out 2 2800)
Next I will need to monitor audio from the two decks and maybe the aja. the drs2000 has four audio outs so I will connect them to the board (chan 3,4,5,6) the 2800(chan 1,2) I/O (chan 7,8)
Question 2. If I was trying to make a dub from 2000-2800 does the io have a direct pass through (2000 to board to I/O in, then I/O out to 2800 or again do I need to set up a patchbay
Re: audio cabling issues by Bob Zelin on Feb 21, 2006 at 11:33:57 pm
Jason - your mixer is too small, but replies below -
Question 1. When coming out of the I/O I should connect directly to the IN's on the 2800 or do I need to go back through the board and have the board out on a patch bay? (out 1 I/O, out 2 2800)
REPLY - you have a small system. You certainly can purchase a patch bay, but what you really need is custom cabling. All the outputs of your VTR's and AJA I/O need to go into the mixer, and the Main Out of your Mackie 1202VLZ need to be split, so you can feed the input of your AJA I/O and input of your PVW2800. The DSR can be fed with embedded audio, but without wiring the input of the DSR, you won't be able to dub from Beta to DSR. Notice that your Mackie 1202VLZ has XLR MAIN outputs on the rear of the mixer, and 1/4" TRS MAIN outputs on the top of the mixer. You can use one set to feed the AJA I/O, and one set to feed the input of the PVW2800. Remember to take all the outputs of everything, and feed the inputs (the 1/4" TRS line inputs - NOT THE XLR's !) of the Mackie 1202.
Next I will need to monitor audio from the two decks and maybe the aja. the drs2000 has four audio outs so I will connect them to the board (chan 3,4,5,6) the 2800(chan 1,2) I/O (chan 7,8)
REPLY -
Once all your sources (the DSR, the I/O and the PVW2800) are plugged into the inputs of your Mackie 1202, you simply connect your speakers to the Control Room Output of your Mackie 1202. Increase the "fader knobs" of your Mackie, turn up Control Room volume knob, and you will hear your sources.
Question 2. If I was trying to make a dub from 2000-2800 does the io have a direct pass through (2000 to board to I/O in, then I/O out to 2800 or again do I need to set up a patchbay
REPLY - for video and time code alone, you really need patch bays here, but for audio, if you wire it the way I said, you simply raise the "knob faders" on the DSR2000, and it will come out of the MAIN OUT L-R of the Mackie mixer, and feed the input to the PVW2800.
Additional REPLY -
You will find that you can jury rig anything, and make it work, and certainly small installs don't necessarily need patch bays, but as time goes on, and you say "I want to go from machine X to machine Y, how come it does not work" - you will find that the cheapest way to get around this is with patch bays. I have recently started using the EXCELLENT Behringer PX-3000 aduio patch bay ($49.95) that has all balanced 1/4" TRS jacks. As long as you cable tie off the cables (so they don't get yanked out of the back of the bay), it is very reliable, and very quiet (no scratchy noisy jacks). I have been using ADC professional audio bays my entire career, and I am shocked how good and reliable this 50 dollar audio bay is (if you tie off your cables, so they don't fall off the back of the bay).
Video patch bays are not inexpensive. If you find the need to go "from here to there", and don't want to route everything thru your AJA I/O, a Canare 242U-DVJAW from Markertek is $519, and is excellent, and can handle everything including HD. If you get advice on small routers (like Laird, Kramer, Knox, Tecnec, etc.),, you will find that these routers are usually too small, and are not MULTI FORMAT to handle SDI, Composite, Component, AES audio, Analog Audio, time Code, etc. Patch bays work better and cheaper.
With that said, you can certainly get away with buying NOTHING other than the correct cabling - or hire a freelance tech to wire up an audio mixer
harness for you to do this job. Most people just have custom cabling, and do not rely on patch bays or routers.
