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Author Topic: Bridging two audio sources together into one NS input...doable? Jackson Gilman Film Handler Posts: 37 From: Madison, WI, USA Registered: Jan 2004 posted 12-11-2004 07:08 PM                     This is embarrasing. Someone sabataged our booth a while back forcing us to run movies in that theater on a DVD player and LCD projector. Consequently, we're running the audio from the DVD into the NS input on the processor, leaving us with no input for the intermission music. I'm wondering if it is safe to bridge the cd player leads and the DVD player leads together onto the Non-Sync IN terminals...or would we need a small mixer to accomplish that. Any comments most helpful (except mean ones.) -jackson  |  IP: Logged Michael Schaffer "Where is the Boardwalk Hotel?" Posts: 4143 From: Boston, MA Registered: Apr 2002 posted 12-11-2004 07:24 PM                        Basically yes, but you may run into problems with grounding (buzzing). It is always best if you tell us what equipment you have (in this case, specifically which sound processor), there should be far more elegant solutions like using the external digital inputs for the DVD source.  |  IP: Logged David Favel Jedi Master Film Handler Posts: 764 From: Ashburton, New Zealand Registered: Feb 2002 posted 12-11-2004 08:36 PM                     In my analougue house I have 2 non-syncs into a switching box with 1 outlet. (very simple) CP65 Digital houses have C.D. into non sync, DVD into 6 channel input CP650 Depends on equipment used  |  IP: Logged Nicholas Suchyta Film Handler Posts: 62 From: Washington, DC Registered: Nov 2003 posted 12-11-2004 09:12 PM                     You can order or buy some Y cables. RatShak, i mean, Radio shack has them, you'll need to get 2 of them, they have one male connector and 2 female connectors, this is the cheapest way to do it without any interference. They're like $3 a piece. If they dont have them email me and i can get you them.  |  IP: Logged Chris Hipp Phenomenal Film Handler Posts: 1462 From: Mesquite, Tx (east of Dallas) Registered: Jul 2003 posted 12-12-2004 02:21 AM                     I do just that on one of my houses with a basic AB switcher. works fine.  |  IP: Logged Carl Martin Phenomenal Film Handler Posts: 1424 From: Oakland, CA, USA Registered: Feb 2002 posted 12-12-2004 04:19 AM                        this is off topic i suppose, but i'm very curious what the story is behind this "sabotage". i assume it's not just vandalism, but a deliberate act to disable the equipment. competition? former employee? do tell. carl  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 12-12-2004 04:20 AM                     I'm more curious as to know how they are getting DVD copies of the movies.  |  IP: Logged Chase Hanson Expert Film Handler Posts: 172 From: San Diego, CA Registered: Oct 2004 posted 12-12-2004 04:45 AM                     AB switches are your friend. Heck you can buy a simple two position switch and solder away if you feel so inclined (and it has the proper operating specifications)  |  IP: Logged Oscar Neundorfer Master Film Handler Posts: 275 From: Senoia, GA Registered: May 2000 posted 12-12-2004 07:10 AM                        Jackson, Do NOT bridge the outputs of two devices together with y connectors or any other way. While it might work, the outputs of most devices are not designed to work into the load impedance presented by the output of another device. Levels will be lowered and distortion may result. Use an input selector switch of some kind such as can be found at Radio Shack.  |  IP: Logged John Hawkinson Film God Posts: 2273 From: Cambridge, MA, USA Registered: Feb 2002 posted 12-12-2004 08:12 AM                     Full agreement with Oscar; earlier comments recommending you do this are inadvisable. It is not safe to connect two outputs to a single input. It is safe to connect a single output to two inputs, but that is not your situation. It is even possible to damage equipment doing this, but invariably it will not sound as it should. See Rane Technical Note #109: Why not Wye?. --jhawk  |  IP: Logged Frank Angel Film God Posts: 5305 From: Brooklyn NY USA Registered: Dec 1999 posted 12-12-2004 05:38 PM                        Then again, this theatre is subjecting its audience to a DVD quality image projected by an LCD quality projector.....why not introduce a little distortion in the sound to match the image degradation? I bet they don't reduce the ticket price....I bet they charge the same as if they were showing a real movie. And does this theatre inform the public that they are paying top dollar for an inferior product? If they don't, I would think that would be considered fraud....selling a product without full disclosure and under false pretenses. Kind of like a merchant selling Gucci bags that were really made in Moldavia. Knock-off cinema. And I am with Brad; where do they get DVDs of current theatrical releases? Inquisitive minds want to know.  |  IP: Logged Dean Kollet Jedi Master Film Handler Posts: 591 From: Florida State University Registered: Jul 2003 posted 12-13-2004 12:40 AM                     yeah....and how did this "Force" you to place just DVDs...call a tech or something...  |  IP: Logged Ken Russell Film Handler Posts: 23 From: Smyrna, GA USA Registered: Jun 2004 posted 12-13-2004 07:30 AM                     Why not just play the CD in the DVD player?  |  IP: Logged David Favel Jedi Master Film Handler Posts: 764 From: Ashburton, New Zealand Registered: Feb 2002 posted 12-13-2004 04:02 PM                     Perhaps the DVDs are pre show?  |  IP: Logged Dean Kollet Jedi Master Film Handler Posts: 591 From: Florida State University Registered: Jul 2003 posted 12-14-2004 03:22 PM                     quote: Jackson Gilman Someone sabataged our booth a while back forcing us to run movies in that theater on a DVD player and LCD projector. sounds like movies to me...  |  IP: Logged

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