wireless boom issues - Page 2 at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > All Things Audio

All Things Audio
Everything Audio, from acquisition to postproduction.


Reply
 
Thread Tools Search this Thread
Old December 16th, 2005, 03:24 PM   #16
Inner Circle
 
Join Date: Mar 2005
Location: Hamilton, Ontario, Canada
Posts: 5,742
An FYI where the problem comes about. A stereo to mono TRS to TS adapter would connect both the TRS tip and ring connectors together to the TS tip while the TRS and TS sleeves would also connect together. If the TRS was wired to an XLR, the tip would get the "hot" XLR pin 2, the ring would be the "cold" XLR pin 3, and the sleeve the ground XLR pin 1. This means that the two sides of the signal would be shorted together at the mono TS plug, since both tip and ring are connected to the TS plug tip, and it's a miracle that anything gets through.

Bought a couple of TRS to Phono plug adapters a few weeks ago and found another oddball. The phonos are colour coded white and red. This usually means left and right channels respectively, at least in consumer stereo gear (such as the line inputs on most DV cameras). But these particular adapters are actually intended for mixer inserts and they follow the pro wiring colour code convention of red wire being the tip and white wire being the ring. On a stereo TRS like a headphone, the tip is left channel and the ring is right. This means that the TRS-phono adapter will reverse the channels if one connects them following the colour code one is used to with consumer stereo gear - right channel appearing on the WHITE connector instead of the RED connector as expected. Just one more "gotcha" to be on the alert for!
__________________
Good news, Cousins! This week's chocolate ration is 15 grams!
Steve House is offline   Reply With Quote
Old December 16th, 2005, 04:44 PM   #17
Slash Rules!
 
Join Date: Apr 2002
Location: Houston, Texas
Posts: 4,723
Interesting. I might just buy the "correct" parts, though I don't know when, if ever, I'll need the wireless boom setup again.

As for frequencies, the Sennheiser's set to the default, that is, whatever it was on when it came out of the box, and it's always worked everywhere I've used it when it was used as a lavalier. I did the wireless boom test in my house, and I've also used the lav in my house, and it was always fine. I hope I can find that receipt. Those cables were $25.
Josh Bass is offline   Reply With Quote
Old December 16th, 2005, 05:16 PM   #18
Inner Circle
 
Join Date: Mar 2005
Location: Hamilton, Ontario, Canada
Posts: 5,742
Quote:
Originally Posted by Josh Bass
Interesting. I might just buy the "correct" parts, though I don't know when, if ever, I'll need the wireless boom setup again.

As for frequencies, the Sennheiser's set to the default, that is, whatever it was on when it came out of the box, and it's always worked everywhere I've used it when it was used as a lavalier. I did the wireless boom test in my house, and I've also used the lav in my house, and it was always fine. I hope I can find that receipt. Those cables were $25.
Those threaded TRS miniplugs that are correct for the Sennheiser transmitter are a little hard to come by. Something like the adapter cable from Trew that I mentioned before would be a lot less hassle and "rolling your own" wouldn't save more than a few dollars, hardly worth the trouble. If it takes you an hour to put it together, that translates to $50 or so labour cost to add to the parts cost.
__________________
Good news, Cousins! This week's chocolate ration is 15 grams!
Steve House is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > All Things Audio

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 11:24 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network