[sdiy] stereo output questions.....

[harrybissell at wowway.com]

we might use the more modern "ho"

(ho ho ho.... :^)

H^) harry




On Thu, 27 Nov 2008 16:20:19 -0500, jvastine wrote
> ...this has been an informative thread...perhaps somebody knows the 
> answer to this: Now we all know that connectors have 2 components, 
> the male component commonly called a plug and the female component 
> commonly called a jack. I am sure that everybody understands the 
> male/female references here, so with this in mind, why isn't the 
> plug called a jack & the jack called a jill?
> 
> Just a bit of food for thought or a good laugh!
> 
> jvastine
> 
> ---- Adam Schabtach <lists at studionebula.com> wrote: 
> Uli Berhinger wasn't even born when the term TRS was coined. See this
> reference:
> http://books.google.com/books?id=BFcJAAAAIAAJ&pg=RA11-PA36&dq=tip+ring+sleev
> e+date:0-1922&as_brr=1
> That's from a book published in 1907. Also see:
> http://books.google.com/books?id=d7ft6F8ZUdcC&pg=PA64&ots=1f0MXwIa6s&dq="pho
> ne+plug"+"phone+jack"&sig=seKs_oIeUQ-H70mdDWp7cdMqruw#PPA64,M1
> That's a 20-year-old Yamaha publication. Note that no mention of 
> _wiring_ is attached to the diagrams for the TRS connectors. Also 
> see pages 291-294 for usage of the term TRS independent of wiring.
> 
> The product page you cite in fact says "fully balanced high-quality 
> 1/4" TRS connectors". If "TRS" implied balanced, why would they use 
> "balanced" in that statement? It would be redundant. Ditto for the 
> description of a dbx product here: http://www.dbxpro.com/166XL/166XL.php
> Note the bullet item "Balanced inputs and outputs on 1/4" TRS and 
> XLR". The manual for that product says "SIDECHAIN INSERT Jack: This 
> jack accepts a standard TRS 1/4" phone plug and provides a 
> connection to the 166XL detector path. The RING acts as a Send,
>  carrying a buffered version of the signal present at the 166XL 
> INPUT jack, at an impedance of 2k[ohm]. The TIP acts as a Return for 
> equipment to feed the 166XL's detector circuitry, such as an 
> equalizer for de-essing or frequency sensitive gating/compression."
> 
> Seems to me that manufacturers agree with me.
> 
> --Adam
> 
> > -----Original Message-----
> > From: Graham Atkins [mailto:gatkins at blueyonder.co.uk] 
> > Sent: Thursday, November 27, 2008 1:12 PM
> > To: lists at studionebula.com
> > Cc: 'sdiy'
> > Subject: Re: [sdiy] stereo output questions.....
> > 
> > A 3-circuit 1/4" jack can be used to carry stereo audio but 
> > many companies are usig them to carry balanced audio 
> > presumably because XLR connectors would add to the cost. They 
> > have traditionally been refered to as a stereo jack.
> > The use for balanced audio is relatively recent and the name 
> > "TRS" is used for this purpose. With headphones you have 
> > either a mono or stereo jack, not TRS. Just look at a few 
> > manufacturers such as this :-
> > 
> > http://www.behringer.com/PX1000/?lang=ENG
> > 
> > Graham
> > On 27 Nov 2008, at 19:30, Adam Schabtach wrote:
> > 
> > > Um, no, Jure is right. TRS refers to the physical connector; it has 
> > > nothing to do with the signal you carry on the connector. 
> > Consider a 
> > > pair of stereo
> > > headphones: it uses a TRS plug and carries an unbalanced pair of 
> > > signals.
> > > TRS jacks are also used on some mixing desks for patching insert 
> > > effects.
> > > One conductor carries the "send" signal, the other carries the 
> > > "return"
> > > signal, and the sleeve is used for ground.
> > >
> > > Or, for a second opinion: 
> > http://en.wikipedia.org/wiki/Tip_ring_sleeve
> > > (Not that Wikipedia is the definitive reference, but it does have a 
> > > lengthy
> > >>>>
> > 
> >
> 
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Harry Bissell & Nora Abdullah 4eva