[sdiy] stereo output questions.....

[Roy J. Tellason]

On Saturday 29 November 2008 09:21:17 am Nate Reeves wrote:
> http://www.rane.com/note110.html
>
> this is always a good note to look at when the stereo TRS confusion
> arises from time to time
>
> Cheers,
>
> Nate

Wow,  there's a lot of good info there...!

> On Nov 27, 2008, at 6:15 PM, Neil Johnson wrote:
> > Actually, its 'jack plug' and 'jack socket', but to follow your
> > analogy shouldn't it be 'jackie socket'..?
> >
> > Neil
> >
> > On 27 Nov 2008, at 21:20, 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+s
> >>leev 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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> >>
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> >
> > --
> > http://www.njohnson.co.uk
> >
> >
> >
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