Red, blue, left, right? at DVinfo.net

Ralf Strandell · May 26th, 2006, 05:42 AM

Hi,

An embarrassingly trivial question:

Could someone remind me of whioch one is the left channel?
Blue or red? I would guess blue, but I'm not sure.
And which one is usually sent to CH1 input?

Greg Boston · May 26th, 2006, 05:52 AM

Ralf,

I don't know about blue, but typically it is Red for right channel and White for left channel. I remember it by saying to myself that 'red' and 'right' both begin with the letter 'r'.

Hope this helps,

-gb-

A. J. deLange · May 26th, 2006, 06:27 AM

I use the same mnemonic as Greg but I'm a little troubled by your question because component video connectors are usually color coded Blue, Red and Green. Are you sure you have got the end of the right cable?

Steve House · May 26th, 2006, 06:48 AM

There's connector colours and there's cable colours. For a stereo pair, the connector colours are Red for Right and White for Left. But just to make things interesting, within a pair+shield cable such as a mic cable with XLRs on each end or a blanced patch cable with two 1.4" TRS connectors there's a red wire and one of another color (black or white). The red wire goes to the tip of a TRS connector or pin 2 of an XLR connector. The black or white wire goes to the ring of the TRS or pin 3 of an XLR. Stereo plugs are TRS but the TIP is the left channel and the ring is the right. So consider a common TRS stereo to RCA stereo pair adapter. The TRS tip connects to the red wire in the cable which goes to the white RCA plug while the TRS ring connects to the white wire in the cable which goes to the red RCA plug! That's when I haul out the ohmeter and check for sure to make sure I've got it right and the cable is wired correctly. A few months ago I bought a 3-pack of TRS stereo jack to stereo pair RCA plug adapters - with two of them the jack's tip went to the white, left RCA plug and the ring to the red RCA. But on one of them it was reversed with the jack's tip to the red RCA plug and the ring to the white. Moral of the story - always double check with a meter!.

Gian Pablo Villamil · May 26th, 2006, 07:31 AM

Quote:

Originally Posted by Ralf Strandell

Hi,

An embarrassingly trivial question:

Could someone remind me of whioch one is the left channel?
Blue or red? I would guess blue, but I'm not sure.
And which one is usually sent to CH1 input?

Right = red = channel 2.

A. J. deLange · May 26th, 2006, 04:11 PM

Just thought of another mnemonic beloved of sailors: "Red buoy right returning."

Ralf Strandell · May 27th, 2006, 11:34 AM

Thanks! Your great help made life a little easier, again.

A.J, this cable has a female 5 pin XLR connector on one end and two 3 pin male XLR connectors on the other end. It is used to connect an AT825ST one-point X/Y stereo mic to a small camcorder (PDX-10). I'll try to provide a little more detail next time.

May 26th, 2006, 05:42 AM	#1
Ralf Strandell Regular Crew Join Date: Jan 2004 Location: Europe Posts: 180	Red, blue, left, right? Hi, An embarrassingly trivial question: Could someone remind me of whioch one is the left channel? Blue or red? I would guess blue, but I'm not sure. And which one is usually sent to CH1 input?

May 26th, 2006, 06:48 AM	#4
Steve House Inner Circle Join Date: Mar 2005 Location: Hamilton, Ontario, Canada Posts: 5,742	There's connector colours and there's cable colours. For a stereo pair, the connector colours are Red for Right and White for Left. But just to make things interesting, within a pair+shield cable such as a mic cable with XLRs on each end or a blanced patch cable with two 1.4" TRS connectors there's a red wire and one of another color (black or white). The red wire goes to the tip of a TRS connector or pin 2 of an XLR connector. The black or white wire goes to the ring of the TRS or pin 3 of an XLR. Stereo plugs are TRS but the TIP is the left channel and the ring is the right. So consider a common TRS stereo to RCA stereo pair adapter. The TRS tip connects to the red wire in the cable which goes to the white RCA plug while the TRS ring connects to the white wire in the cable which goes to the red RCA plug! That's when I haul out the ohmeter and check for sure to make sure I've got it right and the cable is wired correctly. A few months ago I bought a 3-pack of TRS stereo jack to stereo pair RCA plug adapters - with two of them the jack's tip went to the white, left RCA plug and the ring to the red RCA. But on one of them it was reversed with the jack's tip to the red RCA plug and the ring to the white. Moral of the story - always double check with a meter!. __________________ Good news, Cousins! This week's chocolate ration is 15 grams!

May 26th, 2006, 05:52 AM	#2
Greg Boston Wrangler Join Date: Oct 2003 Location: DFW area, TX Posts: 6,117 Images: 1	Ralf, I don't know about blue, but typically it is Red for right channel and White for left channel. I remember it by saying to myself that 'red' and 'right' both begin with the letter 'r'. Hope this helps, -gb-

May 26th, 2006, 06:27 AM	#3
A. J. deLange Major Player Join Date: Jun 2004 Location: McLean, VA United States Posts: 749	I use the same mnemonic as Greg but I'm a little troubled by your question because component video connectors are usually color coded Blue, Red and Green. Are you sure you have got the end of the right cable?

May 26th, 2006, 04:11 PM	#6
A. J. deLange Major Player Join Date: Jun 2004 Location: McLean, VA United States Posts: 749	Just thought of another mnemonic beloved of sailors: "Red buoy right returning."

May 27th, 2006, 11:34 AM	#7
Ralf Strandell Regular Crew Join Date: Jan 2004 Location: Europe Posts: 180	Thanks! Your great help made life a little easier, again. A.J, this cable has a female 5 pin XLR connector on one end and two 3 pin male XLR connectors on the other end. It is used to connect an AT825ST one-point X/Y stereo mic to a small camcorder (PDX-10). I'll try to provide a little more detail next time.