[sdiy] stereo output questions.....

[Simon Brouwer]

Dan Snazelle schreef:
> ok let me clear something up
>
> the reason for the stereo out IS NOT to create a stereo sound
>
> my friend (for some odd reason) simply wants to be able to plug in a cable that takes a stereo signal and splits it into 2 XLR cables.
>
> i know there are cables that split a TRS jack into 2 xlrs. i am not sure if there are ones that take a STEREO out and do the same. he was admittedly a little vague about the whole thing....
>
> which is why i am trying to be prepared for either option.
>
> but yes, it is coming from a mono VCA> and it doesnt need to SOUND like a stereo signal.
>   
Then I would connect two 1 kilo-ohm resistors at the output of the VCA 
(instead of the one that is normally provided, R310 or R360) and wire 
one to the tip and the other to the ring tab.
This way, when you connect a stereo plug, the same signal is present on 
the ring and on the tip. When you connect a mono plug, the ring will 
short one of the resistors to ground, but the opamp U301 or U351 should 
be able to drive the 1 kilo-ohm load and the signal will still be 
present on the tip. If you would just connect the tip and ring tabs 
together you would not have signal if you connected a mono plug.

-- 
Vriendelijke groet, 
Simon Brouwer. 

| http://nl.openoffice.org | http://www.opentaal.org |