A little off-topic, but CRAZY! - diyAudio
Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 2nd April 2005, 01:39 AM   #1
diyAudio Member
 
Join Date: Jul 2004
Location: Columbus, OH
Default A little off-topic, but CRAZY!

This does have to do with speakers so bear with me...

I'm going from my computer to my Sonic Impact T-Amp. On the back of the T-Amp is a 1/8" stereo jack. If I pull the stereo jack out a little under halfway while music is playing, it takes the vocals out of the recording, and I can hear background vocals plain as day. With the plug like this, if I move the balance to the left, it plays left output on both speakers...if I move it to the right, it plays nothing but right output on both speakers. Why is it doing this, and better yet, HOW! It's an analog signal...I don't see how it can perfectly take out the vocals and let the instruments to play through perfectly? It's not like it's taking out a set frequency range. On a couple of songs I've done this to, it's only taken out the lead vocals, and left the background vocals perfectly intact. A lot of the time the background vocals have a lot of echo to them.

I had this same experience back in the late 90s on my Pentium 100. While playing an Alice in Chains CD in my CD-ROM I accidentally hit my computer, causing it to do this same thing. I could hit it to undo it, and hit it again and it would kick back in (not 100% of the time...sometimes it took a few hits hehe).

Anyhow, sorry if this is off topic but I figured you guys would know how this is happening.

Thanks!
  Reply With Quote
Old 2nd April 2005, 01:53 AM   #2
karma is offline karma  Canada
diyAudio Member
 
karma's Avatar
 
Join Date: Feb 2003
Location: hamilton,ontario
your removing the ground on the rca when u do that.

you can do that with a 2 channel amp by instaling left and right + output two one speaker. nothing new
Attached Images
File Type: jpg speaker.jpg (7.1 KB, 192 views)
  Reply With Quote
Old 2nd April 2005, 01:54 AM   #3
Speakerholic
diyAudio Moderator
 
Cal Weldon's Avatar
 
Join Date: Jan 2004
Location: Near Vancouver
I don't have a clue why it's happening. That once that happened to me but it stopped when the drugs wore off. I wonder if anyone else has had this happen?

Also, there are "off topic" and "everything else" sections you can post this kind of thing in.

Cal
__________________
Next stop: Margaritaville
Some of Cal's stuff | Cal Weldon Consulting
  Reply With Quote
Old 2nd April 2005, 02:00 AM   #4
karma is offline karma  Canada
diyAudio Member
 
karma's Avatar
 
Join Date: Feb 2003
Location: hamilton,ontario
lol yes in. Everything Else

  Reply With Quote
Old 2nd April 2005, 02:09 AM   #5
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
Quote:
Originally posted by karma
lol yes in. Everything Else

And, like magic...
__________________
And while they may not be as strong as apes, don't lock eyes with 'em, don't do it. Puts 'em on edge. They might go into berzerker mode; come at you like a whirling dervish, all fists and elbows.
  Reply With Quote
Old 2nd April 2005, 02:17 AM   #6
diyAudio Member
 
Join Date: Jul 2004
Location: Columbus, OH
karma, that worked! Pretty neat stuff LoL!
  Reply With Quote
Old 2nd April 2005, 06:20 AM   #7
Enzo is offline Enzo  United States
diyAudio Member
 
Join Date: Sep 2004
Location: Lansing, Michigan
Your stereo plug has the left and right on the tip and ring contacts, with the sleeve(shaft)as common. WHen you click it in half way, one side gets grunded and the other side contacts the one inout contact. What that amp channel sees is the two signals in series, but they are at opposite phase relationship.. Before the nitpickers hit me, the polarity reversal also reverses the phase of one side relative to the other. SO things panned to center - where vocals almost always are - and in phase side to side - as vocals almost always are - will cancel. But parts of the music that differ between channels will essentially be unaffected.

So the vocals cancel out and disappear. but the left and right stuff sums together and you get what you heard.

If you ever see an ad in the back of the magazine for vocal eliminators, that is all it is, one channel is inverted and they are summed together, neatly cancelling out the vocals. It's an old trick.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Another PSU topic Ted205 Chip Amps 0 24th November 2008 02:55 PM
Reading all of a topic - how...? Stuey Everything Else 3 12th February 2008 08:58 AM
AudioSector- off topic karma Solid State 20 5th April 2006 06:06 AM
Off Topic[sort Of] BOB LEWIS Everything Else 4 12th January 2006 02:49 PM
awy off topic MD Everything Else 8 20th July 2002 06:07 AM


New To Site? Need Help?

All times are GMT. The time now is 12:44 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2