Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

Audio phase scope and multi segment meters
Audio phase scope and multi segment meters
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
Thread Tools Search this Thread
Old 19th January 2006, 10:04 PM   #1
rockstudio is offline rockstudio  United States
diyAudio Member
Join Date: May 2005
Location: St. Simons Island, GA
Default Audio phase scope and multi segment meters

Hello all, I have a project idea that I need help with. I am interested in making a rack mounted unit for my studio that contains a phase scope and a large multi segment meter for the stereo buss. The unit would be very simple patch to the output of the definitive device in my recording chain. The unit would have a scope on/off toggle and a meter on/off toggle and a power toggle.
I haven't seen anything like this around. I know the old consoles would have a scope meter on them. This unit could possibly employ a similar needle style scope. Is there a way to purchase the master output section of a console for this purpose? I think building a rack unit is the way to go. I hope some members will have an interest in this kind of device. Please let me know if you are interested to help design this. I am not an engineer but I really think this unit would be great for the studio.
  Reply With Quote
Old 21st January 2006, 04:45 AM   #2
Enzo is offline Enzo  United States
diyAudio Member
Join Date: Sep 2004
Location: Lansing, Michigan
Commercial VU meter units can be purchased. And the circyuit to build your own VU display can be lifted from any schematic that includes one.

Not sure what you mean by phase scope, but if I am right, all you need is any scope that has X-Y capability. One channel feeds the X driver and one feeds the Y driver. The exact signal into the two will create a diagonal line trace. Real signals will be sloppier.
  Reply With Quote
Old 23rd January 2006, 03:18 AM   #3
rockstudio is offline rockstudio  United States
diyAudio Member
Join Date: May 2005
Location: St. Simons Island, GA
Thanks. I think designing an actual master phase and meter would be very useful in a studio where you can't afford the pro versions. I'll keep looking for a phase scope and a meter schematic.
  Reply With Quote
Old 31st January 2006, 11:00 PM   #4
EC8010 is offline EC8010  United Kingdom
diyAudio Moderator Emeritus
EC8010's Avatar
Join Date: Jan 2003
Location: Near London. UK
An audio vectorscope (that's the proper name for it) is an expensive device. Building your own is expensive. The cheapest solution by far is to buy a second-hand <20MHz twin-channel oscilloscope for about 100 and take R to Ch1, L to Ch2, then switch it into XY mode. Choose an older 'scope with a round tube rather than a square one. With the power unplugged, remove the cover, and rotate the tube by 45 degrees clockwise as seen from the back. The effect will be that a mono signal will produce a vertical straight line and out-of-phase will be horizontal. Left will be at 10, R at 2.
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
  Reply With Quote


Audio phase scope and multi segment metersHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
How To Use My O-Scope for Audio Measurements DreadPirate Parts 1 19th September 2008 11:10 PM
Multi-Device Audio/Video? Ludapower Everything Else 1 24th December 2006 06:46 AM
Scope connection on Audio Dummy load Tarzan Equipment & Tools 9 27th August 2004 07:34 PM
Multi Channel Audio Delivery jeanfernandes Analogue Source 0 30th June 2004 05:03 AM
Experience with Galaxy Audio CheckMate SPL Meters? cfitz Multi-Way 2 13th November 2003 07:34 PM

New To Site? Need Help?

All times are GMT. The time now is 06:36 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio