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

Solid State Talk all about solid state amplification.

Line level signal delay circuit
Line level signal delay circuit
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 25th September 2004, 01:56 PM   #1
wigginjs is offline wigginjs  United States
diyAudio Member
 
wigginjs's Avatar
 
Join Date: Dec 2003
Location: Columbia, SC
Default Line level signal delay circuit

Anyone have a design for a circuit that would delay a line level signal by an adjustable amount of time? I plan to use it in between my active crossover's outputs and the input for my tweeter amps in order to achieve proper phase alignment of my drivers without having a stepped baffle. Any other comments on this idea would be very welcome.
  Reply With Quote
Old 26th September 2004, 08:35 AM   #2
Jan Dupont is offline Jan Dupont  Denmark
diyAudio Member
 
Jan Dupont's Avatar
 
Join Date: Apr 2003
Location: Copenhagen, Denmark
Send a message via MSN to Jan Dupont
The only "simple" way I know of are using a Bucket Brigade Delay
circuit.
Click here to see more:
http://www.web-ee.com/Electronic-Pro...ata/mn3004.pdf
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Spare time company (just for fun): www.dupont-audio.com
  Reply With Quote
Old 26th September 2004, 02:22 PM   #3
cocolino is offline cocolino  Germany
diyAudio Member
 
cocolino's Avatar
 
Join Date: May 2002
Location: Bavaria (south of veal sausage equator)
A pure time delay is not easy to achieve with analog technology (digital would be better choice).

With allpass filters an approximation of a time delay is possible. However, for high frequencies and/or long delays You`d need a lot of OP-Amp. filter stages in series (noise, distortion).
Depending of the requirements of your application, maybe You can still get away with "reasonable" amounts of circuity in the signal path.

For an entry take a look here:

http://www.linkwitzlab.com/filters.htm#4

for more information google the web for: time-delay, allpass filters
You`ll find plenty to read
__________________
Christoph
STEAL the BEST - INVENT the REST
  Reply With Quote
Old 26th September 2004, 02:51 PM   #4
Eva is offline Eva  Spain
diyAudio Member
 
Eva's Avatar
 
Join Date: Oct 2003
Location: Near the sea
Send a message via MSN to Eva
Consider using cascoded allpass filters. I've used them succesfully to get good on-axis summing across the crossover region in multi-way horn loaded systems [the hardest situation so far]
  Reply With Quote

Reply


Line level signal delay circuitHide 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
Audio Delay 0-20 millisec DIY?Matching miked and line signal majshumlan Instruments and Amps 4 12th December 2008 07:36 AM
Splitting A Line Level Signal. Noumenon Analog Line Level 0 10th August 2007 12:57 PM
How do I turn an high current signal into a line level signal?? sardonx Tubes / Valves 8 27th August 2005 11:16 AM
Line level signal delay circuit wigginjs Parts 2 24th September 2004 11:36 AM
how to bring down line level signal to preamplifier level deji Solid State 15 15th April 2004 04:13 PM


New To Site? Need Help?

All times are GMT. The time now is 08:36 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
Wiki