DSP Xover project (part 2) - Page 86 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

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 8th April 2013, 08:55 PM   #851
chaparK is offline chaparK  Luxembourg
diyAudio Member
 
Join Date: Apr 2010
Location: Luxembourg
Hi Ake,

The +5V mark on the silkscreen is not a polarity mark, it just says 'this is the 5V input port'.

The polarity is as in the manual and on the diagram supplied with your board.

In case of doubt you can also look at the traces on the PCB and/or test with a meter

Looking forward to seeing your build!

Best,

Nick
__________________
Najda DSP

Last edited by chaparK; 8th April 2013 at 09:00 PM. Reason: word missing... it's late :D
  Reply With Quote
Old 8th April 2013, 11:58 PM   #852
diyAudio Member
 
Join Date: Aug 2003
Location: Santa Cruz, California
Quote:
Originally Posted by chaparK View Post
Hi DSP_Geek,

Quote:

BTW, have you considered daisychaining multiple DSPs? After the first extra one it's pretty well plug & play from what I understand.

Hmm not really. What would you daisy-chain DSPs for?
More processing cycles. You can run multiple channels from one DSP to the next and split processing duties between them, at the very least have left on one DSP and right on the other, kind of useful when long FIRs are involved.
  Reply With Quote
Old 9th April 2013, 10:40 AM   #853
Rixsta is offline Rixsta  United Kingdom
diyAudio Member
 
Join Date: Feb 2004
Location: Barrow-In-Furness, Cumbria
Send a message via Skype™ to Rixsta
Hi, is there a project on this forum or anywhere that i can make a
4x mono (2x stereo) input (8 mono ins prefered)
4x mono output

USB device to connect to the PC and record my bands music on ?
__________________
www.Rixsta.co.uk Free music recorded by me/DIY pics Currently Selling, amps=Zen V4, Zen-lightenment‎, Jean Hiraga 20w, F5, F5T
  Reply With Quote
Old 9th April 2013, 10:57 AM   #854
JLOP is offline JLOP  France
diyAudio Member
 
Join Date: Sep 2011
Location: Luxembourg
Quote:
Originally Posted by DSP_Geek View Post
More processing cycles. You can run multiple channels from one DSP to the next and split processing duties between them, at the very least have left on one DSP and right on the other, kind of useful when long FIRs are involved.
Sounds great for the power hungry. BTW I recall I saw some processors on the market with two DSPs from the start.
  Reply With Quote
Old 9th April 2013, 06:07 PM   #855
diyAudio Member
 
Join Date: Aug 2003
Location: Santa Cruz, California
Quote:
Originally Posted by JLOP View Post
Sounds great for the power hungry. BTW I recall I saw some processors on the market with two DSPs from the start.
Yup. I recommended them for the previous day job. Besides, there's no such thing as too much power.
  Reply With Quote
Old 9th April 2013, 06:20 PM   #856
diyAudio Member
 
Join Date: Dec 2004
Location: Bakersfield, CA
Quote:
Originally Posted by JLOP View Post
Sounds great for the power hungry. BTW I recall I saw some processors on the market with two DSPs from the start.
The Datasat AP20/ RS20i Audio Processors have 6 400 mHz Analog Devices SHARCs onboard

AP20 | Datasat Digital Entertainment and RS20i | Datasat Digital Entertainment
__________________
Best Regards,
Carl Huff
  Reply With Quote
Old 9th April 2013, 07:04 PM   #857
boris81 is offline boris81  United States
diyAudio Member
 
Join Date: Oct 2009
Location: white plains, ny
chaparK,
Did you see that S. Linkwitz is looking for a DSP replacement for his analog crossover?
Your board will be a good candidate.
DSP_challenge
  Reply With Quote
Old 9th April 2013, 07:39 PM   #858
chaparK is offline chaparK  Luxembourg
diyAudio Member
 
Join Date: Apr 2010
Location: Luxembourg
Quote:
Originally Posted by boris81 View Post
chaparK,
Did you see that S. Linkwitz is looking for a DSP replacement for his analog crossover?
Your board will be a good candidate.
DSP_challenge
Yes I had already seen that, but thanks for posting.

Interestingly, it seems that Mr Linkwitz is not too much in favor of FIR filtering.
__________________
Najda DSP
  Reply With Quote
Old 9th April 2013, 09:00 PM   #859
diyAudio Member
 
Join Date: Feb 2013
Quote:
Originally Posted by chaparK View Post
Yes I had already seen that, but thanks for posting.

Interestingly, it seems that Mr Linkwitz is not too much in favor of FIR filtering.
He doesn't like pre-echo but of course not all FIRs have that problem...

FIR doesn't have to be linear phase.
  Reply With Quote
Old 9th April 2013, 09:02 PM   #860
diyAudio Member
 
Join Date: Feb 2013
I should perhaps add that I'm building the LX521 and intend to drive i in full 4-way configuration with the Najda board.
  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
DSP Xover project chaparK Digital Line Level 141 3rd July 2011 10:16 AM
Help Please for simple active Xover project dcathro Analog Line Level 4 9th September 2010 05:47 AM
Violet DSP Evolution - an Open Baffle Project cuibono Multi-Way 211 18th May 2010 02:26 AM
Software digital DSP ... Xover/filters/EQ ?? JinMTVT Digital Source 2 8th October 2004 06:02 AM
DSP card & proper xover for heathkit 859A speaker cabinet x. onasis Multi-Way 6 22nd April 2003 07:39 PM


New To Site? Need Help?

All times are GMT. The time now is 12:24 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