Sharon - Digitally Corrected Pluto

mikemcd · 27th October 2007, 10:55 PM

http://members.cox.net/mikemcd/Sharon/Sharon.shtml

sdclc126 · 28th October 2007, 03:43 AM

Very interesting - I'm wondering if this sort of thing can be more or less universally applied to any desing?

BHTX · 28th October 2007, 04:10 AM

I don't see why not. Yes, very interesting indeed. I just downloaded it to check it out. I need to get a good mic though..
I hear the Behringer ECM8000 actually works pretty well? ..Can be had for under $50.

454Casull · 28th October 2007, 04:31 AM

You can DIY a mic from Linkwitz's plans.

Also, who's Steve Linkwitz?

mikemcd · 28th October 2007, 04:19 PM

Yes, this approach can be applied to many designs. If it can be done in a Honda S2000 (http://members.cox.net/mikemcd/S2000...rrection.shtml), it can be done almost anywhere.

And, yes, the Behringer ECM8000 works very nicely. Being off by 0.1 or 0.2 dB is not very important when the listening environment has a much larger impact.

Sjef · 29th October 2007, 04:04 PM

I have tried this software some time ago in combination with the foobar convolver plugin. It's not easy to setup and make good measurements but if you manage to do this right it's certainly worth the trouble. It works in some kind of the same way as my DEQX unit at about 1/1000 of the cost, that should sound interesting to the diy out here. But then again, nothing comes for free, you will have to do all the hard work yourself and start learning and expermenting with it for quite a long time before you get it right.

I have used it for a friends system. we made a totally foobar based system where the crossover and room correction was done in the foobar player, worked out very well, only drawback offcoarse is that it only works when using foobar, no other sources allowed anymore, but we didn't care about that.

mikemcd · 10th November 2007, 03:22 PM

Yes, the user interface is not user friendly. I built some Excel and Matlab scripts that automate the process somewhat. But, when you get finished, you will know quite a lot about DSP.

There is also a convolver for Windows Media Player, so that opens up some new sources.

jzagaja · 10th November 2007, 05:29 PM

Congratulations Mike! Nice work on Matlab graphs (I wish I could compute some). I'm building such a speaker with a horn loaded tweeter. I've tried DRC and Acourate but don't know how to use Windows Media Player for two way crossover+DRC (4 channels via Digigram 440VX).

Daveis · 10th November 2007, 10:31 PM

Quote:

Originally posted by mikemcd
Yes, this approach can be applied to many designs. If it can be done in a Honda S2000 (http://members.cox.net/mikemcd/S2000...rrection.shtml), it can be done almost anywhere.

Mike,

If the crossover was done in the digital domain, would you still use the Zobel on the woofer?

(this question has bugged me for years)

el`Ol · 11th November 2007, 03:17 AM

Is it the sense of a near omnidirectional design to cancel out the room reflections?

27th October 2007, 10:55 PM	#1
mikemcd diyAudio Member Join Date: Mar 2004 Location: xyz	Sharon - Digitally Corrected Pluto http://members.cox.net/mikemcd/Sharon/Sharon.shtml

28th October 2007, 03:43 AM	#2
sdclc126 diyAudio Member Join Date: Jan 2005 Location: San Diego, CA	Very interesting - I'm wondering if this sort of thing can be more or less universally applied to any desing? __________________ Soft Dome

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28th October 2007, 04:10 AM	#3
BHTX diyAudio Member Join Date: Feb 2006	I don't see why not. Yes, very interesting indeed. I just downloaded it to check it out. I need to get a good mic though.. I hear the Behringer ECM8000 actually works pretty well? ..Can be had for under $50.

28th October 2007, 04:31 AM	#4
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	You can DIY a mic from Linkwitz's plans. Also, who's Steve Linkwitz?

28th October 2007, 04:19 PM	#5
mikemcd diyAudio Member Join Date: Mar 2004 Location: xyz	Yes, this approach can be applied to many designs. If it can be done in a Honda S2000 (http://members.cox.net/mikemcd/S2000...rrection.shtml), it can be done almost anywhere. And, yes, the Behringer ECM8000 works very nicely. Being off by 0.1 or 0.2 dB is not very important when the listening environment has a much larger impact.

29th October 2007, 04:04 PM	#6
Sjef diyAudio Member Join Date: Jan 2003 Location: Amsterdam	I have tried this software some time ago in combination with the foobar convolver plugin. It's not easy to setup and make good measurements but if you manage to do this right it's certainly worth the trouble. It works in some kind of the same way as my DEQX unit at about 1/1000 of the cost, that should sound interesting to the diy out here. But then again, nothing comes for free, you will have to do all the hard work yourself and start learning and expermenting with it for quite a long time before you get it right. I have used it for a friends system. we made a totally foobar based system where the crossover and room correction was done in the foobar player, worked out very well, only drawback offcoarse is that it only works when using foobar, no other sources allowed anymore, but we didn't care about that.

10th November 2007, 03:22 PM	#7
mikemcd diyAudio Member Join Date: Mar 2004 Location: xyz	Yes, the user interface is not user friendly. I built some Excel and Matlab scripts that automate the process somewhat. But, when you get finished, you will know quite a lot about DSP. There is also a convolver for Windows Media Player, so that opens up some new sources.

10th November 2007, 05:29 PM	#8
jzagaja diyAudio Member Join Date: Jun 2004 Location: Szczecin	Congratulations Mike! Nice work on Matlab graphs (I wish I could compute some). I'm building such a speaker with a horn loaded tweeter. I've tried DRC and Acourate but don't know how to use Windows Media Player for two way crossover+DRC (4 channels via Digigram 440VX).

11th November 2007, 03:17 AM	#10
el`Ol diyAudio Member Join Date: May 2005 Location: Bavarian Forest	Is it the sense of a near omnidirectional design to cancel out the room reflections?

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