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post #4711 of 4726 Old 10-20-2016, 08:26 AM
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Quote:
Originally Posted by 3ll3d00d View Post
see https://drive.google.com/drive/folde...mc?usp=sharing

process to create is

- install REW
- open generator
- choose CEA-2010
- set level to -3.1
- enter frequency
- click WAV button
- save file somewhere
Thanks...

Quote:
Originally Posted by derrickdj1 View Post
Will this work for people using Omnimic? It should be easy to in stall some file to play the testones. Maybe some sample graphs or data can be posted to give people a better ideal of what is going on.
...and yes these will work.

Last edited by coolrda; 10-20-2016 at 09:05 AM.
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post #4712 of 4726 Old 10-20-2016, 08:27 AM
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Quote:
Originally Posted by derrickdj1 View Post
Will this work for people using Omnimic? It should be easy to in stall some file to play the testones. Maybe some sample graphs or data can be posted to give people a better ideal of what is going on.
These are just wav files that last for 1 min. What sort of graphs do you mean?
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post #4713 of 4726 Old 10-20-2016, 09:39 AM
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I want CEA2010 bursts to safely find the TR peaks at each single frequency. I've had limited success using OM's short sine sweeps. Things should plot nicely. Then use 3's PN for FR.
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post #4714 of 4726 Old 10-20-2016, 09:45 AM
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Quote:
Originally Posted by coolrda View Post
I want CEA2010 bursts to safely find the TR peaks at each single frequency. I've had limited success using OM's short sine sweeps. Things should plot nicely. Then use 3's PN for FR.
it's worth bearing in mind that a 5Hz CEA-2010 tone lasts for 1.3s in total and the 3.1Hz tone lasts for about 2s.
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post #4715 of 4726 Old 10-20-2016, 09:53 AM
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Quote:
Originally Posted by 3ll3d00d View Post
it's worth bearing in mind that a 5Hz CEA-2010 tone lasts for 1.3s in total and the 3.1Hz tone lasts for about 2s.
That's true but it's still far less taxing than 14s straight with square wave to boot.
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post #4716 of 4726 Old 10-20-2016, 11:05 AM
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I played around with this a little. I think I like embedded graphs.

New HT Scorecard
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post #4717 of 4726 Old 10-20-2016, 03:36 PM
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Quote:
Originally Posted by derrickdj1 View Post
Will this work for people using Omnimic? It should be easy to in stall some file to play the testones. Maybe some sample graphs or data can be posted to give people a better ideal of what is going on.
here's a picture of the waveform of a CEA-2010 burst taken from the wav I posted, it just repeats for 1 min like shown and the duration varies with frequency because it's a 6.5 cycle long burst (so they all look the same, just getting more stretched out in time as frequency descends)



here's what that looks like in speclab, I just went down through the 1/3 octave bands for a while



I'm not sure why you'd want to use this in VS though, I'd just use white noise for that, so I assume @coolrda has something in mind on that front.
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post #4718 of 4726 Old 10-20-2016, 03:54 PM
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Quote:
Originally Posted by 3ll3d00d View Post
here's a picture of the waveform of a CEA-2010 burst taken from the wav I posted, it just repeats for 1 min like shown and the duration varies with frequency because it's a 6.5 cycle long burst (so they all look the same, just getting more stretched out in time as frequency descends)



here's what that looks like in speclab, I just went down through the 1/3 octave bands for a while



I'm not sure why you'd want to use this in VS though, I'd just use white noise for that, so I assume @coolrda has something in mind on that front.
I seen the page with all the files. We need to download all of them? I will wait to see how coolrda wants these files used. Maybe he can run a couple examples and post it.
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post #4719 of 4726 Old 10-20-2016, 04:35 PM
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Quote:
Originally Posted by 3ll3d00d View Post
here's a picture of the waveform of a CEA-2010 burst taken from the wav I posted, it just repeats for 1 min like shown and the duration varies with frequency because it's a 6.5 cycle long burst (so they all look the same, just getting more stretched out in time as frequency descends)



here's what that looks like in speclab, I just went down through the 1/3 octave bands for a while



I'm not sure why you'd want to use this in VS though, I'd just use white noise for that, so I assume @coolrda has something in mind on that front.
Thanks 3.

Frequency ID. When limited to the phones like we are here, even with display getting better, its very easy with single freq, narrowband test tracks and to easily find peak performance with far less potential for harm due to a spike free ramp and no unrealistic and damaging hundred percent duty cycle like EOT.

What do you think about using this with single burst per frequency, half or third duty, ascending or descending from 3-20 or 20-3hz? I like to keep VS runs to 15-20 secs for resolution sake, 30 tops. Would this fit?
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post #4720 of 4726 Old 10-20-2016, 10:26 PM
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Each Scorecard will be personally tailored to each individual including your favorite team colors.



@dominguez1
Can you finish this with your colors of choice, keep it as is with everything centered and the numbers zeroed, then get this uploaded. I like your idea of including the FR, TR graphs but my opinion is to keep them separate and then they can be added to the bottom. Im fine with user input if necessary. We still have the other Scorecard to auto calculate.

Should we update the subwoofer page? I can help with some of the DIY stuff if that's helpful. There's a ton of new gear.

Last edited by coolrda; 11-01-2016 at 11:05 PM.
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post #4721 of 4726 Old 10-21-2016, 01:26 AM
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Quote:
Originally Posted by coolrda View Post
What do you think about using this with single burst per frequency, half or third duty, ascending or descending from 3-20 or 20-3hz? I like to keep VS runs to 15-20 secs for resolution sake, 30 tops. Would this fit?
a rapidly descending set of 1/3 octave wide burst tones captured in 1 measurement is not really any different to band limited noise so I would just use white noise for that job (and I think I need to regenerate the white noise files as there's some clipping in there)

here's a pic of such white noise

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post #4722 of 4726 Old 10-21-2016, 06:55 AM - Thread Starter
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Quote:
Originally Posted by dominguez1 View Post
Could you do a slot port that extends vertically? PVL goodness from top to bottom, increasing TR.
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Originally Posted by MKtheater View Post
That is my plan.
That is going to be killer...do share pics...when,does the build start?
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post #4723 of 4726 Old 10-21-2016, 07:33 AM
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Quote:
Originally Posted by 3ll3d00d View Post
a rapidly descending set of 1/3 octave wide burst tones captured in 1 measurement is not really any different to band limited noise so I would just use white noise for that job (and I think I need to regenerate the white noise files as there's some clipping in there)

here's a pic of such white noise

I'll finally have time to try it out this weekend. This is the 1-50hz white noise which avoids aliasing with VS correct?
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post #4724 of 4726 Old 10-21-2016, 08:01 AM
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Quote:
Originally Posted by coolrda View Post
I'll finally have time to try it out this weekend. This is the 1-50hz white noise which avoids aliasing with VS correct?
that example is 1-20Hz

I'll upload some new ones later, the ones up there at the moment have some clipping I think
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post #4725 of 4726 Old 10-21-2016, 02:29 PM
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I updated the files in the link with new white noise files that don't clip
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post #4726 of 4726 Old 10-22-2016, 07:07 AM
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Quote:
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I updated the files in the link with new white noise files that don't clip
Thanks. Got them DL'd and will try them out today.
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