Making Pegboard Acoustic Panels - Page 5

Pano · 25th July 2011, 01:10 PM

That's a good idea. Do you know its absorption frequency response?

a.wayne · 27th July 2011, 03:32 AM

No never measured it , but it works very, very well and no Fg dust ..

Amazon.com: Hospital Bed Pad Size: 4": Health & Personal Care

also available at wall mart !!!

ra7 · 27th July 2011, 04:12 AM

I had that too, but don't anymore. I don't know how effective it is though.

ra7 · 09:34 PM

Here's the T30 response in my room. The T60 reverberation time (shown in the Energy Decay window) is 0.430 s. This is with both speakers playing and the mic in the listening position pointed upwards. Input is swept sine.

I don't really know what to make of this. What do you guys think?

Pano · 30th July 2011, 09:22 PM

I'd say pretty balanced thru the midrange, but dry in the bass.
My guess is that if you could bring the mids and highs down to 0.4S without killing the bass, the overall sound would be richer and fuller.

ra7 · 30th July 2011, 09:41 PM

Thanks! So the goal is to have it as even as possible through the entire frequency range.

Pano · 30th July 2011, 10:02 PM

The goal - I think - is to keep it within the lines shown on that first graph I posted on page 1. Slightly longer times are OK in the bass, shorter times OK at the top end.

From there it becomes tuning by ear and experience, AFAIK.

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25th July 2011, 01:10 PM	#41
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	That's a good idea. Do you know its absorption frequency response?

27th July 2011, 03:32 AM	#42
a.wayne diyAudio Member Join Date: May 2008 Location: Front Row Center	No never measured it , but it works very, very well and no Fg dust .. Amazon.com: Hospital Bed Pad Size: 4": Health & Personal Care also available at wall mart !!!

27th July 2011, 04:12 AM	#43
ra7 diyAudio Member Join Date: Feb 2009 Blog Entries: 1	I had that too, but don't anymore. I don't know how effective it is though.

30th July 2011, 09:22 PM	#45
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	I'd say pretty balanced thru the midrange, but dry in the bass. My guess is that if you could bring the mids and highs down to 0.4S without killing the bass, the overall sound would be richer and fuller.

30th July 2011, 09:41 PM	#46
ra7 diyAudio Member Join Date: Feb 2009 Blog Entries: 1	Thanks! So the goal is to have it as even as possible through the entire frequency range.

30th July 2011, 10:02 PM	#47
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	The goal - I think - is to keep it within the lines shown on that first graph I posted on page 1. Slightly longer times are OK in the bass, shorter times OK at the top end. From there it becomes tuning by ear and experience, AFAIK.

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