Storm sounds - Page 2 at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > All Things Audio

All Things Audio
Everything Audio, from acquisition to postproduction.


Reply
 
Thread Tools Search this Thread
Old May 19th, 2015, 11:28 PM   #16
Inner Circle
 
Join Date: Feb 2007
Location: Tucson AZ
Posts: 2,206
Re: Storm sounds

I do indeed remember the sheet metal. When I took 7th grade shop class we thought it was great fun to play with some old sheet metal to make thunder. I was just afraid nobody would believe me!
Jim Andrada is offline   Reply With Quote
Old May 20th, 2015, 04:35 AM   #17
Trustee
 
Join Date: Jul 2007
Location: New Zealand
Posts: 1,104
Re: Storm sounds

Thanks everyone...I have some things to try! I'm onto another episode in the series so will have to go back to it...

I have Rose's book 'Great Sound for Digital Video' but haven't looked at it in a long time. I got it and went through it all when I was 'learning'. Maybe I need to look at it again... :-)
Renton Maclachlan is offline   Reply With Quote
Old May 20th, 2015, 04:42 AM   #18
Trustee
 
Join Date: Jul 2007
Location: New Zealand
Posts: 1,104
Re: Storm sounds

Hi Greg

Re your clipping sound example...hmmmm...I'm fully aware that after a life time of running power tools (many years without earmuffs!!!) I've lost some of my hearing...however...I can't hear any distortion, just increased volume. Maybe the distortion is in a frequency that I can no longer hear...
Renton Maclachlan is offline   Reply With Quote
Old May 20th, 2015, 07:22 AM   #19
Trustee
 
Join Date: Jan 2011
Location: Pennsylvania
Posts: 1,359
Re: Storm sounds

Don't you hear the additional upper harmonics created by the clipping?

Here's a spectral view. The single red spike is the 440Hz fundamental from the first tone sample (the one at -6dBFS). The green spikes are the harmonics added in by moderate clipping in the second tone sample. The blue spikes are the additional (and higher level) harmonics added by the heavier clipping in the third sample.

The distortion products start with the second harmonic, located at 880Hz. Surely you can hear that frequency, or you'd be unable to understand speech. The first really loud harmonic is the third harmonic at 1,320Hz. Again, you need that frequency to be able to understand speech.

If you still can't hear these when listening closely, maybe I can devise another example file.
Attached Thumbnails
Storm sounds-clippingspectrum-01.gif  
Greg Miller is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > All Things Audio

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 12:51 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network