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Creating impulse responses Reverb & Delay Plugins
Old 20th August 2007
  #1
Creating impulse responses

Hello all

What's the best source to use to create an IR for TL Space or IR-L?

Sine wave sweep?

Isolated 'clap/crack' type sound?

Something else?

Links to files appreciated if they exist online! Done some cursory searching but haven't had much luck yet.

Thanks in advance!
Old 21st August 2007
  #3
Good find, thanks for that!
Old 21st August 2007
  #4
Followup question!

Will a loud clapperboard on a film location deliver enough information, as opposed to a starter pistol which could get a lot of people in trouble?

Ta!
Old 21st August 2007
  #5
Gear Nut
 
peterwagner's Avatar
I don't think a clapperboard is an ideal impulse because it doesn't contain all the frequencies and it doesn't put enough enegery into the reverb. The best way is to use a sine sweep of 30 secs.

Mono:
an omnidirectional mic. The DPA miniatures are the best to use for IR's

Stereo:

A/B. Two omni mics, 40cm

Surround:
Four omni mics, a square, 40cm
Old 21st August 2007
  #6
Here for the gear
 

ive got good results by bursting a balloon, balloons have a lot energy around the 400hz mark but a bit eq sorts this.
Old 21st August 2007
  #7
Gear Nut
 
peterwagner's Avatar
Quote:
Originally Posted by soapdodger View Post
ive got good results by bursting a balloon, balloons have a lot energy around the 400hz mark but a bit eq sorts this.
The problem with claps, bursts and gunshots is that they're too short to put enough energy in the reverb and so the s/n ratio will be far to low. It is also impossible to reproduce them to be exactly the same.
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