Creating an Impulse Response Reverb

Discussion in 'Tracking / Mixing / Editing' started by ThirdBird, Mar 5, 2012.

  1. ThirdBird

    ThirdBird Active Member

    What is the best way to do it?

    I want to make a wave file of my own locations to be used in the SIR plugin.
  2. bouldersound

    bouldersound Real guitars are for old people. Well-Known Member

    Do you mean how do you write the code for a plugin, or how do you create an impulse, or how do you load an impulse into a plugin, or...?
  3. ThirdBird

    ThirdBird Active Member

    Create a wave file of an actual response to be used in an SIR reverb plugin. Sorry....
  4. RemyRAD

    RemyRAD Well-Known Member

    Let's see, next Sunday, just sneak in a couple of M-80's and disguise them as candles. Make sure you have your solid-state recorder running in your shirt in your jacket pocket facing upward toward the ceiling. Or you can drop a microphone stand base on the wooden floor. Makes for great impulses.

    Remember to call 911 in the event of heart failure
    Mx. Remy Ann David
  5. ThirdBird

    ThirdBird Active Member

    Alrighty, correct me if I'm wrong...

    1. Find cool recording location.
    2. Make a very loud and short sound.
    3. Record and turn into a wave file.
    4. Load into Reverb plugin.
    5. Enjoy!
  6. RemyRAD

    RemyRAD Well-Known Member

    Basically that's it. Of course the transient snapper can present differing textures of the initial impulse. So different items should be tried and utilized in this space of which you are trying to capture. A metal froggy clicker will create a different impulse than a thick leather belt being snapped together. And they hammer striking a brick on the floor will yield yet a different textured pulse. That's why I generally don't deal with convoluted reverb programs and rely mostly upon algorithmic digital offerings.

    Somewhere I got my pulses from the national Presbyterian Church directly next door to NBC DC. I have as yet to try the Episcopal National Cathedral. It's pretty awesome. You can't understand somebody speaking directly toward you from 10 feet away. Jesus Christ! But then I guess he knows what the RT 60 is? As long as possible at one atmospheric pressure and only a little above sea level at 60% humidity at 68°F.

    Mx. Remy Ann David
  7. ThirdBird

    ThirdBird Active Member

    Do I want to edit the waveform at all before I load it into SIR?

    Also, how hot do I want to track the reverb?

    In theory, can I mix the track to? Like apply standard fx like eq and compression to it? Can I throw crazy stuff on it like gating and flange?

    Thanks, by the way!
  8. JohnTodd

    JohnTodd Well-Known Member

    I've done it. I'm not a pro, but I got good results.

    1. Set up mic in M/S stereo configuration.
    2. Start recorder.
    3. Clap hands real loud or clack two pieces of wood together. Make sure you are far from the mic.
    4. Process the recorded audio into an impulse file.

    I did it and I think it worked nicely. Got a good impulse of the woods behind my house. Got echoes from nearby trees and a "wash" in the background from the overall forest. Sounded great on a certain sing I did where people were singing around a campfire.

    As for flange and other craziness, try it! Anything you do to alter the impulse file will alter the reverb it makes. You may like the result; it's worth experimenting. I heard one where the impulse had a hoot owl in it. All the reverb coming out of that sounded like a "hoot owl reverb". I couldn't describe it to save my soul, but it was cool.

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