Convolution IR from FFT

staticseven · 3 Weeks Ago

Hi guys
I want to be able to generate an IR from an FFT profile. What would you recommend to firstly capture the FFT and secondly to create an IR from it?
Until now space designer is as far into convolution as I've ever got so this is a big jump up lol.

And yes it does need to be from an FFT profile rather than just recording the response as audio.

Cheers
Liam.

BasketCase Audio · 3 Weeks Ago

I am not sure it is possible. An FFT simply records amplitude against frequency at a given point in time. An IR is a recording of amplitude against frequency and its change over time.

The first would work for modeling an eq curve via convolution, but not reverb.

Kiwi · 3 Weeks Ago

I guess you want additive synthesis? Creating a sound out of sine waves? Camel Audio Alchemy is probably the way to go ...

This is basically trying to unscramble an egg ... not sure if it's ever been done successfully ...

3 Weeks Ago	#1
staticseven Gear interested Join Date: Apr 2011 Posts: 2 Thread Starter	Convolution IR from FFT Hi guys I want to be able to generate an IR from an FFT profile. What would you recommend to firstly capture the FFT and secondly to create an IR from it? Until now space designer is as far into convolution as I've ever got so this is a big jump up lol. And yes it does need to be from an FFT profile rather than just recording the response as audio. Cheers Liam.

3 Weeks Ago	#2
BasketCase Audio Gear interested Join Date: Jan 2012 Location: Sydney, Australia Posts: 10	I am not sure it is possible. An FFT simply records amplitude against frequency at a given point in time. An IR is a recording of amplitude against frequency and its change over time. The first would work for modeling an eq curve via convolution, but not reverb. __________________

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3 Weeks Ago	#3
Kiwi Lives for gear Join Date: Feb 2009 Posts: 2,674	I guess you want additive synthesis? Creating a sound out of sine waves? Camel Audio Alchemy is probably the way to go ... This is basically trying to unscramble an egg ... not sure if it's ever been done successfully ...