Reference Guide

1362 Included plug-ins
Audio effects
Perfect Space (32-bit Only) (Producer only)
Figure 395. Perfect Space convolution reverb
The Perfect Space convolution reverb is a stereo convolution processor. The process of convolution
allows you to apply the acoustic characteristics of any space (or sound) to any input signal. Perfect
Space can work with a latency as low as 64 samples (1.5 ms at 44.1kHz), making it possible to use
it during tracking.
The process of convolution allows you to apply the acoustic characteristics of any space to any input
signal. These acoustic characteristics are captured within audio files called impulse responses.
An impulse response can specifically represent a certain location, from a famous cathedral to a
locker room shower. Impulse responses (IRs) are created by recording the reverberations within
these spaces after playing special tone sweeps or firing a starter pistol. These wideband "impulse"
sounds typically span the entire audible frequency range, so the recorded "response" includes a
complete representation of how the space reacts to all frequencies. Use IRs of this type to change
your project’s performance location without moving an inch.
Convolution is not limited to emulating pre-existing spaces, though. In fact, you can use absolutely
any sound (drums, claps, screams, towel snaps, etc.) to manipulate your source audio. With creative
convolving, you can achieve very interesting filter, reverb and delay effects.
In the context of using Perfect Space, an impulse response is a standard mono, stereo or multi-
channel uncompressed .
WAV or .AIFF file of any bit-depth.
In addition to using the impulse responses included with SONAR and files from your own libraries,
you can find many impulse responses for free on the Internet at Web sites like www.noisevault.com.
For more information, see the Perfect Space online Help.