WAVE EDITOR / RECORDER
Convolution Reverb & Tool
The Convolution Reverb tool allows you to imprint the sound of one audio file onto another in a process called convolution. While it sounds complex, the process is simple. Convolution triggers playback of an 'impulse' (the audio you want to imprint on your destination file), for every sample in the destination file. If the destination file is a single click, 1 sample at 100%, then you will hear the impulse response and nothing else. If its two clicks 10 ms apart at 20% level, you would hear two copies of the impulse file layered together with a 10 ms delay at 20% of their original level. In this way convolution is similar to playing a sample on a keyboard, triggering it for every sample of the input (affected) waveform with sample playback velocity (level) tracking the value of the samples in the destination file. A reverb effect is created when a reverb 'impulse' file is convolved with the original wave file. Reverb impulse files are created by recording short, sharp sounds in real spaces or through a reverb/effects unit. The recorded 'reverberance' is an acoustic fingerprint of the real space.
A real-time alternative is Fruity Convolver.
NOTE: While called the Convolution Reverb, any audio file can serve as a source for the impulse making this a general convolution tool. As always, experimentation will reward you with unique and interesting sounds.
To Open the Convolution Dialog
To open the dialog you can either Left-click on the Convolution Reverb button , press Ctrl+R inside the Editor, or use the Tools > Spectral > Convolution Reverb option.
Once an impulse is loaded you can perform any of Edison's editing functions in the spectral preview window. Right-click on the spectral preview to open the editing options
This section displays a spectral view of the impulse function. The vertical axis represents frequency 0 Hz (bottom) to 20 kHz (top) and the horizontal axis represents time. You can zoom and scroll through this display by Left-clicking in the scroll bar above the display (as shown by the double arrow cursor in the screenshot above).
Edison comes with many impulses, however the addictive nature of these files will mean that you will soon be looking for more. Below are several links to get you started. To load a new impulse from outside FL Studio, Left-click on the 'Impulse:' tab above the spectral display to open the standard 'Load File' dialog and browse to the location of the new impulses.