10.6

285Logic Pro Effects
Use impulse responses in Logic Pro
Space Designer can use either recorded impulse response files or synthesized impulse
responses. The Sampled IR and Synthesized IR buttons above the main display switch
the impulse response mode.
Important:
To convolve audio in real time, Space Designer must first calculate any
parameter adjustments to the impulse response. This requires a moment or two
following parameter edits and is indicated by waveform changes in the main display.
Impulse response parameters
• Sampled IR button: Switch to Sampled IR mode. In this mode, an impulse response
sample is used to generate reverberation.
When you first click the Sampled IR button, a Load impulse response window opens.
Choose an impulse response file from any folder.
• Synthesized IR button: Turn on Synthesized IR mode. A new synthesized impulse
response is generated, derived from the values of the Length, Envelope, Filter, EQ,
and Spread parameters.
• IR Sample pop-up menu: Shows the name of the loaded impulse response. Click to
choose an IR sample command. The format of the impulse response is shown to the
right of the pop-up menu. Also see Logic Pro
Space Designer global parameters.
• Load IR: Loads an impulse response sample without changing the envelopes.
• Load IR & Init: Loads an impulse response sample and initializes all envelopes.
• Show in Finder: Opens a Finder window that shows the location of the current
impulse response.
• Open IR Utility: Opens the Impulse Response Utility window. This application enables
you to create your own impulse response files.