Specifications

Audio Plug-Ins Guide108
Smack! VU Meter
The VU meter displays the amount of input
level, output level, or gain reduction from com-
pression, depending on the current Meter Mode
button setting. It is calibrated to a reference
level of –14 dBFS = 0 VU.
Meter Mode Button and Clip Indicators
The Meter Mode button toggles between dis-
playing three display modes, as follows:
In Displays the input signal level, referenced to
–14 dBFS = 0 VU.
Out Displays the output signal gain, referenced
to –14 dBFS = 0 VU.
GR Displays the amount of gain reduction ap-
plied by the compressor.
Input and Output Meters
The Input and Output meters indicate input and
output signal levels in dBFS (dB relative to full
scale or maximum output).
The Internal Clipping indicator (labelled “INT
CLIP”) turns red when the signal exceeds the
available headroom. Clicking the Internal Clip-
ping indicator clears it. Alt-clicking (Windows)
or Option-clicking (Mac) clears the clip indica-
tors on all channels.
Using the Smack!
Compressor/Limiter
Smack! supports 44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz and 192 kHz sample rates. It
works with mono, stereo, and greater-than-ste-
reo multichannel formats up to 7.1.
In general, when working with stereo and
greater-than-stereo tracks, use the multichannel
version of Smack!.
The TDM version of Smack! introduces 5 sam-
ples of delay. The RTAS version of Smack! intro-
duces 1 sample of delay.
VU Meter
Output
meter
Input meter
Input
Clipping
indicator
Meter Mode
button
Output
Clipping
indicator
Internal
Clipping
indicator
Gain meter
Sample rates of 176.4 and 192 kHz with the
TDM version of Smack! require an HD Accel
card, and only work with mono, stereo, and
greater-than-stereo multichannel formats
up to 7.0. These higher sample rates are not
supported by HD Core
™
and HD Process
™
cards
Multi-mono plug-ins, such as dynamics-
based or reverb plug-ins, may not function
as you expect. Use the multichannel version
of a multi-mono plug-in when available.