TC-Helicon Play Acoustic - Reference Manual - Manual (Page 57)

Guitar FX button/section
Play Acoustic – Reference manual (2014-07-16) 55
Ratio parameter
Use the Ratio parameter to define the amount of
compression applied to the signal. The signal at
the input of the compressor has to exceed the
threshold by the number of decibels (dB) set with
this parameter to raise the signal at the output by
1 dB. Here is an example:
► Set the Threshold parameter to -10 dB.
► Set Ratio to 4.0.
► Now if the level of the signal at the
Compressor’s input suddenly jumps to -6 dB,
it is 4 dB above the Threshold (-10 dB), and
the compressor kicks in. The Compressor will
compress those 4 extra decibels to 1 dB –
this is the compression ratio. Accordingly, the
level of the signal at the compressor’s output
will only jump from -10 dB to -9 dB.
Release parameter
Use the Release parameter to define how fast
the original signal level should be restored once
the signal at the guitar input falls under the
Threshold value.
Ambience parameter
The Ambience section of the BodyRez effect
block utilizes timing variances to emulate body
resonance from your acoustic guitar. Use the
Amount parameter to set the amount of Ambi-
ence applied to the signal.