User manual

Page 30 User manual P1 Audio Processor
THE peakride COMPRESSOR
Compressors progressively reduce the gain of an audio signal as its
input level rises above the compressor threshold as shown in the
diagram below;
The compressor threshold is the level point in dB above which the
audio gain will be reduced. On the P1 this can be varied from 0dB to
-40dB.
The red LED bar graph shows how much the audio gain has been
reduced and is calibrated in dBs.
The ratio control varies the degree of gain reduction which is applied,
from 1:1 (no effect) to  : 1 which will make the compressor act like a
limiter.
The attack time is how quickly the compressor will react to audio
which rises above the threshold point. In the P1 the attack time can
be varied from 60ms (slow) to 1ms (fast). The setting of the attack
time usually has a large impact on the compression effect.
The release time is how quickly the compression effect is removed
when the audio falls back below the threshold. The P1’s release
time is programmed to follow the dynamics of the falling audio level.
This is an important aspect of the P1’s compressor design and
allows the compressor to offer very low distortion levels when
working with a wide variety of audio types.
Because compression is a gain reduction tool, it will tend to lower the
maximum audio level through the audio chain. Make-up gain is used