32
Adjusting the Limiter
A limiter is a compressor with a high slope (i.e., attack) that is used to prevent a signal
from exceeding a set decibel level. Limiters are used as safeguards against signal clipping.
Low Pass (High Cut)
This feature helps eliminate high frequency noise (signals of 8000 Hz and above) such
as background hiss and sibilance (excessive "S" in vocals, etc.) and is used primarily
with microphone level input. It is particularly effective when handheld microphones are
used.
Frequency
Set the cutoff frequency. You can adjust the frequencies by
moving the knob (click and move up or down) or by dou
-
ble-clicking the knob and typing the frequency. When typ
-
ing the frequency, only numeric values from 20 Hz to
20,000 Hz can be entered.
The low pass filter attenuates content above this frequency
and lets frequencies below this cutoff frequency pass
through the filter.
Type
Available filter types are:
• Linkwitz-Riley (12, 24, 36, and 48 dB per octave)
• Butterworth (6, 12, 18, 24, 30, 36, 42, and 48 dB per
octave)
• Bessel (12, 18, and 24 dB per octave)
The dB per octave refers to how steep the roll off of the fil
-
ter is above the selected cutoff frequency.
Table 11. High Pass/Low Pass Parameters (Continued)
