User Guide

Waves IR-1 software guide page 29
LF damping is the reduction of reverberation time at low frequencies, due to low frequency
transmission in the walls. Most rooms with solid walls have little low frequency damping. In
general, the reason for this is that a wall with more LF transmission has a greater level of
“noise nuisance” caused by bass sounds leaking out of the room and outside bass sounds
leaking into the room. If noise nuisance isn’t a problem, (and it won’t be in a virtual room!)
then LF damping increases the clarity of sounds, giving a clearer bass, especially on speech
and orchestral music.
• Many rooms actually have a longer reverberation time in the bass than at middle
frequencies. If you want some extra warmth, set the LF damping at slightly greater than
1.00x.
Reverb EQ
The IR-1 has a 4-band Paragraphic EQ section with a Low Shelf filter, 2 Bell-Shaped filters
and a High Shelf filter. All 4 bands have a variable Q that controls bell bandwidth as well as
overshoot resonance for the shelves.
The EQ section operates on the Wet signal only.
LOW SHELF FILTER
• Gain: Range: –24dB to +12dB; Default: 0
• Frequency: Range: 16Hz to 1600Hz; Default: 100Hz
• Q: Range: 0.71 to 1.41 Default: 1
LOW BELL-SHAPED FILTER
• Gain: Range: –24dB to +12dB; Default: 0
• Frequency: Range: 16Hz to 1600Hz; Default: 301 Hz
• Q: Range : 0.26 to 6.50; Default: 1.28
HIGH BELL-SHAPED FILTER
• Gain: –24dB to +12dB; Default: 0
• Frequency: Range: 1000Hz to 21000kHz; Default: 1200 Hz
• Q: Range : 0.26 to 6.50; Default: 1.64