User Manual

WAVELAB
19 – 516 The Audio Montage
Using LFE
The LFE (Low Frequency Effects) channel should typically be used with
great care – in many cases you don’t need to activate this at all for a track.
If the LFE channel is activated in the Audio dispatching dialog, the follow-
ing settings are available:
• Low pass filtering.
When this checkbox is activated in the Audio dispatching dialog, a 12dB/octave low pass
filter will be applied to the LFE signal, so that only the low frequency content is let through.
You can adjust the cutoff frequency for the filter if needed.
• LFE Gain.
This setting in the Surround Pan window determines the amount of signal sent to the LFE
channel. You can also automate this using the LFE envelope (see below).
Using Surround Pan envelopes
You can automate surround panning for individual clips using envelopes.
This is slightly different from using regular volume and pan envelopes:
• Internally, there is a single surround pan envelope where each envelope
point contains a complete surround state (left-right position, front-rear
position and LFE amount).
• When you look at the envelope for a clip, you can choose to view either
the Left-Right, Front-Rear or the LFE curve.
You select which envelope to view on the Show envelope submenu on the clip speed
menu, as usual.
• If you add an envelope point to the Left-Right surround pan envelope for
example, you will find that a point is automatically added to the Front-Rear
and LFE envelopes, at the same position in the clip.
This is because there is actually only a single surround pan envelope – when you add an
envelope point you really add it to this “full” surround pan envelope, and it is shown in all
three views.