LFX is part of surround tools. This software has been developed in order
to extract the fundamental harmonic in the low end of a musical track
and recreate an LFE track for the sub woofer channel in 5.1 productions.
The LFX derives its algorithms by LFE synth and Matrix tools.
It has been developed for the Renaissance SFX library CD n. 11 (Drama
Strings Series) in order to provide a precise LFE track for each RCE recording.
Future applications are under development as well.
Unlike the LFE synth, the LFX sub harmonics are derivated from the original
take thus creating a pleasant and natural light LFE track that match exactly
the music structure of source track.
Due to its harmonic and natural content, the LFX track can be used to
reinforce the low end of the stereo Dolby Surround track as well. In fact
most Prologic decoders provide a subwoofer cross-overed output.
The LFX tracks provide frequency with its best energy between 40 and 120
Hz with a psychoacoustic range below 30 Hz.
LFX tracks are dynamic. Since they are effective part of the original
tracks they match their time and volume variations. Just layer the LFX
track under its original and balance volumes as you like, you may then
assign the LFX to the LFE output of your 5.1 console or pan in stereo
for Dolby Surround crossover subwoofer applications.