Lexicon 480L | PDF - Freeverb3
Lexicon 480L | PDF - Freeverb3
Lexicon 480L | PDF - Freeverb3
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Basic Operation<br />
Using Digital Signals<br />
Several programs in the <strong>480L</strong> allow you to increase the<br />
level of the digital signal beyond dBFS. For example, if<br />
the Parametric EQ program is loaded, and a low shelf<br />
filter is boosted +6dB at 250Hz, the potential headroom<br />
to dBFS is reduced accordingly. (See the figure below.)<br />
If the audio material fed through this program contains<br />
a large amount of energy in the region of the shelf<br />
boost, an overload in the digital domain may occur.<br />
When this happens, the last segments of the LARC<br />
display will illuminate.<br />
Many programs, such as Parametric EQ, have a master<br />
level control which can offset the overall gain to<br />
prevent this situation. If you consistently encounter<br />
such situations, contact <strong>Lexicon</strong> Customer Service.<br />
dBFS<br />
+ =<br />
20 Hz 200 Hz 2 kHz 20 kHz <strong>480L</strong> Parametric EQ 20 Hz 200 Hz 2 kHz 20 kHz<br />
Low Shelf +6dB at 250 Hz<br />
2-13
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