Lexicon 480L | PDF - Freeverb3
Lexicon 480L | PDF - Freeverb3
Lexicon 480L | PDF - Freeverb3
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Bank 17: the Test & Reference Programs<br />
Page One<br />
LVL<br />
Level<br />
DEC<br />
Decade<br />
FRQ<br />
Frequency<br />
WAV<br />
Wave Form<br />
ACC<br />
Accuracy<br />
ILEV<br />
Input Level<br />
The Oscillator Program<br />
Unlike standard <strong>480L</strong> programs, the Oscillator<br />
reconfigures the mainframe so that signal no longer<br />
passes from inputs to outputs. This allows the mainframe<br />
outputs to be fed to the mainframe inputs to<br />
calibrate analog signal levels. Likewise, an external<br />
signal generator (from, for instance, a console) can be<br />
used to calibrate the mainframe for a studio's design<br />
center.<br />
About the Parameters<br />
LVL (Output Level)<br />
LVL controls the oscillator output for both digital and<br />
analog signal paths.<br />
DEC (Decade)<br />
DEC multiplies/divides the selected frequency in x10,<br />
x100, or x1000 increments. The preset value is 2.<br />
Decade Example: Frequency = 20 Hz<br />
0 = ÷ .2<br />
1 = ÷ 2<br />
2 = Norm 20<br />
3 = x 10 200<br />
4 = x 100 2000<br />
5 = x 1000 20000<br />
FRQ (Frequency)<br />
Sets the frequency of the oscillator, and displays the<br />
actual oscillator frequency in Hz. and .01Hz. increments.<br />
WAV (Wave Form)<br />
WAV changes the oscillaotr waveform as follows:<br />
0 = Sine Wave<br />
1 = Triangle Wave<br />
2 = Square Wave<br />
ACC (Accuracy)<br />
ACC adjusts the accuracy of the oscillator as follows:<br />
0 = .5%<br />
1 = .01%<br />
ILEV<br />
ILEV displays input level in 0.01dB increments over a<br />
90dB range from dBfs. (dBfs = 90.00dB)<br />
Meter detection is always averaged. A plus sign (+) will<br />
appear next to the L or R channel display to indicate<br />
long averaged mode. Moving the slider changes averaging<br />
time from approximately 1 second to weeks!<br />
As you can see, when the oscillator is set for high<br />
resolution, .01 Hz increments can be selected with a<br />
combination of frequency and decade. For example: If<br />
the desired frequency is 1.02 Hz, move DEC to 3, set<br />
FRQ to 1020 Hz, then move DEC to 0.<br />
14-2