Lavry LavryBlue LE-4496 Operation Manual page 10

LavryBlue 4496 Operation
1.) USING THE "SET/SELECT" SWITCH ON THE M●AD-824
The SET/SELECT switch is intuitive and actually far easier to use than to describe! Use it to enter (or
exit) the Program Mode by holding the switch either up or down for 3 seconds.
There are individual functions (Saturation Modes, Reference, & Peak Hold) and multiple parameter
functions (Wordlength, & Dither/ABC).
SELECT- click switch "Down" to moves the indicator from one function to the next. In all cases, toggling
the switch "Down" enables the indicated parameter as the next function is selected.
SET-click switch "Up" to toggle individual functions "On" and "Off". For individual functions, a
constantly illuminated lamp means "On" and blinking lamp means "Off." For multiple parameters, SET
moves the indicator sequentially through each parameter. In multiple parameters possible choices are
indicated by a blinking lamp, and the current selection is indicated by a constantly illuminated lamp.
To move through all functions, continue toggling SELECT. The lamps for the parameters or function will
illuminate to indicate their status as you toggle through each function, then move on to the next function.
To exit the program mode, hold the switch either UP or DOWN for 3 seconds. If you don't use the switch
for 10 seconds, the unit will automatically exit the program mode, except in Reference Mode, which will
remain active until you toggle down (SELECT).
All settings are retained in a non-volatile memory; thus, turning the power on will restore the last set of
parameters programmed by the user
2.) SELECTING THE DESIRED WORD LENGTH (16, 20, 24 bit).
Enter program mode and the Word Length lamps illuminate (the first group of parameters in the list). To
set the Word Length, Toggle up (SET) until the lamp next to the desired word length of 16, 20, or 24 bits
stops blinking. Remember: while in "SELECT MODE," if the lamp is blinking the function is not selected
or "OFF". If it stays lit, it is selected or "ON." The indicated Word Length can now be enabled by toggling
down (SELECT). By "Selecting," the status of the next function is also displayed-
3.) Analog Soft Saturation
This is an analog peak limiter before the input of the A-to- D converter to protect against overloads. An
internal 3-position jumper, J6, enables the threshold to be lowered or raised for the analog soft saturation
feature. Please refer to the "Settings" section (below) for details. Default setting is a –3dBFS threshold.
4.) Digital Soft Saturation
Select this option to emulate an overdrive condition of magnetic tape. Signal levels below -12 dBFS digital
are raised 6db's. Above this level, a transfer function that emulates analog tape saturation is applied to the
waveform. As a result signal peaks that would have reached "0dBFS"are reduced by 6dB's. Please keep in
mind that enabling this mode automatically adds 6dB more level as seen on the meters of the M•AD-824
(for signals below the –12dBFS "threshold"), so the point at which the "saturation" starts is "-6dB" on the
meters. The MAX lights still indicate when the maximum input level of the converter is exceeded and the
resulting digital waveform will be "clipped."
Please Note- If your music source has a fairly high average level, and the input is already high enough that
the signal peaks are near "0dB" on the meters, you may find that you want to lower your input level when
you switch this function "ON." This may mean that the increase in level is less than the maximum 6dB's
possible, but at that point (with that much "saturation") it will probably sound noticeably distorted. This
function is not supposed to replace a limiter, if that is what is called for. The design is optimized to prevent
an occasion loud peak from causing clipping if the level was raised in a program source that has a relatively
low average level with occasional peaks that are much louder- a "wide dynamic range."
The next two functions in Program Mode are METER functions; they will be addressed later.
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