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AD11
symbol, and select "Use this device for sound input." In the right pane, under "Input," select the
desired sample frequency from the dropdown list under FORMAT.
- The Lavry ADC is now available for use in an "Aggregate device." Click on the Aggregate device if it
already exists, and in the right pane confirm that the current "Lavry ADC" has a check-box next to it. If
the AD11 was unplugged, or the AC power was turned "off;" the USB connection will be re-set. This
can result in two "Lavry ADC's" appearing in the list in the right pane- the original one (grey- now
disabled) and the "new" one. You must un-check the old one and check the box next to the new one
for the AD11 to function as the input in the aggregate device! The "old" Lavry ADC will disappear
when the box is un-checked.
- You can add the Built-In Output to the aggregate device for playback. If you are using an external
DA converter such as the LavryBlack DA11, be certain to set the Output settings of the Built-In
(digital) Output to the proper sample frequency and "24 bit" for highest quality.
For more information on USB operation, including application–specific recommendations; please
check under the SUPPORT tab of the Lavry Engineering website:
OPERATION:
When AC power is applied, the AD11 initializes itself. First, a single LED "scans" each row of the front
panel meters, then both rows. The unit then enters a special version of Setting Mode to display the
settings and allow changes to the phantom settings for the left and right channel's +48V Phantom
power. The unit then returns to Operating Mode. For more details, please see "phantom (+48V
Phantom Power for Condenser Microphones)" in the Operation section of the manual on page 12.
A. FRONT PANEL DISPLAYS
The AD11 has two modes- Operating Mode and Setting Mode.
In the center of the front panel, the LEVEL display has two modes:
1.) In OPERATING mode, two rows of LED's serve as peak digital level meters for the left and right
channels. The legend above the display (-42, -36, -30,..., 0) indicate the level in decibels relative to
full scale digital or "0dBFS;" which corresponds to "digital clipping" level or "all bits = 1." The top LED
"0" thus acts as a "clipping" indicator. The meters also have a Peak Hold function, which can be reset
and enabled or disabled via the front panel SELECT switches.
2.) In SETTING mode the status of all of the programmable settings are displayed. The legend for the
indicators in Setting mode is below the display (44.1, 48, ..., sat, hold).
- Most of the settings use only the lower row of LED's (the meter "right" channel); but some also use
the upper row of LED's (meter "left" channel). These are: wc, dig-a, phantom, & sat.
wc and dig-a are external clock modes. The LED immediately above each of these labels (in
the lower "right" row) is the setting status display. The LED's in the top row ("left") are the
LOCK indicators for each type of sync (wc or dig-a). Only one LOCK indicator can be
illuminated at any time, and will only illuminate when the AD11 is successfully locked to the
external sync. Please see Section B "wc & dig-a" on page 11 for more details.
phantom and sat functions are selectable on each channels; for these settings the upper
LED ("left") indicates the status of the left channel setting and the lower LED ("right")
indicates the right channel setting.
On the right side of the front panel, the GAIN display has two modes: left channel and right channel. -
- This display does not change between Setting and Operating mode.
- The display always shows the Gain setting of the channel that was last adjusted.
- The display shows the setting for approximately ten seconds after the adjustment, and then reverts
to "LE" to indicate the gain setting has been stored in non-volatile memory.
- If the display shows "LE" and either channel's up/down switch is clicked once, the gain setting for
that channel is displayed without change from the stored value.
- If the GAIN display shows one channel's numerical Gain setting and the other channel's up/down
switch is clicked once, the gain setting for the new channel is displayed without change from the
stored value.
Operation
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