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AD11

Table of Contents

Subject

Page

Quickstart Guide- Introduction: Line and Microphone Inputs

Quickstart Guide- Setting Example

Quickstart Guide- Diagram 1, AD11 Modes- Setting & Operation

Quickstart Guide- Diagram 1 Sections, Setting Controls

Quickstart Guide- Diagram 1 Section 2, Setting Status Display

Quickstart Guide- Diagram 1 Section 2, Level Display Meters

Quickstart Guide- Diagram 1 Section 3, GAIN Controls- Line/Mic

Quickstart Guide- USB Connection

Operation- Features and Connection

Operation- USB Operation

Operation- A. Front Panel Displays

Operation- B. Setting Mode- General Information

Operation- B. Setting Mode- Diagram 2 & Sample Frequency

Operation- B. Setting Mode- External Clock & Output Format

Operation- B. Setting Mode- +48V Phantom, Soft Saturation

Operation- B. Setting Mode- Meter Peak Hold

Operation- C. Setting & Operating Mode- GAIN Control section

Operation- D. Operating Mode- General Information

Specifications

Limited Warranty

Содержание AD11

Страница 1: ...LavryBlack Series Model AD11 Stereo Analog to Digital Converter With Microphone Preamplifier ...

Страница 2: ...Lavry Engineering Inc P O Box 4602 Rolling Bay WA 98061 http lavryengineering com email techsupport lavryengineering com May 25 2011 Rev 1 1 ...

Страница 3: ...art Guide Diagram 1 Section 3 GAIN Controls Line Mic 6 Quickstart Guide USB Connection 6 Operation Features and Connection 7 Operation USB Operation 8 Operation A Front Panel Displays 9 Operation B Setting Mode General Information 9 Operation B Setting Mode Diagram 2 Sample Frequency 10 Operation B Setting Mode External Clock Output Format 11 Operation B Setting Mode 48V Phantom Soft Saturation 12...

Страница 4: ...AD11 Table of Contents ...

Страница 5: ...ve as output level meters and the numbers above the display indicate the peak level in dB s below 0dB full scale digital 0dBFS In Setting mode the legend below the display applies and the bottom row of LED s labeled right indicate the status of most settings However for individual channel settings the top row indicates the left channel setting or for external clock operation lock to an external sy...

Страница 6: ... switch down three times until the cursor appears in the left upper row of LED s above the phantom legend Please note how the cursor goes to the right lower row of LED s before moving to the left row This is because there are individual settings for left and right channel 9 Click the right switch down towards set the cursor will change from flashing slowly to flashing rapidly to indicate the phant...

Страница 7: ... actuated and for approximately 10 seconds afterwards The GAIN display then reverts to displaying LE A quick click of either channel s up down switch will display the stored setting for that channel without changing it Please see Diagram 1 Section 3 Gain Controls page 6 for details on the behavior of the GAIN control including when switching between Line and Mic range The GAIN control is always ac...

Страница 8: ... In the case of selecting digital output format aes or spdif the setting at the cursor position is enabled and the other one is disabled the first time the switch is clicked in the set direction Subsequent set clicks have no further effect Clicking the switch up exit immediately exits the Setting mode After exiting the Setting mode clicking the switch in either direction has no effect on settings ...

Страница 9: ...igital audio signal that contains muted audio digital black is recommended as an external sync signal to minimize jitter effects AES sync is preferable to SPDIF sync aes and spdif These settings determine the configuration of the digital output format The digital audio signal from both the XLR and RCA digital outputs will contain the same digital code format as determined by these settings The out...

Страница 10: ...gain is for line level inputs and the range from 20 to 65dB is for microphones or other balanced low level low impedance sources The GAIN display will STOP changing and flash before the GAIN is changed from 12db to 20dB or from 20dB to12dB to indicate the change in operating modes It is necessary to release the GAIN toggle switch wait for the display to stop flashing and then press it again to tra...

Страница 11: ...rce using any of the following Professional line level 4dBu balanced or unbalanced sources to the XLR inputs Consumer line level 10dBV balanced TRS or unbalanced TS to inputs Low impedance balanced sources typically microphones to the XLR inputs for gains 12dBs Phantom power is selectable individually for each channel via the front panel Stereo digital audio outputs are in the form of XLR RCA and ...

Страница 12: ...g select the Audio tab In the SOUND RECORDING section select the Lavry ADC as the Default Device from the drop down list Due to the nature of the USB interface for highest quality it is advised that you set the AD11 to the same sample frequency as the recording software Windows Vista Seven Due to the nature of the USB interface for highest quality it is advised that you set the AD11 and the settin...

Страница 13: ...eters 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 st...

Страница 14: ...power is applied the left most LED 44 1 will begin flashing If other functions are enabled the LED s above their legend will be illuminated At all other times when Setting mode is exited the position of the cursor is retained so upon re entering Setting mode it will appear at the same position The LED at the cursor position indicates the status of the function differently than other positions At p...

Страница 15: ...CK indicator does not illuminate check the SF settings of the AD11 and external clock source the external clock settings either the wc or dig a LED must also be illuminated and cabling for possible problems If the AD11 is not locked to the incoming external clock it does not operate properly even when one of the external clock settings is selected wc or dig a is On with no Lock indication Operatin...

Страница 16: ...ically through each setting until it reaches the phantom setting for the right channel where it pauses for 8 seconds to allow changes to the right channel s setting It then moves to the left channel and pauses for 8 seconds to allow changes to the left channel setting Regardless of whether the settings are changed or not the sequence then completes itself and the AD11 reverts to Operating mode Thi...

Страница 17: ...s in excellent signal to noise performance at all line input Gain settings The adjustable Gain range for Line level inputs is 0 to 12 dB in one dB steps The adjustable Gain range for Microphone inputs is 20 to 65 dB in one dB steps Both GAIN up down switches function in a similar way Because the same GAIN controls are used for both Line level and Microphone inputs there are two different GAIN rang...

Страница 18: ...s optimized for balance signals so connection of the AD11 input to a source other than a balanced low impedance source while operating the Gain in the Microphone range will result in degraded performance and is therefore not recommended For example do not use unbalanced high impedance microphones As part of operation of the safety interlocks in the phantom power system it is possible that the phan...

Страница 19: ...recording software and the difference is musically significant the user can manually offset the position of the recorded track Musically significant can be a matter of opinion but generally speaking a difference of 1 2 milliseconds between different instruments or vocals is not significant because this is equal to an acoustic delay caused by a difference in the distance between the mic and source ...

Страница 20: ...PDIF inputs using XLR to RCA adapter or adapter cable Output format set by front panel setting to either AES or SPDIF IEC 60958 type II Consumer format Output is always 24 bit Wordlength RCA Connect to SPDIF RCA inputs using standard 75 ohm RCA to RCA cables Connect to XLR inputs using RCA to XLR adapter or adapter cable Output format set by front panel setting to either AES or SPDIF IEC 60958 typ...

Страница 21: ...bureau or similar businesses This limited warranty gives you specific legal rights You may have others which vary from state jurisdiction to state jurisdiction LIMITS AND EXCLUSIONS LAVRY ENGINEERING DOES NOT BY VIRTUE OF THIS AGREEMENT OR BY ANY COURSE OF PERFORMANCE COURSE OF DEALING OR USAGE OF TRADE MAKE ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCH...

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