Nagra Nagra-VI Operating Instructions And Reference Manual

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Nagra Nagra-VI Operating Instructions And Reference Manual Manual pdf 50 page image

Chapter III (Part 4 – The Set-up) July 201050In the example above: They are set such that potentiometer #1 controls the microphone input sensitivity ofmicrophone 1 potentiometer #2 is set to control the microphone sensitivity of microphone 2 andpotentiometer #3 is set to be the mixer gain control for 1 and 2 together. Potentiometer #4 is not assignedand will have no action if turned. In this situation, displaying the mixer display and moving potentiometer # 3will show the two mixer “faders” move together on the mixer display.If no potentiometer is set to Mic, Mix gain or Line in, and no input is assigned to this potentiometer, then itwill automatically be set to “Not assigned” when leaving the display. When not assigned is selected theindication is in grey.The pot assignment selections can be made at any time even during record, making it possible to switchbetween Mic input sensitivity and mix gain during recording. However it is important to remember thatmaking such a switch may cause sudden level jumps depending on the relative positions of the two pots.The “MON” position is for the assignment of the operation for the monitoring output (headphone level)potentiometer. This pot can be assigned to either “Phones & Speaker”, “Line Out” or “Mixer Output”. Theprevious setting of the potentiometer will be memorized.Pressing the Left and Right arrows keys simultaneously will momentarily set the potentiometer assignmentsto the analogue inputs according to their selection in the inputs menu, allowing an input to be quickly“trimmed” when the pots have been allocated to mixer functions without re-assigning them. This function isnot available when in the menu mode – as the L/R keys are used for other functions in the menu mode.Note: The pots assignment selections are saved in the templates, and can be recalled as desired fordifferent applications.Potentiometer offsetsWhen a single potentiometer is assigned to control two (or more) input sensitivity levels at the same time, itis very likely that there is an offset in levels which, under normal circumstances will disappear when a singlepot is attributed to multiple inputs – all the channels will “jump” to the same level according to the potposition. The Nagra VI allows offsets to be programmed in order to maintain the balance between eachinput channel, so that differences in sensitivity settings for the different inputs will be kept when a particularpotentiometer is used to control more than one channel at the same time.Once an offset is programmed between two pots, then this offset will be maintained when the master pot isadjusted. If an offset has been programmed then a “*” will be shown next to the relevant channel on themain display when the pot is moved.The potentiometer offset screen is reached by moving to the right (arrow) on the pot assign display andthen pressing the EXE key. The offsets can be set for each potentiometer in steps of 0.1 dB. To reset aspecific offset to zero rapidly, simply press the UP and DOWN menu keys simultaneously when theparticular offset is highlighted. On an external USB keyboard the letter “R” will reset the specific value andCtrl + R will reset ALL offset values.Pre-record functionThe pre-record function stores audio in a closed loop file prior to recording, indicated by the flashing RECled. When the main selector is moved from TEST to REC, the contents of the buffer will immediately berecorded at the beginning of the recording as if the Nagra VI were already in record prior to the moment theactual recording is activated. The pre-record time can be set from 1 second up to 20 seconds (max to 10seconds at sampling frequencies of 88.2 – 96 kHz).This feature is particularly useful while recording sound effects, where it is never certain of the exactmoment a particular sound will occur (Example: Thunder). With the pre-record active, the Nagra VI can beswitched to record as soon as the sound is heard, and it will still be recorded from the buffer memory.Note: Certain operations are not possible when the Pre-record function is active. For example you cannotchange the working drive, working folder, sampling frequency…etc while in pre-record mode,