Tascam RC-898 Advanced timecode functions, Auto Timecode Offset function, Timecode output source

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Section 8.2 - Advanced timecode functions

3)Transfer the value from the LOCATE TIME/ VALUE display to the LCD display by holding down the SHIFT key and pressing the ENTER/ LOAD key.

NOTE

98If you are using a DA-98 with ABS timing used to synthesize timecode, the DA-98 allows you to set an ABS offset, which may be used in place of this function (see 8.1.2, “Synthesizing timecode from ABS times” and also 10.2.3 of the DA-98 manual.

If you need to “fine-tune” this value, you can use the UP and DOWN keys to adjust the value of the offset while monitoring the playback of the units.

NOTE

There is an “invisible” field immediately to the right of the frames field. If you place the cursor there and increment or decremennt the value, you can change the time as a whole (as the frames field passes its maximum value, the seconds field will increment).

8.1.10 Auto Timecode Offset function

In addition to the manual offset entry, it is also possible to set a timecode offset automatically by following the procedure below:

1)From menu group 4, move the cursor to TC Offset and press SELECT.

2)Use the RIGHT key to move the cursor to a second “invisible” field to the right of the frames field. The display will appear as follows:

T i m e c o d e O f f s e t

M a c h i n e 2

A U T O O F F S E T

3)Locate the two tapes (master and slave) so that they have the right offset.

You can play up the tapes and pause them once they have been lined up, or carry out the next step while either or both of the tapes is being replayed.

4)Press either the UP or DOWN key at the correct offset time to capture and store the offset.

NOTE

The value entered in this way can be edited later using the technique described above.

8.1.11 Independent clock settings

98It is sometimes useful to be able to reference different clock timings for the different DTRS units in the chain (if one unit is recording digital input from another digital source and another is referenced to video, for example).

To allow independent settings (this function is only available if the time mode is set to timecode, and the DA-98 is acting as a slave):

1)From menu group A, move the cursor to ClkMode (clock mode), and press SELECT:

C l o c k M o d e

 

 

I n d v

 

»

 

A u t o

»

» »

 

M a c h i n e 1

2 3 4

5 6

 

 

 

 

2)Use the UP and DOWN keys to select between automatic (Auto) and individually-selectable (Indv) clock settings.

In the example above, the first three DTRS units have their clocks set automatically according to the first clock setting (i.e. units 2 and 3 cannot have their clocks set using the function described in 7.2.6, “Clock selection”), and the fourth unit can have its clock set independently of the other three.

NOTE

In a system with multiple digital audio devices, the same clock should be used by all units which are to perform digi- tal audio transfer (e.g. dubbing, etc.). If units have different reference clocks, you cannot transfer digital audio between them.

8.2 Advanced timecode functions

The following functions are designed to extend the capabilities of the DTRS system under various circumstances when working with timecode-based setups. These functions are described more fully in the DTRS manuals. Refer to the appropriate sections of these manuals for further information, if required.

8.2.1 Timecode output source

98The DA-98 is able to output timecode from a variety of sources.

8-5

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Contents RC-898 For U.S.A Menu and basic operations Table of Contents IntroductionRC-898 features ConnectionsMenu and parameter reference Table of Contents Making settings on the Dtrs unitsExternal control and settings Timecode functionsUnpacking Key featuresKey features IntroductionDigital audio cables Precautions and recommendationsPrecautions and recommendations Battery backupAccessories AccessoriesReference clock in a digital studio Accessories RC-898 features Front panel Time Mode indicators Machine number indicators Through 6, E1, E2Lock Status indicators Vari indicatorsFront panel ENTER/LOAD key Preset keyData INC/DEC key and indicator Repeat key and indicatorRear Panel Contrast Rear Panel DIP switches 1Machine IDs ConnectionsConnection to Dtrs units Connection to Dtrs unitsConnections GPI event units Connections parallel unitsConnections RS-422 Units Connections parallel unitsMemory and batteries Memory and batteriesMemory and batteries Invalid operations Menu and basic operationsNavigation NavigationData entry Resetting values to zeroFast setting of values Setting values using the Value displayCommonly-used menus Selecting the unit controlled by the menusSaving the current setup Storing and recalling user setupsStoring and recalling user setups Recalling menus using the function keysRecalling a user setup or restoring factory settings Storing and recalling user setups Formatting tapes Basic Dtrs operationsTransport controls Selecting the unit to which operations referArming tracks Shuttle modeMonitoring MonitoringShuttle muting Shuttle monitoringMonitoring Monitoring flowchart DA-88 and DA-38 Monitoring Monitoring tablesMonitoring Reference modes Setting the precisionSetting a relative time reference Location functionsReturn-to-zero ABS settingABS setting Selecting Time ModeAuto play Setting the location pre-roll valueLocation operations Location operationsRecalling a location memory Manual entry of a location pointEditing a location Storing the location in a memoryEditing a location memory Repeating a sectionRepeating a section Repeated entry of location pointsPunch operations Setting pre-roll and post-roll times Rehearsing the punch recordingCrossfade times Performing the punch recording Punch operations Track operations Making settings on the Dtrs unitsTrack delay Track operationsRec Mute function Key ModeUnit-related functions Unit-related functionsAuto Offset function Chasing with an offsetFrom menu group E, move the cursor to either Checking the offsetClock selection Output timingDither Varispeed pitch controlInput selection Word lengthSine oscillator Unit-related functions Confidence modeReference levels Meter modesN e O s c i l l a t o r C h i n e Unit-related functions Selecting the timecode source Timecode functionsPrimary timecode functions Primary timecode functions Selecting a timecode type Setting the generator start timeStart the timecode source Checking the generator progressRecording the timecode on a Dtrs timecode track Rewind the tape to the beginningChasing with a timecode offset Chasing to external timecodeAuto Timecode Offset function Independent clock settingsAdvanced timecode functions Advanced timecode functionsPull up and pull down Error bypassRechase mode Synchronization of timecodeFast LTC Midi Timecode outputPark position Individual recording status while chasing timecode Video resolvePlay the master unit D e o R e s o l v e C h i n e O f f E e Advanced timecode functions External control and settings Controlling the parallel port deviceControlling GPI devices Location pre-roll on the serial unit Controlling the serial port 9-pinControlling the serial port 9-pin Selecting the serial port deviceUse the UP and Down keys to select between Split and Normal Split mode on the serial unitSerial unit timing source Controlling recording operations on the serial unitTrack mapping functions Other Dtrs control functionsOther Dtrs control functions Choosing a control protocolDevice emulation Recording delayTimecode track mapping Remote track armingFast wind speed Cue-up tallyMMC ID D I / B u s I D C h i n e C e i v e Other Dtrs control functions Menu and parameter reference Menu groups Menu groupsMenu group GPI Time value to Timecode type Output All parameters On, off 7, Midi Time Fast wind mode Menu group E Menu group aMenu group F Alphabetical list of menu items Alphabetical list of menu itemsSpecifications DimensionsSpecifications Dimensions Dtrs Index A-EABS 6-2,8-2 Index F-OIndex P-T Generator 8-1,8-2,10-5,10-6 Index U-ZRC-898
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