Tascam RC-898 owner manual Chasing with an offset, Auto Offset function

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Section 7.2 - Unit-related functions

1)From menu group F, move the cursor to Key Mode, and press SELECT:

K e y M o d e

A l l

2) Use the UP or DOWN key to select between All and Individual.

If you select Individual, only that unit cur- rently selected for control (see 5.1.1, “Selecting the unit to which operations refer”) will be con- trolled by the three keys mentioned above. If you select All, then all DTRS units connected will respond to the commands of the ALL SAFE, ALL INPUT and AUTO MON keys.

7.2.3 Chasing with an offset

It is not always required that the DTRS units are in perfect synchronization with each other.

For instance, it may be that three DTRS units are being used for video post-production purposes. The dialog and Foley tracks of a project have been recorded on one DTRS tape (up to eight tracks), and the backing music has been recorded on two more tapes (16 tracks). Obviously, the units replaying the two music tapes should be synchro- nized to each other, but the music may need to be “slipped” relative to the dialog and Foley unit (which is, in turn, synchronized to the timecode on the video, as described in 8.1.8, “Chasing to external timecode”).

Once the dialog and Foley is synchronized to the video timecode, “slipping” the two music units is accomplished in the following way:

1)From menu group 3, move the cursor to Mcn Offset and press SELECT:

M a c h i n e O f f s e t

 

M a c h i n e

2

+ 0 0 : 0 0 : 0 0 : 0 0

A B S

 

 

2)Choose the first machine which will take the chase offset (in the illustration above, we show machine 2) by using the SHIFT and UP (NEXT) keys.

3)Use the numeric keypad to enter an offset value which is shown on the LOCATE TIME/VALUE display. The +/- key of the numeric keypad is used to change between positive and negative values.

The offset value may be ±2 hours relative to the master time.

You can also use the cursor keys to enter a value directly on the display screen.

NOTE

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

The Auto Offset function described below can also be used to set the offset.

4)Transfer the value to the display screen by pressing and holding down the SHIFT key [23] and pressing the ENTER/LOAD key [20].

5)Use the SHIFT and UP (NEXT) keys to select any other units which will chase with an offset. When the master DTRS unit plays, the slave units should now chase at the offset value you have set up.

If an offset value is set on any unit or units, and the Time Mode is set to ABS, the OFFSET indi- cator [10] will light.

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

If adjustment finer than a frame is required, it is suggested that you use the Track Delay function (see 7.1.1, “Track delay”).

7.2.4 Auto Offset function

In addition to the manual offset entry, it is also possible to set an offset automatically by follow- ing the procedure below:

1) From menu group 3, move the cursor to McnOffset and press SELECT.

7-3

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Contents RC-898 For U.S.A RC-898 features Table of Contents IntroductionConnections Menu and basic operationsExternal control and settings Table of Contents Making settings on the Dtrs unitsTimecode functions Menu and parameter referenceKey features Key featuresIntroduction UnpackingPrecautions and recommendations Precautions and recommendationsBattery backup Digital audio cablesReference clock in a digital studio AccessoriesAccessories Accessories RC-898 features Front panel Lock Status indicators Machine number indicators Through 6, E1, E2Vari indicators Time Mode indicatorsData INC/DEC key and indicator Preset keyRepeat key and indicator Front panel ENTER/LOAD keyRear Panel Contrast Rear Panel DIP switches 1Connection to Dtrs units ConnectionsConnection to Dtrs units Machine IDsConnections RS-422 Units Connections parallel unitsConnections parallel units Connections GPI event unitsMemory and batteries Memory and batteriesMemory and batteries Navigation Menu and basic operationsNavigation Invalid operationsFast setting of values Resetting values to zeroSetting values using the Value display Data entryCommonly-used menus Selecting the unit controlled by the menusStoring and recalling user setups Storing and recalling user setupsRecalling menus using the function keys Saving the current setupRecalling a user setup or restoring factory settings Storing and recalling user setups Transport controls Basic Dtrs operationsSelecting the unit to which operations refer Formatting tapesMonitoring Shuttle modeMonitoring Arming tracksShuttle muting Shuttle monitoringMonitoring Monitoring flowchart DA-88 and DA-38 Monitoring Monitoring tablesMonitoring Setting a relative time reference Setting the precisionLocation functions Reference modesABS setting ABS settingSelecting Time Mode Return-to-zeroLocation operations Setting the location pre-roll valueLocation operations Auto playEditing a location Manual entry of a location pointStoring the location in a memory Recalling a location memoryRepeating a section Repeating a sectionRepeated entry of location points Editing a location memoryPunch operations Crossfade times Performing the punch recording Setting pre-roll and post-roll timesRehearsing the punch recording Punch operations Track delay Making settings on the Dtrs unitsTrack operations Track operationsUnit-related functions Key ModeUnit-related functions Rec Mute functionAuto Offset function Chasing with an offsetClock selection Checking the offsetOutput timing From menu group E, move the cursor to eitherInput selection Varispeed pitch controlWord length DitherReference levels Unit-related functions Confidence modeMeter modes Sine oscillatorN e O s c i l l a t o r C h i n e Unit-related functions Primary timecode functions Timecode functionsPrimary timecode functions Selecting the timecode sourceSelecting a timecode type Setting the generator start timeRecording the timecode on a Dtrs timecode track Checking the generator progressRewind the tape to the beginning Start the timecode sourceChasing with a timecode offset Chasing to external timecodeAdvanced timecode functions Independent clock settingsAdvanced timecode functions Auto Timecode Offset functionRechase mode Error bypassSynchronization of timecode Pull up and pull downPark position Fast LTCMidi Timecode output Play the master unit Individual recording status while chasing timecodeVideo resolve D e o R e s o l v e C h i n e O f f E e Advanced timecode functions Controlling GPI devices External control and settingsControlling the parallel port device Controlling the serial port 9-pin Controlling the serial port 9-pinSelecting the serial port device Location pre-roll on the serial unitSerial unit timing source Split mode on the serial unitControlling recording operations on the serial unit Use the UP and Down keys to select between Split and NormalOther Dtrs control functions Other Dtrs control functionsChoosing a control protocol Track mapping functionsTimecode track mapping Recording delayRemote track arming Device emulationMMC ID Fast wind speedCue-up tally D I / B u s I D C h i n e C e i v e Other Dtrs control functions Menu group Menu and parameter reference Menu groupsMenu groups 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 SpecificationsDimensions 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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