Alesis ADAT-XT manual Recording Digital Audio from Other Sources, To make a backup tape

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Chapter 5: Multiple ADAT-XT Operation

XT tapes can be backed up for safety by copying all eight tracks to another XT (or ADAT compatible machine) via the digital bus. The result is a perfect digital duplication of the original. It’s a good idea to make backups on a regular basis, whenever you finish work for the day, or complete a project. The backup can either be sample accurate to the time reference or not. This depends on whether or not the two machines are synchronized together via a 9-pin connector cable. It is recommended, however, that you do have the Sync cables connected between the machines, as described in the section entitled Synchronizing Machines on page 56.

When making a backup, the tape you are backing up is normally inserted into the master machine. The tape you are backing up to is inserted into one of the slave machines. This is recommended since the slave machine comes after the master machine in the system chain. NOTE: [TRACK COPY] is not used to make digital tape backups from machine to machine. Track Copy is only used to copy between tracks on the same machine.

To make a backup tape:

¿Connect a male/male, 9-pin D connector cable between the [SYNC OUT] of the master XT and the [SYNC IN] of the slave XT.

This synchronizes the two machines; the master XT becomes the master (ID 1) and the slave machine becomes the slave (ID 2).

¡Connect a fiber optic cable between the [DIGITAL OUT] of the master XT and the [DIGITAL IN] of the slave XT.

This routes the digital audio from the master XT to the slave machine.

¬Connect a fiber optic cable between the [DIGITAL OUT] of the slave XT and the [DIGITAL IN] of the master XT.

This routes the digital audio back from the slave XT to the master machine.

÷Insert the tape to be backed up into the master XT.

ƒInsert a blank tape into the slave machine.

ªPress the [DIGITAL INPUT] button on both the master XT and the slave XT. The DIGITAL icon will be lit on both machines.

DPress all RECORD ENABLE buttons [1] – [8] on the slave XT.

The RECORD LEDs for tracks 9–16 (all eight of the slave machine’s tracks) will flash. J Be sure that the RECORD ENABLE buttons are switched off for tracks 1–8 of the

master XT and the write-protect tab (or record tab) is removed (open).

«Press both [PLAY] and [RECORD] on the master XT.

Since this is the master machine (ID 1), it will simply enter play (since none of its tracks are in record-ready) while engaging record on the slave machine.

»Press [STOP] on the master XT after backing up is complete. Both machines will stop.

If a tape is in very bad condition, you may have difficulty copying it from the master XT to a slave. If the error count is so high that the XT momentarily loses sync during playback, all following slaves will be taken out of record automatically. In this case, put the new tape into the master, and the damaged tape in the slave, and copy from the slave to the master.

RECORDING DIGITAL AUDIO FROM OTHER SOURCES

Recording digital audio onto the XT from a source other than an ADAT Compatible device requires a digital audio interface, like the Alesis AI-1. The AI-1 converts either AES/EBU or S/PDIF digital audio protocols into the Alesis Multichannel Optical

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ADAT XT Reference Manual

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Contents Alesis ADAT-XT Introduction Adat XT Reference Manual Conventions Adat XT Reference Manual Contents Basic Operations Analog Recording Basics Digital Recording Basics Why S-VHS? Index Maintenance/Service Cleaning Obtaining Repair Service Setting UP AC Power HookupUnpacking and Inspection ChapterSetting Up About Audio Cables Line Conditioners and ProtectorsBasic Audio Hookup Input NormalingThreaded VS. Unthreaded Word on ADAT’S S-VHS Cassette TapeOperating Environment Thermal Considerations in Rack MountingMounting on a Shelf or NON-RACK Enclosure Avoiding Electromagnetic InterferencePOWER-UP,AND Tape Insertion Your First SessionABS 0H 15M 48S ABS n0 F0Formatting a Tape a Must Sample Rate SelectionFormatting a NEW Tape Recording While FormattingTrack Selection and Setting Levels To record-enable a trackREL 0H 01M 29S Making a RecordingTransport Buttons RecordingTo make a recording Record LED turns off, while the Play LED remains litTo engage Review mode To engage Cue modePlayback Reviewing and CueingREL 0H 00M 00S LocatingPage Creating a Loop To loop a section of tapeAutomated Recording RehearsingTo automatically punch in and out Measure twice or more, and cut only onceTrack Delay ABS 00 % 00 C70 mS Pitch ControlTo adjust the display brightness Track CopyDisplay Brightness To bounce audio from one track to anotherInput Jack Characteristics ConnectionsAnalog Audio Unbalanced Inputs Analog Audio Unbalanced OutputsAnalog Audio Balanced Inputs and Outputs Additional groundsAnalog Audio Input Mode Input ModeSync IN/OUT To synchronize multiple XTs and/or ADATsDigital Audio IN/OUT To connect the digital optical networkFootswitches Rehearse and Auto Record featuresXT Remote VersaBasic Operations Tape FormattingFormatting Considerations Complete FormatFormat Extend Be sure the tape is completely rewoundABS Pr 0t 0 FF ABS Pr 0t 0 nWrite Protect Override To extend the format on a partially formatted tapeReading the Display Display Icons Basic Operations 01M 29S Time Counter & ABS/REL ButtonLocate SelectedBasic Editing Edit Value ButtonEntering Numeric Values Editing Individual DigitsInput Select Analog InputDigital Input Track CopyBasic Operations Auto Input Monitor Input MonitorALL Input Monitor Peak Mode Button Fine Meter ModeMeters Recording a Benchmark T APERecord Enable Setting LevelsTransport Controls EjectRewind /REVIEW Fast Forward /CUERECORD/PUNCH in or OUT StopWhether the tape being played is formatted or not To start recordingSample Rate Clock Record Crossfade TimePositions as before To select the sample rateDisplaying Frames VS THS/SECONDS FA dE 2To set the Crossfade Time About Pitch Changing To turn Track Delay on and off To set the Track Delay amountTo set multiple tracks to the same Track Delay value 10 mSAbsolute ABS Time VS . Relative Time Autolocation ControlsLocate Setting Locate Points LocatingTo store a Locate Point memory on the fly To edit a Locate Point memoryAuto Looping Auto ReturnAuto Play Loop LimitAuto Record Tape LengthLooped Recording RehearsalEuropean equivalents and approximate recording times To set the tape lengthErroneously selected, to avoid damage to the tape Footswitch Controlled Punching Footswitch ControlsFootswitch Controlled Autolocating Using the XT Remote Overview OperationSynchronizing Machines Master /SLAVE Interaction Achieving LockIndependent Slave Mode Master Format ENABLED, Complete FormatMaster Format ENABLED, Format Extend Formatting Multiple TapesMaster Format DISABLED, Format Extend Master Format DisabledBefore punching into format record Making Digital Backups Recording Digital AudioBouncing Tracks Between Adats Reassigning Channels to Different TracksTo make a backup tape Recording Digital Audio from Other SourcesTape Offset Digital Clock ConsiderationsSetting the Machine Offset ABS 0H 00M 00SCombining XTS and Adats XT Transport SpeedSample Rate VS. Pitch Control Input MonitoringPolarity Differences Here are some possible solutionsConnections Multiple ADAT-XT Operation Chapter Multiple ADAT-XT Operation Adat XT Reference Manual Applications Combined MULTITRACK/MASTERING DeckLIVE/LONG-TERM Recording Midi Machine Control Virtual Remote Control Locking to Video Code only MasterComputer Control Midi Systems Virtual TrackingLibraries and Archives Modular RecordingUsing Track Copy AS a Digital Router Calculating Tape Offset Using the LocatesPress Edit VALUE, then press Locate Digital Recording Concepts Analog Recording BasicsDigital Recording Basics Appendix aWHY S-VHS? Troubleshooting TROUBLE-SHOOTING IndexRE-INITIALIZING Appendix BError Rate Display About Error Rate ReadingsABS d1 SP E rr ABS d1 SP r E9Adat Head Maintenance Tape Maintenance Safe Tape MAINTENANCE/SERVICECleaning Drum Time DisplayMaintenance Obtaining Repair ServiceRefer ALL Servicing to Alesis Customers in the USAAppendix B Troubleshooting Error Codes Appendix CAutomatic Brake Calibration Procedure Steps to Take Before Calling for Help SpecificationsAppendix D Audio Digital Inputs/Outputs Glossary Or Analog-to-Digital ConverterBus DATMidi MMCOutput SMPTE/LTCVHS VitcIndex Index Adat XT Reference Manual
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