Alesis Explore the ADAT Manual and Service Guide for Optimal Recording Performance

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Glossary

Bouncing means taking audio from one track and placing it on another. The term, sometimes called “bouncing down,” also describes the process of mixing several tracks onto one or two.

Bus

A bus generally refers to any common signal pathway. In a mixer, a bus is usually a wire that is or can be made common to the outputs of any or all channels in the mixer. Examples of buses include the main stereo mix, sub-mixes, monitor buses and aux sends.

C

Channel

In audio, a channel is an internal audio path maintained separately from other audio paths of identical function. Mixer input strips are examples of channels, but an audio snake also has channels.

Chase/Lock

Chase/Lock refers to a tape machine’s ability to read incoming timecode, locate its tape to the position indicated by the timecode, and synchronize playback to the incoming timecode.

Clip

In the analog world, clipping occurs when the input to a circuit exceeds the gain of the circuit. The circuit passes the signal at its maximum value. All input values exceeding the maximum value are “clipped.” The result is audio distortion. In digital audio, clipping occurs when the input to an A/D exceeds the voltage represented by the maximum number the A/D is capable of transmitting.

Crossfade

A crossfade is a gradual “dissolve” between two portions of audio; one segment of audio fades out while the other fades in. When punching in on the XT, the audio on tape is faded out while the new audio which is being recorded is faded in.

D

DAT

Digital Audio Tape. This term has come to mean specific digital audio tape recorders that use cartridges smaller than those of a standard cassette, and which record two tracks of digital audio (and sometimes timecode).

Digital I/O

Input and output connections where signals passed from one stage to another remain in the digital domain. The XT has digital I/O connectors that carry digital data for all eight tracks.

D/A or Digital-to-Analog Converter

The device that converts digital signals back into an analog format so that they can be heard.

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 Chapter Setting UPAC Power Hookup Unpacking and InspectionSetting Up Line Conditioners and Protectors About Audio CablesInput Normaling Basic Audio HookupWord on ADAT’S S-VHS Cassette Tape Threaded VS. UnthreadedAvoiding Electromagnetic Interference Operating EnvironmentThermal Considerations in Rack Mounting Mounting on a Shelf or NON-RACK EnclosureABS n0 F0 POWER-UP,AND Tape InsertionYour First Session ABS 0H 15M 48SRecording While Formatting Formatting a Tape a MustSample Rate Selection Formatting a NEW TapeMaking a Recording Track Selection and Setting LevelsTo record-enable a track REL 0H 01M 29SRecord LED turns off, while the Play LED remains lit Transport ButtonsRecording To make a recordingReviewing and Cueing To engage Review modeTo engage Cue mode PlaybackLocating REL 0H 00M 00SPage To loop a section of tape Creating a LoopMeasure twice or more, and cut only once Automated RecordingRehearsing To automatically punch in and outPitch Control Track DelayABS 00 % 00 C 70 mSTo bounce audio from one track to another To adjust the display brightnessTrack Copy Display BrightnessAnalog Audio Unbalanced Outputs Input Jack CharacteristicsConnections Analog Audio Unbalanced InputsAdditional grounds Analog Audio Balanced Inputs and OutputsInput Mode Analog Audio Input ModeTo synchronize multiple XTs and/or ADATs Sync IN/OUTTo connect the digital optical network Digital Audio IN/OUTVersa FootswitchesRehearse and Auto Record features XT RemoteComplete Format Basic OperationsTape Formatting Formatting ConsiderationsBe sure the tape is completely rewound Format ExtendTo extend the format on a partially formatted tape ABS Pr 0t 0 FFABS Pr 0t 0 n Write Protect OverrideReading the Display Display Icons Basic Operations Selected 01M 29STime Counter & ABS/REL Button LocateEditing Individual Digits Basic EditingEdit Value Button Entering Numeric ValuesTrack Copy Input SelectAnalog Input Digital InputBasic Operations Auto Input Monitor Input MonitorALL Input Monitor Recording a Benchmark T APE Peak Mode ButtonFine Meter Mode MetersSetting Levels Record EnableFast Forward /CUE Transport ControlsEject Rewind /REVIEWTo start recording RECORD/PUNCH in or OUTStop Whether the tape being played is formatted or notTo select the sample rate Sample Rate ClockRecord Crossfade Time Positions as beforeDisplaying Frames VS THS/SECONDS FA dE 2To set the Crossfade Time About Pitch Changing 10 mS To turn Track Delay on and offTo set the Track Delay amount To set multiple tracks to the same Track Delay valueAbsolute ABS Time VS . Relative Time Autolocation ControlsLocate To edit a Locate Point memory Setting Locate PointsLocating To store a Locate Point memory on the flyLoop Limit Auto LoopingAuto Return Auto PlayRehearsal Auto RecordTape Length Looped RecordingEuropean 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 Achieving Lock Master /SLAVE InteractionFormatting Multiple Tapes Independent Slave ModeMaster Format ENABLED, Complete Format Master Format ENABLED, Format ExtendMaster Format DISABLED, Format Extend Master Format DisabledBefore punching into format record Reassigning Channels to Different Tracks Making Digital BackupsRecording Digital Audio Bouncing Tracks Between AdatsRecording Digital Audio from Other Sources To make a backup tapeDigital Clock Considerations Tape OffsetABS 0H 00M 00S Setting the Machine OffsetInput Monitoring Combining XTS and AdatsXT Transport Speed Sample Rate VS. Pitch ControlPolarity Differences Here are some possible solutionsConnections Multiple ADAT-XT Operation Chapter Multiple ADAT-XT Operation Adat XT Reference Manual Combined MULTITRACK/MASTERING Deck ApplicationsLIVE/LONG-TERM Recording Midi Systems Virtual Tracking Midi Machine Control Virtual Remote ControlLocking to Video Code only Master Computer ControlModular Recording Libraries and ArchivesCalculating Tape Offset Using the Locates Using Track Copy AS a Digital RouterPress Edit VALUE, then press Locate Appendix a Digital Recording ConceptsAnalog Recording Basics Digital Recording BasicsWHY S-VHS? Appendix B TroubleshootingTROUBLE-SHOOTING Index RE-INITIALIZINGABS d1 SP r E9 Error Rate DisplayAbout Error Rate Readings ABS d1 SP E rrAdat Head Maintenance Drum Time Display Tape Maintenance Safe TapeMAINTENANCE/SERVICE CleaningCustomers in the USA MaintenanceObtaining Repair Service Refer ALL Servicing to AlesisAppendix B Troubleshooting Appendix C Error CodesAutomatic Brake Calibration Procedure Steps to Take Before Calling for Help SpecificationsAppendix D Audio Digital Inputs/Outputs Or Analog-to-Digital Converter GlossaryDAT BusMMC MidiSMPTE/LTC OutputVitc VHSIndex Index Adat XT Reference Manual