Alesis ADAT-XT manual Pitch Control, About Pitch Changing

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Chapter 4: Basic Operations

PITCH CONTROL

The Pitch function controls the speed of the tape, and thus the pitch of the audio recorded on tape. It displays speed as percentage and as cents. A cent is 1/100th of a semitone. For example, if a song is originally recorded in the key of C, then played back with the pitch raised 100 cents, it will be in the key of C#. The XT’s Pitch control has a range of -300 to +100 cents when using a sample rate of 48 kHz, and a range of -200 to +200 when using 44.1 kHz. The Pitch controls will not function while locking to an external clock (i.e. while the XT is slaved to another ADAT or is locking to an external digital clock).

The PITCH [s] and [t] buttons control the amount of pitch change. When either button is pressed once, the PITCH icon lights in the display, and the TIME counter immediately displays the current amount of Pitch change. The Pitch amount is displayed both as a percentage (%) and as cents. After a few seconds, the TIME counter reverts back to its normal mode.

ABS 00. 00% 00. 00 C

(Percentage) / (Cents)

To set the Pitch amount:

¿If Edit mode is currently on (EDIT icon lit), press [EDIT VALUE] to exit Edit mode. The EDIT icon should be off.

¡Press and hold either PITCH [s] or [t].

After holding for more than .5 seconds, the Pitch amount will start either increasing or decreasing, depending on which button was pressed.

¬To immediately set the Pitch amount to +100, hold [SET LOCATE] and press [s].

÷To immediately set the Pitch amount to -300, hold [SET LOCATE] and press [t].

ƒTo reset the Pitch amount to 0, simultaneously press both [s] and [t]. Note: This is not possible while recording.

ABOUT PITCH CHANGING

Here are a few things to consider when chaning the XT’s pitch:

• One of the PITCH arrow icons will remain lit in the display to remind you that the pitch has been changed from standard pitch.

The counter will not elapse in real time when the pitch is set to a value other than zero.

When you change the pitch on ADAT-XT, the sampling rate will also change. The lowest sampling rate is 40.4 kHz, the highest is 50.8 kHz.

If the internal clock is set to 48 kHz, but the pitch is lowered -147 cents, the sampling rate is 44.1 kHz. However, for accurate TIME counter display it is better to set the pitch to 0 and change the clock rate (see page 44).

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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 Unpacking and Inspection Setting UPAC Power Hookup ChapterSetting Up About Audio Cables Line Conditioners and ProtectorsBasic Audio Hookup Input NormalingThreaded VS. Unthreaded Word on ADAT’S S-VHS Cassette TapeMounting on a Shelf or NON-RACK Enclosure Operating EnvironmentThermal Considerations in Rack Mounting Avoiding Electromagnetic InterferenceABS 0H 15M 48S POWER-UP,AND Tape InsertionYour First Session ABS n0 F0Formatting a NEW Tape Formatting a Tape a MustSample Rate Selection Recording While FormattingREL 0H 01M 29S Track Selection and Setting LevelsTo record-enable a track Making a RecordingTo make a recording Transport ButtonsRecording Record LED turns off, while the Play LED remains litPlayback To engage Review modeTo engage Cue mode Reviewing and CueingREL 0H 00M 00S LocatingPage Creating a Loop To loop a section of tapeTo automatically punch in and out Automated RecordingRehearsing Measure twice or more, and cut only once70 mS Track DelayABS 00 % 00 C Pitch ControlDisplay Brightness To adjust the display brightnessTrack Copy To bounce audio from one track to anotherAnalog Audio Unbalanced Inputs Input Jack CharacteristicsConnections 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 networkXT Remote FootswitchesRehearse and Auto Record features VersaFormatting Considerations Basic OperationsTape Formatting Complete FormatFormat Extend Be sure the tape is completely rewoundWrite Protect Override ABS Pr 0t 0 FFABS Pr 0t 0 n To extend the format on a partially formatted tapeReading the Display Display Icons Basic Operations Locate 01M 29STime Counter & ABS/REL Button SelectedEntering Numeric Values Basic EditingEdit Value Button Editing Individual DigitsDigital Input Input SelectAnalog Input Track CopyBasic Operations ALL Input Monitor Input MonitorAuto Input Monitor Meters Peak Mode ButtonFine Meter Mode Recording a Benchmark T APERecord Enable Setting LevelsRewind /REVIEW Transport ControlsEject Fast Forward /CUEWhether the tape being played is formatted or not RECORD/PUNCH in or OUTStop To start recordingPositions as before Sample Rate ClockRecord Crossfade Time To select the sample rateTo set the Crossfade Time FA dE 2Displaying Frames VS THS/SECONDS About Pitch Changing To set multiple tracks to the same Track Delay value To turn Track Delay on and offTo set the Track Delay amount 10 mSLocate Autolocation ControlsAbsolute ABS Time VS . Relative Time To store a Locate Point memory on the fly Setting Locate PointsLocating To edit a Locate Point memoryAuto Play Auto LoopingAuto Return Loop LimitLooped Recording Auto RecordTape Length RehearsalErroneously selected, to avoid damage to the tape To set the tape lengthEuropean equivalents and approximate recording times Footswitch Controlled Autolocating Footswitch ControlsFootswitch Controlled Punching Using the XT Remote Synchronizing Machines OperationOverview Master /SLAVE Interaction Achieving LockMaster Format ENABLED, Format Extend Independent Slave ModeMaster Format ENABLED, Complete Format Formatting Multiple TapesBefore punching into format record Master Format DisabledMaster Format DISABLED, Format Extend Bouncing Tracks Between Adats Making Digital BackupsRecording Digital Audio 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 00SSample Rate VS. Pitch Control Combining XTS and AdatsXT Transport Speed Input MonitoringConnections Here are some possible solutionsPolarity Differences Multiple ADAT-XT Operation Chapter Multiple ADAT-XT Operation Adat XT Reference Manual Applications Combined MULTITRACK/MASTERING DeckLIVE/LONG-TERM Recording Computer Control Midi Machine Control Virtual Remote ControlLocking to Video Code only Master 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 Basics Digital Recording ConceptsAnalog Recording Basics Appendix aWHY S-VHS? RE-INITIALIZING TroubleshootingTROUBLE-SHOOTING Index Appendix BABS d1 SP E rr Error Rate DisplayAbout Error Rate Readings ABS d1 SP r E9Adat Head Maintenance Cleaning Tape Maintenance Safe TapeMAINTENANCE/SERVICE Drum Time DisplayRefer ALL Servicing to Alesis MaintenanceObtaining Repair Service Customers in the USAAppendix B Troubleshooting Error Codes Appendix CAutomatic Brake Calibration Procedure Appendix D SpecificationsSteps to Take Before Calling for Help Audio Digital Inputs/Outputs Glossary Or Analog-to-Digital ConverterBus DATMidi MMCOutput SMPTE/LTCVHS VitcIndex Index Adat XT Reference Manual