Steinberg Time Base User Manual
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TIME BASE Reference 5 – 41 • If Time Code is received, it will be shown in the display. If the speed of the incoming Time Code falls within the “Playspeed” range, the incoming Time Code will be regenerated and sent out and the green TC- LED will be lit. If no valid Time Code signal is being received, the display shows: NO CODE. Whenever the incoming Time Code has a frame rate different from the one set on Time Base, the TC LED will blink quickly, the received frame rate will be shown and all outputs will be cut off! If LTC or MTC are selected as Clock Source, TCIN cannot be changed. In this case you must first select a different Clock Source. 9-pin Time Code is only possible in conjunction with video synchronization, i.e. the Word Clock is set to video sync: CL:V-SYNC. Parameter Explanation TCIN=Time Code Input This is where you select a Time Code mode. TCIN=OFFAll TC inputs are switched OFF. The Time Code Generator is avail- able. The TC display shows: GENERATOR. TCIN=LTCTime Base uses the Time Code coming into the LTC input. TCIN=MTCTime Base uses the Time Code coming into the MIDI input. TCIN=USBEnables MIDI Time Code synchronization via the USB port. TCIN=VITCTime Base uses the Time Code coming into the Video input. TCIN=M.ATime Base uses the Time Code coming in from a 9-pin machine A (RS422/P2), e.g. Betacam, DOREMI or 3348. Reading 9-pin-Time Code is only possible in connection with video sync. FRM=25 TCIN=LTC 00:00:00:00 SR=96.00 CL:INTERNAL TX=10:00:00:00 STOP P.1
TIME BASE 5 – 42 Reference • The virtual 9-pin Machine can also be controlled by MMC commands. ❐MMC control corresponds to direct operation (9-pin LOCAL + REMOTE are active). This means, that all connected systems can simultaneously be con- trolled from any of them, as long as the connected systems allow for this. The difference between the various 9-pin emulations lies mainly in different methods used for track selection and machine recognition. Operation with most 9-pin Controllers (editing systems) is therefore possible. • The 9-pin emulation only works with Video-Sync. Parameter Explanation VTM=_____Time Base has been switched to Virtual Time Machine Mode - The parameter TCIN= changes to VTM=. VTM=M.V MIDIVirtual MIDI Machine. Time Base behaves like a tape machine, that is controlled by MMC commands. The LTC, MTC, VITC and VST System Link Generator is active, and can e.g. be used for synchronization of VST System Link host applications like Nuendo, LTC and VITC slaves. Virtual MIDI Machine: If you set CL: to V-SYNC, all Time Code outputs are in sync to video! M.A BVW75Time Base emulates a BVW75 on the 9-pin-interface A. M.A DVW-A500Time Base emulates a DVW-A500 on the 9-pin-interface A. M.A PCM-3348Time Base emulates a 3348 on the 9-pin-interface A. M.A: -VTM9-Time Base emulates a 64 track audio machine on the 9-pin- interface A. FRM=25 VTM=M.A BVW75 SR=96.00 CL:V-SYNC TX=10:00:00:00 STOP P.1
TIME BASE Reference 5 – 43 The SR parameter is used to select the desired sample rate. The options: For each frequency there are the additional positions: This generates the difference needed to precisely offset 29.97 (NTSC) frames to 30 frames. If Varispeed is switched on, a v appears after the sample rate in the display: • The sample rates of Time Base and the synchronized devices must be set to the same value! Parameter Sample rate Application SR=16.0016 kHz Multimedia SR=22.0522.05 kHz Multimedia SR=24.0024 kHz Multimedia SR=32.0032 kHz Originally provided for Digital Radio SR=44.1044.1 kHz CD SR=48.0048 kHz Film and TV SR=64.0064 kHz Multimedia SR=88.2088.2 kHz Double CD sample rate SR=96.0096 kHz DVD-Audio SR=176.4176.4 kHz Four times CD sample rate SR=192.0192 kHz DVD-Audio SR=48.00UU (Up) = increase by ~0,1% SR=48.00DD (Down) = decrease by ~0,1% SR= 48.00 v FRM=25 TCIN=OFF GENERATOR SR=96.00 CL:INTERNAL TX=10:00:00:00 STOP P.1
TIME BASE 5 – 44 Reference • The following Clock Sources can only be selected, whenever the corre- sponding Time Code is selected in the TCIN field: • Please note that these three signals are not constantly available. If one of these signals are interrupted, Time Base switches into Word Clock Hold mode and indicates this with its yellow HOLD-LED. When one of these clock modes is selected, Time Base first analyses the characteristics of the incom- ing Time Code. The blue LED blinks during analysis (ca. 20 seconds). When Time Code starts a second time, the blue LED will be lit constantly after the lock phase. • MIDI Time Code should only be used as a Word Clock Source in special cases (to save a production). • Whenever Time Base is synchronized to one of the signals described above, this status is verified by the blue LOCK-LED. Parameter Explanation CL:Clock – This is where you select the signal source which serves as the ba- sis for generating the sampling frequency. INTERNALThe internal quartz (oscillator) is the Clock Master. V_SYNCThe House Clock (Blackburst) connected to the Video Sync In is the Clock Master. AES/EBUAn externally connected AES/EBU signal is the Clock Master. A sync conversion from 44.1 to 48 kHz is thereby possible. The frequency of the external Word Clock or AES/EBU signal will be auto- matically recognized to within ± 3% of the nearest standard sample rate and converted to the selected sample rate. Can be used to create sample rate converted dubbing copies. Not used during normal operation. Parameter Explanation LTC-HOLDLTC is the Clock Master, whenever there is no LTC at the input, the Word Clock that was generated from the most recent valid Time Code is held. LTC-NORMLTC is the Clock Master, whenever there is no LTC at the input, the normal preselected sample rate is used. This functions can only be selected if TCIN is set to LTC. MTC-HOLDMTC is the Clock Master, whenever there is no MTC at the input, the most recent Word Clock will be held. This function can only be selected when TCIN is set to MTC. FRM=25 TCIN=OFF GENERATOR SR=96.00 CL:INTERNAL TX=10:00:00:00 STOP P.1
TIME BASE Reference 5 – 45 This shows and lets you select a Time Code Generator status. Parameter Explanation TX=Transmit – The transmitted Playspeed Time Code value is shown. TXo+=The transmitted Playspeed Time Code value as modified by the Offset is shown. This function is not available during Generator operation. Parameter Explanation WAIT:Waiting for Time Code Input. During JAM-SYNC this is where the Generator is started from. RUN:Incoming Time Code will be regenerated. The following functions are only available in Generator Mode: STOP:Generator is stopped. START:Generator is running. RESET:By pressing the Left or Right button on the Time Base, the Generator is re- set to zero. EDIT:This function makes it possible to set any Start position by changing the numbers in the TX field. PRESET:By changing the numbers in the TX field a Start position (Preset) can be set, which is retained when you leave the PRESET field. Very often tapes are “striped” with a Time Code Start of 09:58:00:00 (with a picture start of 10:00:00:00). The Generator Start position thus only needs to be input once. STARTP:Start Preset. Pressing the Left or Right button causes the Generator to start from the Preset position. FRM=25 TCIN=OFF GENERATOR SR=96.00 CL:INTERNAL TX=10:00:00:00 STOP P.1 FRM=25 TCIN=OFF GENERATOR SR=96.00 CL:INTERNAL TX=10:00:00:00 STOP P.1
TIME BASE 5 – 46 Reference If Time Base is used as a Virtual Machine (VTM), this field serves as a sta- tus display and to set the start position (begin of tape). ❐In Local Mode, the VTM can not be controlled remotely! Parameter Explanation StopStatus display of the (virtual) “transport“. StillStatus Still (pause, “still frame”). PlayStatus Play. RecStatus Record. FstFwStatus Fast Forward. RwndStatus Rewind. ShtFwStatus Shuttle Forward. ShtRvStatus Shuttle Reverse. JogFwStatus Jog Forward – variable, frame by frame Forward. JogRvStatus Jog Reverse – variable, frame by frame Rewind. VarFwStatus Variable Play Forward. VarRvStatus Variable Play Reverse. LOCALWhen the cursor is placed in this field, the VTM is in LOCAL Mode. FRM=25 VTM=M.A -VTM9- SR=96.00 CL:INTERNAL TX=10:00:00:00 STOP P.1
TIME BASE Reference 5 – 47 The virtual “begin of tape” of the VTM can only be set in LOCAL mode: • Whenever the Start point is being set, the cursor must be moved away from this field, otherwise the VTM remains in LOCAL mode, and remote control is not possible. Parameter Explanation RESETPressing the Left or Right button resets the Start point to zero. EDITThis lets you set any desired Start position by changing the numbers in the TX field. PRESETBy changing the numbers in the TX field, a Start position (Preset) can be set, which is retained when you leave the PRESET field. The Start position thus only needs to be input once. SETPRESet Preset. Pressing the Left or Right button sets the VTM to the Preset position.
TIME BASE 5 – 48 Reference VITC and Time Code Inserter – Display page P.2 Parameter Explanation VIDEO:This is where the input and output for the VITC Reader/Generator and the Time Code Inserter are selected. BNC:The BNC input/output is active (Composite Video). SVHS:The S-VHS input/output is active (Y/C or Component Video). Parameter Explanation VITCVertical Interval Time Code. The Time Code is in the Video picture in 2 Lines above the visible picture (blanking interval). RL=Readlines (Lines, that contain VITC). AUTOTime Base automatically finds both VITC lines. xx xxIn special cases, both readlines can be manually set in the range from 10 to 40 (NTSC) or 6 to 36 (PAL). Parameter Explanation WL=“Write Lines” for VITC. OFFThe VITC Generator is switched off. ONThe VITC Generator is active in the “Playspeed” range. STANThe VITC-Generator is always active, even during Stop or FF/Rew, and is always producing code even when stationary or winding. A few non-linear video systems need this type of synchronization. xx xxThe two lines, in which the VITC is written. VIDEO:BNC VITC RL=AUTO WL=OFF 19 21 INS:ON POS V125 H020 VIEW=WH/BL/SM P.2 VIDEO:BNC VITC RL=AUTO WL=OFF 19 21 INS:ON POS V125 H020 VIEW=WH/BL/SM P.2 VIDEO:BNC VITC RL=AUTO WL=OFF 19 21 INS:ON POS V125 H020 VIEW=WH/BL/SM P.2
TIME BASE Reference 5 – 49 ❐The Time Code Inserter can also be activated and set up in the Device Setup dialog of Nuendo. Parameter Explanation INS:Time Code Inserter – This inserts a visible Time Code read-out in the video picture. The entire lower line of this Page is used to control the Inserter. INS: OFFInserter off. INS: ONInserter active – In the “Playspeed” range the displays. shows the Time Code, during Stop or FF/Rew the last valid Time Code value is shown. INS: +INThe Inserter shows the input Time Code, as soon as this is readable. INS: +TC9If no LTC/VITC is read, the Inserter display is generated from 9-pin Time Code. On suitable (9-pin) Video machines this works in all ma- chine states even during rewind. POS VVertical Position. POS HHorizontal Position. Using V and H you can freely move the inserted Time Code within the picture. VIEW=Time Code Display type. VIEW= WH/BLWhite character/black background. VIEW=BL/WHBlack character/white background. VIEW=WH/BGWhite character/no background. VIEW=BL/BGBlack character/no background. VIEW=xx/xx/SMSmall burn-in window. VIEW=xx/xx/LGLarge burn-in window. VIDEO:BNC VITC RL=AUTO WL=OFF 19 21 INS:ON POS V119 H014 VIEW=WH/BL/SM P.2
TIME BASE 5 – 50 Reference Varispeed, Word Clock 2, 3, 4 and AES/EBU Output – Display page P.3 Setting the Word Clock2 Output: • The outputs WS2, 3, 4 always follow the basic Clock set on the Time Base Dis- play page P.1. That means, if SR is set to 44.10 (or 22.05, 88.20, 176.4) on P.1, the outputs WS2, WS3 and WS4 will output 44.1, 88.1 or 176.4 kHz. If you have set SR to 48.00 on P.1 (or to 16.00, 24.00, 32.00,64.00, 96.00, 128.0, 192.0), WS2, WS3 and WS4 will deliver 48.00 kHz and the respective multiples. Parameter Explanation WS2: 44.10 (48.00)44,10 kHz (48 kHz) – Corresponds to the basic Clock set on the Time Base Display page P.1. 88.20 (96.00)88,20 kHz (96 kHz) – Doubled basic Clock. 176.4 (192.0)176,0 kHz (192 kHz) – Four times the basic Clock. WS3:Same as for WS2. WS4:Same as for WS2. WS2:44.10 WS3:44.10 WS4:44.10 VARSP=OFF %=+00.00 Dout:AES/EBU P.3