Tascam Digital Multitrack Recorder DA-98 Owners Manual
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Section 4 – Connections 4-2 – 1.00 – 06/97 how to use the DA-98 with timecode, see 10, “Operations related to timecode”. The two XLR timecode connectors [37] carry bal- anced signals with the following polarity: However, unbalanced signals may be used, with only pins 1 and 2 connected. The TIMECODE OUT connector either transmits internally-generated timecode or re-shaped or re- generated timecode echoed from the TIMECODE IN connector. 4.2.2 Video connections This pair of BNC connectors [38] is used to pro- vide video frame reference clocking when the DA-98 is used with video equipment. The front panel CLOCK switch [30] is used to change between clock sources, and should be set to VIDEO when synchronizing to video sync. Connect the VIDEO IN connector of the DA-98 to the VIDEO OUT of a video unit. This signal should be a 1 Vp-p composite signal. If other equipment (such as other DTRS units) also need the video frame reference clock, the sig- nal received at the VIDEO IN is echoed at the VIDEO THRU connector. If the DA-98 is the last unit in the chain of video equipment, there is no need to terminate it, as this circuit is self-terminating. For details of how the DA-98 can be synchronized to video frame information, see 11.1.1, “Video clocking”. 4.2.3 Word clock connections This set of BNC connectors [39] is used to syn- chronize the DA-98 to other digital audio devices. The front panel CLOCK switch (page 2-3) is used to change between clock sources, and should be set to WORD when synchronizing to an external word clock. The IN jack should be connected to the WORD SYNC OUT of the digital audio device from which the DA-98 is to receive the synchronization clock. Note the difference between the OUT and the THRU connectors. OUT is used to carry word clock signals generated by the DA-98, and THRU is used to echo the signals received at IN. If the DA-98 is the last unit in the chain of video equipment, there is no need to terminate it, as this circuit is self-terminating. Also note that if the DA-98 is connected to other DTRS units, the WORD SYNC jacks do not need to be connected between the DTRS units. 4.3 Control connections 4.3.1 RS-422 connector This connector is used to connect the DA-98 to other controllers or editors which will control the DA-98 using the Sony P2 protocol, or a bus proto- col, such as that used by the TASCAM ES-61. If you are in doubt about the compatibility of such a device, please consult TASCAM or your TAS- CAM dealer, who will be able to advise you. The DA-98 can emulate (through software control accessed through menu 6) a number of devices for compatibility with almost any controller. See 11.1.2, “Emulation” for details. Full details of control using this connector are given in 11.1, “Use with 9-pin external control”. 4.3.2 MIDI connectors (IN , OUT and THRU) These standard 5-pin DIN MIDI connectors [41] are used to carry MIDI Time Code (MTC) and MIDI Machine Control (MMC) information Pin # Connection 1 Ground 2Hot 3Cold IN (balanced) OUT (balanced) Level 0.5 Vp-p to 10.0Vp-p2Vp-p Impedance > 10k W< 100 W
Section 4 – Connections 06/97 – 1.00 – 4-3 between the DA-98 and other suitably-equipped units (for instance, sequencers capable of being synchronized to MTC, and capable of transmitting MMC commands). The MIDI functions are accessed through menu group 7. See 10.4.5, “Using MIDI Time Code (MTC)” and 11.3.1, “MMC commands and the DA-98” for full details. Note the difference between MIDI OUT and MIDI THRU . The OUT connector outputs signals which originate from the DA-98. The THRU connector echoes messages received at the IN. 4.3.3 Parallel control Parallel control by and of the DA-98 is performed through the CONTROL I/O port [42]. See 15.1.6, “CONTROL I/O connector pinout” for details of how to connect other equipment to this port. 4.4 Connection to other TASCAM units By a “TASCAM unit”, we mean another DA-98, a DA-88 or a DA-38 unit, or an optional remote control unit, which may also be connected in a “chain” with multiple DTRS units. 4.4.1 Multiple DTRS units Use a TASCAM PW-88S cable when connecting other units to the REMOTE/SYNC IN connector [43] or to the SYNC OUT connector ([44]). This synchronization cable will carry the internal synchronization code and the transport signals, etc. There is no need to make any other connec- tions, apart from the audio connections (either digital or analog). If more than one DTRS unit is to be used, the first unit in the chain must have its Machine ID set to “1”, (“0” in the case of DA-88s) and subsequent units must have their IDs set in order with no gaps in the numbering sequence. Note that the diagram below does not show any audio connections. ÁoÁtÁrÁgÁoÁtÁrÁgÁoÁtÁrÁg Machine ID 1 (master)Machine ID 2 (slave 1)Machine ID 3 (slave 2) Termination plug PW-88S PW-88S See 9.2.2, “Setting machine ID” for details of set- ting the Machine ID using menu group 3. 4.4.2 “Indirect” word sync As mentioned earlier, there is usually no need to use a word clock when connecting DTRS units together. There is, however, an occasion when it is necessary to carry external word sync between DTRS units. This is when a slave DTRS unit is recording digi- tally from another digital audio device: Though the slave will receive its word clock from the master unit, the master itself must receive its word clock from the other digital audio device. In this case, the master unit will have its clock source set to WORD, and the slave will receive its clock from the master unit through the SYNC IN [43]. 4.4.3 Meter unit (MU-8824) The optional MU-8824 external meter bridge unit can be connected using a PW-88M cable from the METER UNIT connector [46]. You do not need to make any settings on the DA-98 when connecting the meter unit. WARNINGS The last unit in the chain must be terminated (a TAS- CAM termination plug must be plugged into the SYNC OUT of the last machine in the chain. Once again, only use TASCAM cables for connection of equipment to and from the DA-98. ÁoÁtÁrÁgÁoÁtÁrÁg Machine ID 1 (master, but CLOCK set to WORD)Machine ID 2 (slave 1) Termination plug PW-88S IF-88SD TDIF-1 digital audio Digital SDIF-2 device SDIF-2 digital audio Word clock signal
Section 5 – Menu operations 06/97 – 1.00 – 5-1 5 – Menu operations Read this section to understand the basic princi- ples of menu operation. This will help you find your way round the DA-98’s functions easily and quickly. 5.1 The menus The DA-98 has 12 menu groups, labelled from 0 through 9, and E and F. These are referred to in this manual as “menu group 0”, menu group E”, etc. The menu which is used to select these 12 menus is called the “top” menu, and looks like this The bottom row of the display is used as a quick reference to remind you of the currently-set value or the contents of the menu group. 5.1.1 Navigation around the menu system The cursor keys [25] are used to navigate round the screen. In this manual, we use the following terms for these keys: Notice that in the top menu, as you move the cur- sor between menus, the bottom line will change, reflecting the contents of the menu. 5.1.2 Using the ENTER key From the top menu, when the cursor is beside the desired menu group, press ENTER [25] to enter that menu group. The screen will change, and the choices within that group will be shown. These are the choices within menu 0: Use the cursor keys to navigate between menu items within the group. The bottom line of the dis- play will change to show the currently-set values for the parameter beside the cursor. When the cursor is beside the desired parameter, press the ENTER key. You can now change the val- ues of that parameter. 5.1.3 The ESCAPE key The ESCAPE key is used to move up through the menu hierarchy (from menu screens to sub-menus to the top menu). It is therefore used if you enter the wrong menu by mistake. For a full description of the menu tree, see 12, “Menu and parameter reference”. • There is also an alphabetical index of menu functions and items on page 12-8. 5.1.4 Editing values When a parameter has been selected for editing, the function of the cursor keys is changed. If there is only one parameter, the LEFT and RIGHT keys are not used, and the UP and DOWN keys are used to change the value of the parameter. If the parameter is a number, the UP key increases the value and the DOWN key decreases the value. If there is more than one parameter or there are “sub-values” to the parameter, such as in the fol- lowing example (menu group 8), the functions are a little changed: Here, the internal timecode generator start time can be set. Obviously, we could edit the “frames” Select Menu Group 01234567 89----EF Dly/Tr.Cp/Vari/Loct CURSOR keyTerm used in text UP key DOWN key LEFT key RIGHT key Delay Memo 1 Trk Copy Memo 2 Vari Spd Loc Pre 1 0000 Sample Gen Start Fs shift Gen Mod TcRec Src 01:33:12:17 30NDF
Section 5 – Menu operations 5-2 – 1.00 – 06/97 field and keep pressing the UP key, but one hour would be 30 x 60 x 60 = 10,800 key presses! To avoid this,, the LEFT and RIGHT keys move the cursor between the “fields”; in this case, hours, minutes, seconds and frames. Regardless of whether one value or several sub- values have been edited, the changes to the values are made immediately. The cursor keys can then be used for navigation again. In most time-based menus, when the “frames” field is being edited, the value can be changed from 00 to the number of frames in 1 second (the exact number varies between settings) and back to 00. However, if the cursor is moved to an invisible “field” to the right of the frames field, increment- ing the value of the frames field above the number of frames in a second will increment the seconds field. As an example: 1) The menu screen shows: “ 00:01:43:2 9” when the frame rate is 30fps. 2) Press UP. 3) The menu screen shows: “ 00:01:43:0 0”. However: 1) The menu screen shows “ 00:01:43:29_”. 2) Press UP. 3) The menu screen shows: “ 00:01:44:00_”. 5.1.5 Resetting a menu value Sometimes it is necessary to reset a menu value to a default value. To do this quickly, hold down the UP key and press the DOWN key (or hold down the DOWN key and press the UP key). If the menu value is a time value in hh:mm:ss:ff format, all the fields will be reset to zero. If there is more than one independent field in a menu screen, use the cursor to point to the value that you want to reset to zero. 5.1.6 Changing menu values fast Sometimes it is useful to be able to change a value fast (for instance, time values such as minutes and seconds). To do this, hold down the UP or DOWN key and press the ENTER key. The values will change faster as long as the ENTER key is held down. 5.1.7 Blanking the screen display There are times when you may want to blank the backlit screen display (for instance, the light may be a visual distraction, or you may want to dis- courage tampering fingers). 1) Press the ENTER key, and while holding it down, press ESCAPE. You can also hold down the ESCAPE key and press ENTER. 2) The screen will blank, and the back light will go out. 3) To restore the screen display, press any of the following: ENTER, ESCAPE, or any of the CURSOR keys. The screen will be relit, and show the top menu. 5.2 Function key modes These keys are often used to jump to frequently- used menus (see 5.3, “Assigning menus to func- tion keys”), but their function can be changed, as described here: 1) Press and hold down the SHIFT key [24], and while holding it down, press the MEMO 2 key [14] to enter the Function Key Mode menu. As an alternative to the method above, you can go to menu group 7, move the cursor to Funct- Mode and press ENTER. NOTE This can be used as an alternative way of returning to the top menu when you are inside the menu hierarchy
Section 5 – Menu operations 06/97 – 1.00 – 5-3 2) This menu gives you three choices, Menu, Locate Positionand10 Key: Menu uses the function keys as a quick way of jumping around the menu system (see 5.3, “Assigning menus to function keys”). Locate Position assigns the ten func- tion keys to location memories (see 8.2.1, “Storing a function key location memory”) 10 Key allows you to use the function keys as a numeric keypad for direct entry of numerical data (see 5.2.2, “Using the function keys as number keys”). 3) Select the option with the UP and DOWN keys. 5.2.1 The SHIFT key and function keys Usually, the 10 function keys and the LOC 2/PRE- SET and MEMO 2/ +/– keys perform the duties as marked on the top of their labels (e.g. key [19] usually works as the AU TO M O N key). To use the keys as function keys (whether location keys, preset menu keys or as number keys), press the SHIFT key. The SHIFT indicator will start to flash. While it is flashing, these keys are used as described on the bottom row of their labels (e.g. key [19] now becomes function key 7 ( F 7)). Press the SHIFT key again to stop the indicator flashing and return the keys to their original functions. 5.2.2 Using the function keys as number keys When the Function Key Modeparameter has been set to 10 Key (see above), you can use the function keys as number keys for direct entry of numerical data. The function key number is used to enter the digit ( F 1 enters a 1, F 2 enters a 2, etc.) except for F 10, which enters a 0. When you have entered the value using the func- tion keys as number keys, you should press the PRESET key ([23] to confirm the value you have just entered. The following is a step-by-step guide to entering a value (1 minute and 5 seconds) into the Locate Pre-roll parameter (see 8.1.3, “Setting the location pre-roll time”). 1) Set the function key mode to 10 Key, as described above (page 5-2). 2) Go to menu group 0, move the cursor to Loc Pre , and press ENTER: 3) Press the SHIFT key [24]. The indicator will start to flash. 4) Press the F 1 key [9]: The bottom line of the display will start to blink, showing that you are entering numerical data. Notice that the number is entered from the right of the fields, even though the cursor position is not at the right of the field. Function Key Mode Select Menu NOTE When you change the function of the “soft” keys between menu and location functions, the values assigned to the other function are not lost, and will be restored when you next change the function of the soft keys. Locate Pre-roll 00min00sec Locate Pre-roll 00min01sec
Section 5 – Menu operations 5-4 – 1.00 – 06/97 5) Press the F 10 key [22] (to enter a 0): 6) Press the F 5 key [13]: 7) The numbers for this value have now been entered, but the value itself has not. Press the LOC 2 (PRESET) key [23] to enter the value. The bottom line of the display will stop blinking. 8) You can use the UP and DOWN keys to adjust the value you have just entered. 9) Press SHIFT again to restore the function keys to their “non-function” values. You can use the function keys as number keys in almost any menu where direct numerical input is possible. You cannot use these keys as number keys when there are only two choices (even if they are numerical). An example of such a menu is the Rechase Mode menu (page 10-13), where the two options for the Window value are 1 second and 2 seconds. This parameter should be set using the UP and DOWN keys, not the number keys. 5.3 Assigning menus to function keys It is quite likely that you will find yourself using a few of the same menu functions many times (for instance, manual adjustment of punch points) and many of the menu functions only rarely (for instance, whether the DA-98 is a master or a slave unit). Some of the keys below the tape counter ([9] through [13], and [18] through [22]) can be used as “soft keys”, providing instant access to the menu screens you use most often. 5.3.1 To assign a menu screen to a key 1) Set the function key mode to Menu as described in 5.2, “Function key modes” 2) Use the cursor and ENTER keys to get to the menu function you want to assign to a key. 3) Press the SHIFT key [24] (the indicator will flash). 4) Press the PRESET key [23]. The following will appear on the display. 5) Press the key ( F 1 through F 10) to which you want to assign the menu screen. This will assign the menu screen to the key and the SHIFT indicator will go out. 5.3.2 Recalling an assigned menu function 1) Press the SHIFT [24] key (the indicator will flash). 2) Press the F key (1 through 10) which has been assigned to the menu function you want to recall. The menu screen will be recalled, and the SHIFT indicator will go out. Locate Pre-roll 00min10sec Locate Pre-roll 01min05sec NOTE Some parameters (e.g. offsets) can take either positive or negative values. To change the sign of the value, use the MEMO 2 (+/–) key [14] to toggle between posi- tive and negative values. Function Preset Push Function Key
Section 6 – Basic operations 06/97 – 1.00 – 6-1 6 – Basic operations This section explains some of the basic operations using the DA-98. Section 8, “Advanced opera- tions” describes more advanced operations. Most operations on a DA-98 are similar to those on a traditional analog multitrack recorder, but we suggest that you read this section and the next to learn about the features of the DA-98. 6.1 Formatting a tape Before you use a tape in the DA-98, you must first format it. This marks internal synchronization pat- terns for the servo to follow on subsequent passes through the tape as well as the subcode data (ABS). No audio data is normally recorded during a formatting operation (but see below). While formatting is proceeding, you cannot per- form any other transport operation except stop- ping the tape. You cannot change the sampling rate while for- matting is in progress. 1) Switch on the DA-98 and load a tape into the tape loading slot [3]. As the tape is loaded and threaded, the tape counters will show . For details of tapes that you can use in the DA-98, see 1.5, “Recommended tapes”. 2) Press REW [32] to take the tape to the beginning. When the beginning of the tape is reached, the tape counter will show (“beginning of tape”). 3) Press the FORMAT/Fs switch [6]. The FORMAT indicator will start blinking. Press the FORMAT/ Fs switch again within 5 seconds. The FORMAT indicator will then light steadily. If you do not press the FORMAT/Fs switch twice within 5 seconds, the indicator will go out. This is a feature designed to stop you formatting a tape accidentally. 4) Now use the FORMAT/Fs switch to select the sampling frequency (either 44.1kHz or 48kHz). The sampling frequency that you select depends on the eventual use for the recording. For audio work, selecting 44.1kHz will allow you to produce CD master tapes with no frequency conversion. 5) To start formatting the tape, hold down the RECORD key [36] and press the PLAY key [35]. 6) The tape will format to the end, and then rewind automatically, stopping at the position. You are now able to use the tape for recording. It is possible to format tapes on a number of DTRS units simultaneously. For details, see 9.4.1, “Synchronized formatting”. 6.1.1 Aborting the format process To abort the process before formatting actually takes place (i.e. you have pressed the FORMAT/Fs switch twice in error), press the CLEAR key [11]. The FORMAT indicator will go out. As explained earlier, the only transport operation you can perform once formatting has started is to stop the tape. NOTE If you do press the FORMAT/Fs switch twice so that the indicator lights steadily and you then change your mind about formatting the tape, you can use the CLEAR key [11] to cancel the operation. NOTE If a digital signal is received at the DIGITAL I/O jack [45] as selected and shown by the DIGITAL IN switch and indicator [15], the DA-98’s recording and playback sampling frequency is automatically determined by the sampling frequency of the input signal and you cannot change it. NOTE The tape counter may show a negative ABS time for a short while at the start of the formatting process. While it is displaying a negative value, no audio recording can take place.
Section 6 – Basic operations 6-2 – 1.00 – 06/97 However, we do not recommend interrupting the formatting process, but suggest that you let the tape run to the end. If you interrupt the formatting (or the formatting is interrupted by a power cut or events beyond your control), rewind the tape and start the format from the beginning of the tape again. 6.1.2 Recording while formatting If you have armed any tracks (you have pressed its REC FUNCTION switch [28] and the indicator is flashing), any audio signal routed to that track will be recorded while formatting is in progress. 6.2 Recording the first tracks There are a number of different ways of recording the first tracks. However, all follow the same basic principles. 6.3 Preparing to record 1) If you have not already loaded a formatted blank tape, do so now. 2) Make sure that varispeed is turned off (check the VARI SPEED indicator [2] and see 8.5.2, “Resetting the speed to standard” if necessary).3) If you are recording from a digital source, press the DIGITAL IN switch [15]. The indicator will light. 4) Select the input which will be routed to each track on which you will be recording. This may involve the use of an external patch bay (analog), but the DA-98 also incorporates a “vir- tual patch bay” which can be used for signal rout- ing; both digital and analog. This is accessed through the Track Copy function (see 8.11.1, “Track Copy (channel-to-track routing)”). With a digital recorder such as the DA-98, track crosstalk is almost negligible (better than 90dB at 1kHz). For this reason, you do not have to worry so much about the constraints of choosing physical track locations as you do with analog recordings. If you need to copy a track to another track later in the recording process, remember that track copy- ing in the digital domain will add no noise or dis- tortion. A digital copy is a “clone” of the original, and no loss of quality is incurred. 6.3.1 Write-protecting cassettes If you attempt to record on a cassette where the write-protect tab has been closed, an error mes- sage will appear on the screen as you press the RECORD key. Recording is, of course, not possi- ble on a write-protected cassette. Hi8 cassette write tabs work in the opposite man- ner to DAT cassettes, and “closed” means “write- protect”. If the tape is write-protected, the REC INHI indica- tor to the left of the tape counter will be lit. Eject the tape, open the write-protect tab, replace the cassette, and try again. 6.3.2 Recording the basic tracks (i) 1) Arm the tracks on which you wish to record. Press the REC FUNCTION key of these tracks; the indicator will start flashing. NOTES • If you have recorded and formatted part of a tape, and you wish to continue formatting and recording on the rest of the tape (“assembly”), you should rewind to a pre-formatted, blank section of the tape and resume for- matting and recording from there. • Recording and formatting will continue at the sampling frequency used on the first part of the tape. • Avoid re-starting recording and formatting from an unformatted section of the tape. NOTES • When using a newly-formatted tape, we suggest that you record a blank “leader” about 30 seconds long, starting from the beginning of the tape, to avoid dropout. Leave a similar recorded blank “trailer” at the end of the recording. You can use the Rec Mute function as a con- venient way of recording silence (see 8.12, “REC MUTE (recording silence)”). • If the tape counter shows a negative value, you cannot record on the tape at that position. NOTE Sony Hi8 cassettes (and those from some other manu- facturers) have the words “SAVE” (write-protected) and “REC” (write-enabled) molded into the cassette shell by the protection tab.
Section 6 – Basic operations 06/97 – 1.00 – 6-3 2) Adjust the input signal levels so that the track meters read high, but the OVER segment does not light. 3) Hold down the RECORD key, and press the PLAY key. The tape will start moving and recording will start. The REC FUNCTION indicators of all tracks will light steadily. When you start recording, the point at which recording starts is automatically stored into mem- ory for punch-in purposes. 4) To stop recording and stop the tape, press the STOP key. You can also press the PLAY key, which will continue the tape movement, but stop recording. 6.3.3 Recording the basic tracks (ii) This is an alternative method of recording basic tracks on a blank, formatted tape. 1) Arm the tracks and adjust the levels as described in [1] and [2] above (6.3.2, “Recording the basic tracks (i)”). The REC FUNCTION indicators of all armed tracks will flash. 2) Press the PLAY key. The tape will start moving. 3) When you reach the point at which you want to start recording, press the RECORD key. The REC FUNCTION indicators of all armed tracks will light steadily. The point at which recording starts is automati- cally stored into memory for punch-in purposes. 4) Stop recording as described above. 6.3.4 Replaying the first tracks When you have positioned the tape at the begin- ning of the recording you have just made (or at the pre-roll point), you can start playing back the tape.1) Turn off the RECORD FUNCTION switch of the track you have just recorded. We suggest turning off the RECORD FUNCTION. This will prevent you from accidentally hitting the RECORD key and going into record mode, over- writing what you have already recorded. 2) Make sure that the INPUT MONITOR of the track you have just recorded is turned off (see 7.1.1, “ALL INPUT [18] and INPUT MONITOR [29]”). 3) Rewind the tape to the point that you started recording and press PLAY. 6.4 Overdubbing Overdubbing subsequent tracks is carried out in a very similar way to recording the first tracks. If you are unsure about the difference between monitoring modes as implemented on the DA-98, now is a good time to read the section 7, “Moni- toring modes”. Obviously you will want to record while you lis- ten to the off-tape signals from previously- recorded tracks and the input source on tracks where recording is taking place. Note, however, that the use of confidence mode when overdubbing (see 7.2, “Confidence mode”) is not recommended, as the off-tape replay signals will be delayed, making it impossible to provide accurate cues. 6.5 Track bouncing Though the DA-98 provides a method of copying tracks digitally (see 8.11.1, “Track Copy (channel- to-track routing)”), there is no way of combining tracks within the DA-98. If you need to combine tracks, this must be done through an external console, routing all tracks to be combined through an output group, and routing that group to the appropriate track input. 6.6 Punch-in and punch-out There are a number of ways in which the DA-98 can be used to perform reliable punch-in and punch-outs automatically. Punch points can be set NOTE Use the reference level you have chosen (see 8.7, “Ref- erence levels”) to be your “nominal” level.