2.4 Track controls.. 15

4.2 The SHIFT key..20
4.2.1 Shifted keys..20 4.2.2 Shift mode..20
4.3 Menus and sub-menus.21
4.3.1 Exiting menu mode..21 4.3.2 Sub-menus...21 4.3.3 Adjusting parameter values.21 4.3.4 Resetting parameters to default values..21 4.3.5 Left and right keys..22 4.3.6 Sub-frame values.22 4.3.7 Using the DATA/LEVEL knob to set values..22
R REC FUNCTION keys and indicators. 15 S Peak meters.. 15
4.4 SYSTEM menu..23 4.5 AUDIO1 menu.23 4.6 AUDIO2 menu.24 4.7 TC menu..24

4 TASCAM DA-78HR

4.8 TC chase menu..25 4.9 TC generator menu..25 4.10 MIDI menu..25 4.11 Maintenance menu.26 4.12 Dedicated keys..26
7.1.1 Setting MEMO 1 and MEMO 2 on the fly..38 7.1.2 Checking, editing and manually entering MEMO 1 and MEMO 2..38 7.1.3 Setting the location pre-roll time..38 7.1.4 Moving to MEMO 1 and MEMO 2.38 7.1.5 Location and playback..38

5 - Basic operations

5.1 Formatting a tape..27
5.1.1 Selecting a word clock source. 27 5.1.2 Formatting... 27 5.1.3 Aborting the format process. 28 5.1.4 Recording while formatting. 28

7.2 Repeat function..39

7.2.1 To start repeat play..39
7.3 Track delay...39 7.4 Sub-mixer..40
7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 Entering mixdown mode.40 Setting the master level..40 Leaving edit/pan setting mode.40 Setting levels and pan positions.40 Setting the sub-mixer input sources41
5.2 Recording the first tracks..28
5.2.1 Preparing to record.. 28 5.2.2 Selecting a clock source. 28 5.2.3 Write-protecting cassettes.. 28 5.2.4 Recording the first tracks (i). 29 5.2.5 Recording the basic tracks (ii). 29 5.2.6 Replaying the first tracks.. 29
7.5 Crossfade times..41 7.6 Vari speed (pitch control)..41
7.6.1 To set a non-standard speed.41

5.3 Input selection..29

5.3.1 Digital input selection.. 29 5.3.2 Input patchbay routing. 30 5.3.3 Track bouncing.. 30 5.3.4 Returning to ALL ANALOG setting. 31
7.7 Shuttle operations..42
7.7.1 Shuttle monitoring..42 7.7.2 Shuttle muting..42

7.8 Meter modes..42

7.8.1 Peak hold time..42 7.8.2 Meter ballistics..42
5.4 More on digital recording..31
5.4.1 Sampling frequency and word length.. 31 5.4.2 Selecting input word length. 31

7.9 Sine oscillator.43

7.9.1 Recording the oscillator.43
5.5 Overdubbing..31 5.6 Punch-in and punch-out.32
5.6.1 Automatic punch point setting. 32 5.6.2 Setting punch points on the fly. 32 5.6.3 Setting punch points using the front panel.. 33 5.6.4 Editing the pre-roll and post-roll times.. 33 5.6.5 Rehearsing the punch-in. 34 5.6.6 Interrupting a rehearsal or punch recording.. 34 5.6.7 Recording the punch-in.. 34 5.6.8 Replaying the punched material. 34 5.6.9 Exiting punch-in mode. 35

Avoid subjecting the DA-78HR to jolts, sudden shocks, etc.

I M O TA T P R N

If you have to return the unit for service or repair, use the original packing materials if possible. If the unit is to be transported to a recording location, etc., use a suitable transport case with sufficient shock protection.
1.4.7 Powering the DA-78HR off and on
When powering the DA-78HR off and on, always wait for five seconds or more between powering the unit off and turning it on again. If the power is switched too quickly, the precision power supply may not provide the power of the proper quality required for recording. If power is inadvertently switched off an on quickly, and the power supply does not respond properly, switch the unit off again, wait for five or more seconds, and switch it on again.
TASCAM does not accept responsibility for damage resulting from neglect or accident.
1.4.4 Installing the DA-78HR
The DA-78HR may be installed in a standard 19 rack, occupying 3U of space. Since the DA-78HR is quite heavy (around between 7 and 8 kg about 16 lb.), your rack should be strong and stable to take the weight of the DA-78HR. The DA-78HR should be mounted with the front panel vertical.

1.4.8 Condensation

If you use the DA-78HR in a warm place after moving it from a cold place (for instance, recording on location), or if there has been a sudden change in temperature, condensation may occur within the tape mechanism, with a risk of possible damage to the unit. If condensation does occur, you will not be able to operate the DA-78HR controls, and you will see the following message on the display E DEW ( E DEW ). If you see the above message, leave the DA-78HR switched on for one or two hours, then switch it off and on again before starting recording. If you are going to use the DA-78HR in a location where you think condensation is likely to occur, move the DA-78HR into the warmer location about one or two hours before recording is due to start, and leave it switched on. Turn the DA-78HR off and then on again before starting recording.
1.4.5 Electrical considerations
Make sure that your local power supply matches the voltage requirements marked on the rear panel of the DA-78HR. If you are in any doubt concerning the local power supply, consult an electrician. Avoid extreme voltage fluctuations. If necessary, use an input voltage regulator to smooth the power supplied to the DA-78HR. Do not open the unit to clean inside, or to perform any internal adjustments. You should not attempt any cleaning or other maintenance procedures which are not described in this manual. You may need to clean the heads occasionally. The procedure for doing this, and for checking tape error rates, etc., is given in 11.1, Head and transport cleaning.

When a menu item or a value is given in this manual, we show it in the following way:

Pk. Hld (PK HLD ).

Notice also that because there are not many character positions on the time counter, the English menu titles, etc. may be abbreviated sometimes.

4.1.1 Peak meters

In addition to the time display, the bargraph meters are sometimes used to show a value. For example, in the stereo sub-mixer settings, the meters act as a bar-

20 TASCAM DA-78HR

4.3 Menus and sub-menus
When the unit is in shift mode, the REPEAT ( MENU) key is the gateway to the menus. This key is used to show the top level groups of the menu tree:
SYSTEM-AUDIO. 1-AUDIO. 2-TC-TC. CHS-SYSTEM-- Basic system parameters and functions AUDIO1-- Parameters affecting the audio functions of the DA-78HR AUDIO2-- Additional audio features TC-Timecode parameters (generator, display, etc.)

4.3.1 Exiting menu mode

To exit menu mode, either: turn off the shift mode (press the SHIFT key so that its indicator is no longer flashing) or enter another shifted function (except for the shifted MENU or SUB MENU functions)

4.3.2 Sub-menus

When a menu is displayed, pressing the shifted CHASE key (SUB MENU ) brings up the sub-menu items associated with that particular top-level menu group. There are two different ways of displaying sub-menu items: one is that the name of the parameter to be adjusted, and the current value of the parameter are displayed together. the other way is to that the name of the parameter is displayed for one second, and the display then changes to the current value of the parameter (this is when the parameter name and/or the value are too long to be displayed together). Pressing the SUB MENU key cycles through the list of sub-menu items in a top-level menu group (the list is regarded as circular). Pressing and holding the SHIFT key and pressing the SUB MENU key cycles through the sub-menu items in the reverse order.
TC.CHS-- Parameters affecting the timecode chase mode of the DA78HR TCG.REC--Timecode generator recording parameters) MIDI-Parameters concerned with the MIDI functions of the DA-78HR

TCG. REC-MIDI-MAINTN--

MAINTN-- Maintenance, etc. parameters, concerned with the DA-78HR
When the MENU key is pressed, one of this group names is displayed on the screen and the unit enters menu mode. When the MENU key is pressed again, the next menu group name in this list above is shown (the list is circular, i.e. the first group name follows the last in the list). Pressing and holding down the SHIFT key and pressing the MENU key goes to the previous menu group, following the order described above. Once again, the list is regarded as circular.

Crossfade time for punch, etc.

Out. Patch

9.3, Selecting the frame mode, 9.4.1, Showing input timecode, 9.5.8, Checking the frame mode of striped timecode
(output patching) Output patchbay

out. bit.

Normal*

(normal or as set)

7.12.2, Output patchbay
System frame mode and external/tape frame rate display

(TC display)

16, 24*

TAPE* (off-tape), EXT

(external), diff (difference)
9.4.1, Showing input timecode

(output word length)

7.12.1, Output word length

Timecode display source

In. TC. TMG
(word length of digital output)

ShTL. MoN.

(input TC timing) 6.3, Shuttle monitor

ANALOG*, DIGITAL

9.4.2, Timecode input timing

(shuttle monitor)

(off)*, 1 (on)
Incoming timecode reference

OUT. TC. TMG

Shuttle monitor function

ShTL. MuT.

(output TC timing) 6.4, Shuttle muting

ANALOG* (ana-

log), DIGITAL (digital)
9.4.6, Timecode output timing

(shuttle mute)

Outgoing timecode reference

OUT. TC. SRC

Shuttle mute function
(oscillator) Line-up oscillator

OFF*, 440, 1k

7.9, Sine oscillator

(output TC source)

TAPE tc* (from tape), REGEN (regenerated), RESHAPE

9.4.3, Timecode output

(reshaped) Source of outgoing timecode

FAST lTC

(fast LTC)
5 FRm * (5 frames), LEAP (leap), OFF
9.4.5, Fast linear timecode (LTC) output

Fast LTC output mode

TASCAM DA-78HR 24

4.8 TC chase menu

The following parameters are used to control the DA-78HR operations when chasing to an incoming timecode signal:

INDiv. REC

TC. REC. EN

0* (off), 1 (on)

9.5.2, Recording timecode using the generator

TC. CHS --

(TC recording enable)

0* (off), 1

Enabling of timecode recording
9.6.11, Individual recording while chasing timecode

STRT. Time

(TC generator) (individual recording) (on)
Time value in hh:mm:ss.ff (00:00:00.00*)
Start time for on-board generator

TCG. MODE

Enabling individual recording while chasing

RECHS. MD

(rechase mode)
RECHASE * (rechase), FREE (free)
9.6.9, Rechasing timecode

(TC generator mode)

reset* (reset), CoNT

7.1.2 Checking, editing and manually entering MEMO 1 and MEMO 2
The checking, editing, and manual entry of the Memo 1 and Memo 2 location points are all essentially the same operation. Location points can be edited and entered to frame accuracy. 1 Press the SHIFT key so that the SHIFT indicator flashes. 2 Press either the MEMO 1 or MEMO 2 key, depending on which location point is to be accessed. 3 The display briefly shows MEMO ; (MEMO x ), and then the currently-stored location memory is shown on the display. The cursor (flashing period) is at the hours field. 4 Use the v and w keys to set the hours value, and move the cursor with the SHIFTed v and w keys. For details regarding the entry of time values, including sub-frame entry, see 4.3, Menus and sub-menus.
7.1.4 Moving to MEMO 1 and MEMO 2
When you have set the location memories as described above, you simply need to press the LOC 1 or LOC 2 keys to move the tape to these location points. The tape will locate to the location memory minus the location pre-roll time, as described above.
7.1.5 Location and playback
If you press the PLAY key while the tape is locating (the PLAY key will flash), the tape will start playing when it reaches the location point.

38 TASCAM DA-78HR

If you press PLAY twice while the tape is locating, the PLAY key will light steadily, the tape will stop and playback will start immediately. If you are using the DA-78HR with a remote control unit, and you have have pressed the AUTO PLAY key on the remote control unit, replay will start automatically when the location point is reached.
If you have only set one location point, the repeat will be between 00:00:00.00 and the location point.
Pressing any transport control while repeat play is in progress will stop the replay, but will not cancel the repeat mode. To restart the repeat playback, locate to either location point, and while the tape is winding, press PLAY. Alternatively, press PLAY while the tape is before the second location point.

7.2 Repeat function

If the SHIFT and REC FUNCTION keys are used, each meter shows the record mute status of the correspondingly-numbered track, as shown here (only one segment lights to show the mute status). Press SHIFT and one of the REC FUNCTION keys (as described in 4.1.1, Peak meters) to toggle this meter mode off and on. The default at power-on is for this mode to be on.
When using the oscillator, you should turn down the monitor levels in the control room and studio to avoid damage to your ears (and the speakers).
7.9.1 Recording the oscillator
As mentioned above, the oscillator overrides all other track inputs, regardless of whether digital or analog input has been selected. Recording the oscillator test tone is therefore similar to any other recording operation.
Pressing the v and w keys together makes the default ALL OFF setting.

7.11Dither

Dither is the technique of adding a known noise to low-level signals, especially when converting from a high number of bits (for instance 24 or 20 input bits, as in the case of the DA-78HR) to a lower number

43 TASCAM DA-78HR

(for instance 16, the DA-78HRs non-HR tape word length) to improve quantization. Paradoxically, this technique of adding noise removes quantization noise and distortion at low signal levels and improves the overall distortion figures.1 Though quantization noise is reduced, there is a loss of a few dB in the signal-to-noise ratio. For this reason, the DA-78HR does not implement dither as a standard, but allows you to choose between no dither, rectangular or triangular (the shapes refer to the distribution of values in the digital noise). Rectangular gives about 3dB better signal-to-noise ratio than triangular, but there is noise modulation, which may be audible when recording and playing back low-level program sources.
1 Press the SHIFT key so that the unit is in shift mode ( SHIFT indicator is flashing). 2 Press the MENU key until the display shows Audio. 2-- ( AUDIO2--). 3 Press the SUB MENU key until the display briefly shows Out. bit. ;; ( OUT BIT xx), where xx is the current setting. 4 Use the v and w keys to change between 16 and 24 bits.
Simply changing the output word length to 24 bits will not automatically provide better sound quality, if the equipment being fed by the DA-78HR is not capable of accepting 24-bit audio.

7.12.2 Output patchbay

In addition to the integral input patchbay, the DA78HR also features a patchbay which allows tracks to be routed to different output channels. This routing is carried out in parallel to both the TDIF digital and the analog sets of outputs. The default setting is NORMAL (NORMAL), i.e. tracks are output to their correspondingly-numbered output channels. To make an output patch setting: 1 Press the SHIFT key so that the unit is in shift mode ( SHIFT indicator is flashing). 2 Press the MENU key until the display shows Audio. 2-- ( AUDIO2--). 3 Press the SUB MENU key until the display briefly shows Out. Patch ( OUT PATCH), followed by the current setting. 4 Press any of the REC FUNCTION keys to select an output channel (not a track) which will have a track assigned to it. 5 The display shows the current setting of this output channel, e.g. Ch. 1 Tr. 3 (Ch1 tr3 ) means that output channel 1 is fed by tape track 3. Use the v and w keys to change the track number.

Dither can be turned on and off while recording is taking place. However, there will probably be an audible change in the sound quality. We suggest making a test recording before a session. In this way you will be able to make an instant assessment of the effects of the different dither settings on your program material.
7.11.1 Selecting dither settings
1 Press the SHIFT key so that the SHIFT indicator is flashing, and then press the MENU key until the display shows Audio. 1-- (AUDIO1--). 2 Press the SUB MENU key until the display shows DITH. ;;; ( DITH xxx where xxx is the current setting). 3 Use the v and w to select the dither function you want (either OFF (OFF), RECT ( RECT) (rectangular) or TRI (TRI) (triangular)).
7.12Advanced output options
7.12.1 Output word length
The output word length from the TDIF-1 (and the SPDIF (COAXIAL)) outputs can be set to either 16 or 24 bits.
1. A full discussion of dither and other digital audio techniques is outside the scope of this manual. However, a good starting point for learning about this, and other aspects of digital audio, is John Watkinsons The Art of Digital Audio, pub Focal Press.

TASCAM DA-78HR 44

Pressing the v and w keys simultaneously returns the output patchbay to the normal state.
Track 8 Track 7 Track 6 Track 5 Track 4 Track 3 Track 2 Track 1
The meters display the current assignments of tracks to the output channels. In this case, each meter shows the assignment status of the correspondingly-numbered output channel (not track), as shown here. Press SHIFT and one of the REC FUNCTION keys (as described in
to another facility using the DA-78HR, and set up the other machine in exactly the same way as the original at home. Of course, there are many other uses for this facility. The settings stored on the tape do not affect the recorded audio data. To save the current settings to tape: 1 Make sure that there is a formatted tape in the recorder before you start to save the settings to tape. The tape must be stopped before you start the save operation. 2 Press the SHIFT key so that the SHIFT indicator is flashing, and press the MENU key until the display shows system-- ( SYSTEM-- ). 3 Press the SUB MENU key until the display shows SAVE. OFF ( SAVE OFF). 4 Press the v key to make the DA-78HR ready for saving the settings. The display will show READY (READY). 5 Press the v key again to actually start the save operation. The DA-78HR will automatically search to the position on the tape where the data will be saved, will write the data, and then rewind and check that the data has been correctly written. While the data is being written and checked, the display shows SAVING ( SAVING). 6 When the save operation has finished correctly, the display shows done ( DONE). The tape may now be ejected. If there is no tape inserted (or the tape has not been formatted) when the save operation is readied, the display shows no TAPE ( NO TAPE). If the tape is not stopped when the save operation is readied, the display shows not stop ( NOT STOP). If an error is encountered while saving is taking place, the display will show SAVE ERR ( SAVE ERR).

8.2.3 Master/slave settings (CHASE mode)
Each unit with an ID greater than 1 is regarded as a slave unit. 1 For each slave unit in the chain, press the SHIFT key so that the SHIFT indicator is flashing, and press the MENU key, until the counter shows SYSTEM-- ( SYSTEM--). 2 Press the SUB MENU key until the display briefly shows TIME. MODE (TIME MODE ) and then changes to show the current time mode (which is either ABSabsolute or TCtimecode). 3 If any slave unit shows TC, use the v and w keys to change this to ABS. 4 On each slave unit, press the CHASE key. The CHASE indicator will start flashing. 5 Press any of the transport controls on the master unit (machine ID 1). The slave unit(s) will synchronize and follow the transport commands of the master. When a slave unit is locked to the master unit, its CHASE indicator will light steadily. While chasing, the transport keys of the slave unit are disabled. 6 To turn off chase mode on a slave unit, press the CHASE key so that the CHASE indicator goes off.
If you change an offset value (timecode or ABS), any punch points, location memories, etc. will be invalidated. For example, if you change the offset to 00:30:00.00 (30 minutes) from 00:00:00.00 (no offset), a punch point which was previously at 00:33:00.00 (33 minutes into the tape) will still have the same value (00:33:00.00), but will now be only 3 minutes into the tape.
8.3.2 Cancelling machine offset
To cancel machine offset, simply set the offset value to 00:00:00.00. 1 Enter the offset setting, as described above.

48 TASCAM DA-78HR

2 Press and hold down the v key and press the w key to reset the value. Machine offset will now be cancelled and the
OFFSET indicator will go out.
at the correct time relative to the dialog and reference tracks.
Copy of video worktape audio tracks
8.3.3 Setting machine offset on the fly
As well as entering an absolute number, it is also possible to enter a number on the fly as the tapes are playing. 1 Locate the two tapes (master and slave) so that they have the right offset, either by playing the tapes and pausing them or carry out the next operation while one or both tapes is being played back. 2 On the slave unit to be offset, press and hold the SHIFT key, and press the AUTO IN/OUT (OFFSET) key at the correct offset time to capture and store the offset. The display will briefly show AT. OFFSET ( AT OFFSET), and the current difference between the master and slave tapes will be stored as an offset.

00:57:00:00

0 1:00:00:0 0

01:02:21:18

Start of tape Connection from SYNC OUT to SYNC IN

Start of video

Music entry

Backing music

00:57 :00:00

01:00:00:00

Start of tape
Start of music (tape is cued here)
Press the v or w key at this point. Offset will be set to 00:02:1 Locate the slave tape with the backing music to the start of the music. The shuttle mode is useful here (see 7.7, Shuttle operations). 2 Rewind the master to a little before you want the music to enter. 3 Start playing the master DA-78HR. 4 When the music entry point is reached, press and hold the SHIFT key and press the AUTO IN/ OUT key to capture the offset point. 5 Stop the master, and set the slave into CHASE mode (8.2.3, Master/slave settings (CHASE mode)). 6 Rewind the master to a little before the music entry and start playing. The slave machine should now follow the transport movements of the master, with the appropriate offset, so that the music enters at the right point.
The value entered in this way can be edited later using the technique described above.
You cannot determine the offset from an unformatted tape, or if either tape is currently displaying a negative ABS value.
8.3.4 An example of setting offsets
A practical example of setting offsets is given here. The master DA-78HR contains the tape with the dialog and reference tracks from the video worktape. Another DA-78HR (the slave) has a tape with some tracks containing video backing music. It is necessary to produce an offset between the two so that when the master is played, the music tracks will start

TASCAM DA-78HR 49

8.4 Digital dubbing

S O UR CE M AS TE R

5 Select all digital as the input source on the target slave (5.3, Input selection). 6 Put the target slave machine into CHASE mode (8.2, Machine ID and master/slave settings). 7 Locate the master tape to a point before the material you want to duplicate.
P W - 88 S (s y n c c a b le )
P W - 88D o r P W - 88 DL ( d ig it a l I/O c a bl e )
The target slave will also locate since it is in chase mode. 8 Arm all tracks ( REC FUNCTION) on the target slave machine. 9 Make sure that all REC FUNCTION switches on the source master are turned OFF.

Te r m in a to r p lu g

TA R G E T S LAV E
When you copy tapes between DTRS units in the digital domain, there is no loss of quality. A worktape or copy is therefore indistinguishable from the original. Additionally, the DA-78HR uses low-cost media (Hi8 video cassettes), which makes it easy to back up important projects.
If any REC FUNCTION switches on the source master are turned on, you will erase your master tape! You may want to use the tapes write-protect tab (5.2.3, Write-protecting cassettes).
10 On the master machine, hold down RECORD and press PLAY. No recording will take place on the source master, but the tracks will be recorded digitally on a one-to-one basis to the target slave. There is no need to carry out any special predubbing procedure such as timing the digital output the digital and analog outputs are separate. You can use the input patchbay on the target slave machine (5.3.2, Input patchbay routing) to transfer tracks from the source master tape to different tracks on the target slave. Note that you cannot combine tracks by this method.

When you copy tracks from DA-88 units, the word length should be set to 16 bits (5.4.2, Selecting input word length).
You may want to exploit these features of the DTRS system to make archive copies, and safety copies of important material (see 1.5, Recommended tapes for our suggestions on tape use). 1 With the power to all units turned OFF, make the synchronization connections as described in 8.1, Synchronization connections. Remember to terminate the slave unit. 2 Connect the DIGITAL I/O of the master unit (source) to the DIGITAL I/O of the slave (target). Use only the approved cables (PW-88D or PW88DL) to connect the DTRS units. Use of any other cables can cause damage to the units and will invalidate the warranties. 3 Turn on both units. Make sure the machines IDs are correctly set (8.2.2, Setting machine ID). 4 Insert the master tape into the source master and a blank tape, formatted with the same sampling frequency and with the same recording resolution as the master tape, into the target slave.
8.5 Synchronized formatting
When several units are connected together, you can format several tapes simultaneously, using one machine as the master. This can be a very convenient way of saving time and effort. 1 Make sure that all machines are connected together using the SYNC connections, as described above, and that the last unit in the chain is terminated. 2 Load a blank unformatted tape into each DTRS unit. Make sure all tapes are the same length.

50 TASCAM DA-78HR

3 Press the CHASE key on all of the slave DTRS units. The indicator will flash. 4 Press FORMAT/Fs twice within five seconds, on each of the DTRS units (master and all slaves) so all machines are ready to start formatting. If you press the CLEAR key while the FORMAT indicator is lit steadily, you will cancel the format operation. 5 Select the same sampling rate (48 kHz or 44.1 kHz) on each DTRS unit. Any slave DTRS unit which has a different sampling frequency selected from that selected on the master will display an error message. 6 Press and hold PLAY and press RECORD on the master. All slave units CHASE indicators will light steadily, and the tapes will start to be formatted in synchronization. There are two settings, AUTO and INDVID (individual). AUTO is the default, and the unit behaves as follows when this is selected.

9.6.11 Individual recording while chasing timecode
If slave DTRS units are chasing a master DTRS unit, the default action is for the slaves record status to follow that of the master. If the slaves are connected with TC as well as SYNC, and have TC rather than ABS selected as the timing reference, this default behavior can be overridden using the function described here. 1 Press the SHIFT key so that the SHIFT indicator is flashing, then press the MENU key until the display shows tc. chs-- ( TC CHS--).

TASCAM DA-78HR 60

2 Press the SUB MENU key so that the display shows INDV. REC ; ( INDV REC x) where x is 0 (disabled) or 1 (enabled). 3 Use the v and w keys to choose between 0 (disabled) and 1 (enabled). When this function is enabled, individual recording is possible when chasing to timecode, and when it is disabled, all slave units follow the masters lead.

61 TASCAM DA-78HR

10.1MMC enable and disable
The DA-78HR can be controlled using MIDI Machine Control Commands (MMC). To enable and disable the DA-78HRs response to these commands: 1 Press the SHIFT key so that the SHIFT indicator is flashing, and then press the MENU key until the display shows MIDI-- ( MIDI--). 2 Press the SUB MENU key until the display shows MIDI on or MIDI OFF ( MIDI ON or MIDI OFF). 3 Use the v and w keys to make the appropriate setting.
Set the MIDI ID using the method described immediately above. The MMC commands used by the DA-78HR are listed in this section (10.2, MMC Bit Map Array).
10.1.2 MMC commands and the DA-78HR
An example of a MIDI sequencer being used to control a DA-78HR (using the auto-punch of the sequencer to punch in and out on the DA-78HR tracks) is given below. Note that the sequencing software must be able to transmit MMC commands and also to sync to MTC for this to be effective:
MIDI IN (2) (keyboard events) MIDI IN (1) (M TC)
Turning this parameter on and off will also enable and disable respectively the transmission of MIDI timecode (MTC).
MIDI O (1) UT (MMCcommands)
MIDI OUT (2) (musical data)
10.1.1 Assigning a MIDI ID to the DA78HR
A MIDI ID is used in a MIDI Machine Control setup to identify each unit in the MIDI chain. One (and only one) of up to 127 units can be designated as the MIDI Timecode Master for the whole chain. This MIDI ID is not the same as a MIDI Channel number (even though some units manuals may refer to it as a channel number), and is not connected with the Machine ID (8.2.2, Setting machine ID). To set the MIDI ID: 1 Press the SHIFT key so that the SHIFT indicator is flashing, and then press the MENU key until the display shows MIDI-- ( MIDI--). 2 Press the SUB MENU key until the display showsID (ID), followed by the current ID number. 3 Use the v and w keys to change the ID to a value between 1 and 127, making sure that this is unique in your setup. You can also select the default value of ALL (ALL ), which allows the DA-78HR to accept all MMC commands transmitted over the MIDI network.

Bit 2 (04H)

(02) SELECTED MASTER CODE (09) GP1 (10) (17) (1E) (22) Short SELECTED MASTER CODE (29) Short GP1
(01) SELECTED TIME CODE (08) GP0/LOCA TE POINT (0F) GP7 (16) (1D) (21) Short SELECTED TIME CODE (28) Short GP0 LOCA TE POINT (2F) Short GP7 (36) (3D) (41) UPDA TE RATE (48) MOTION CONTROL TALLY (4F) TRACK RECORD READY (56) FIXED SPEED (5D) GENERATOR USER BITS (61) EVENT RESPONSE (68) (6F) (76) (7D)

(00) reserved

r1 r2 r3 r4
(07) MTC INPUT (0E) GP6 (15) (1C) (20) reserved

r7 r8 r9

(34) (3B) 0 (46) SELECTED TIME CODE SOURCE (4D) RECORD STATUS (54) STEP LENGTH (5B) GENERATOR COMMAND TALLY 0
(33) (3A) 0 (45) TIME STANDARD (4C) RECORD MODE (53) TRACK INPUT MONITOR (5A) CHASE MODE 0
(32) (39) 0 (44) COMMAND ERROR LEVEL (4B) FAST MODE (52) TRACK SYNC MONITOR (59) RESOLVED PLAY MODE 0
(31) (38) (3F) (43) COMMAND ERROR (4A) STOP MODE (51) RECORD MONITOR (58) CONTROL DISABLE (5F) MTC SETUP (63) VITC INSERT ENABLE (6A) (71) (78) (7F) RESUME
(30) (37) (3E) (42) RESPONSE ERROR (49) VELOCITY TALLY (50) GLOBAL MONITOR (57) LIFTER DEFEAT (5E) MTC COMMAND TALLY (62) TRACK MUTE (69) (70) (77) (7E)
(27) Short MTC INPUT (2E) Short GP6 (35) (3C) (40) SIGNATURE
(49) SELECTED TIME CODE USER BITS (4E) TRACK RECORD STATUS (55) PLAY SPEED REFERENCE (5C) GENERATOR SETUP (60) PROCEDURE RESPONSE (67) (6E) (75) (7C) WAIT

r15 r16 r17 r18 r19

(65) FAILURE (6C) (73) (7A) 0

(6D) (74) (7B) 0

(64) RESPONSE SEGMENT (6B) (72) (79) 0

TASCAM DA-78HR 64

10.3MIDI Control Change
It is also possible to send use MIDI Control Change messages to control the sub-mixer parameters, as described here:

Parameter

Channel fader Channel pan Master fader Channel mutea
10.4.2 TASCAM Exclusive messages
These TASCAM Exclusive messages are developed for controlling DTRS recorders connected to each other via the SYNC IN connections. The messages follow the following format:
F0 4E <channel> 11 <an> <cc> <data> <cs> F7 SysEx header TEAC ID Obtained by subtracting 1 from the Machine ID Operation code (DTRS SYNC IN) Machine ID set on each DTRS recorder Command code Data format varies according to command checksum lower 7 bits of the sum of all numbers from (and including) <cc> up to <cs> End of SysEx

M Control IDI

Volume (7) Pan (10) Control (9) Control (11)

He value x

0x07 0x0a 0x09 0x0b
a. Values of 0 through 63 turn mute on, values of 64 through 128 turn it on.
MIDI channels 1 through 8 control channels 1 through 8 on the master DA-78HR in a DTRS chain. MIDI channels 9 through 16 can be used to control channels 1 through 8 on the first slave DA-78HR in a chain.