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JLCooper Electronics MixMate Owner's Manual

Eight track automation system
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Mix
Mate
eight track automation system
owners manual
first edition
(c) 1988
J.L.Cooper Electronics

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Summary of Contents for JLCooper Electronics MixMate

  • Page 1 Mate eight track automation system owners manual first edition (c) 1988 J.L.Cooper Electronics...
  • Page 2 When you mix- down with MixMate, you will be using the same read/write/update utilities found on con- sole automation systems that typically cost $25,000 to $500,000. All in one single user friendly package.

  • Page 3: Table Of Contents

    Chapter 4 SETTING UP FOR SYNC..........Choosing Sync Type Hookup For Sync Striping Sync Selecting Sync In and Out Chapter 5 MixMate (NORMAL MODE)........Fader and Mute Controls Clearing Memory Mixing Editing End of Session Chapter 6 MixMate (PLUS MODE)..........
  • Page 5 In the two LOBO MODES, MixMate has no intelligent control of its own VCAs, however its synchronization functions still operate. (Chapter 7) MixMate will default to NORMAL on power up. If you have the PLUS option installed, MixMate will shift to PLUS mode upon first receipt of commands from the attached computer.
  • Page 6 Chapter 2 The Front and Rear Panel [11] [10] [3, 13] SHIFT SYNC Norm Plus Lobo1 Lobo2 [16] ENABLE [2, 14] [17] MUTE MODE NULL [4, 12] Mate [ [ [ [ 1 1 1 1 7 7 7 7 ] ] ] ] [ [ [ [ 1 1 1 1 8 8 8 8 ] ] ] ] [ [ [ [ 2 2 2 2 1 1 1 1 ] ] ] ] [ [ [ [ 2 2 2 2 2 2 2 2 ] ] ] ]...
  • Page 7 PLUS: This is used with the PLUS OPTION circuit card installed for graphic dis- play and expanded memory. LOBO 1 and LOBO 2 : Allow the MixMate to send and respond to MIDI Controller or Note Commands in any range on a selected MIDI channel to allow an external se- quencer or event controller to store fader/mute moves.
  • Page 8 MixMate. MIDI OUT This connects to the Midi In of an attached device which is relying upon MixMate for MTC or MIDI Clock data. When Echo function is enabled, data going into Midi In will echo out this port.
  • Page 9 Each channel of audio is to be routed through a dbx VCA, which acts as an attenuator. This means that when the MixMate's fader is "full on", the signal level coming out of the MixMate will be equal to the signal level coming in ("unity gain"). The MixMate operates at -10dBm (that is,0 VU)

  • Page 11: Chapter 4 Setting Up For Sync

    MixMate PLUS will stripe all formats of SMPTE starting at any user- selected SMPTE time. If you choose to use MixMate in SMPTE mode, all the fader moves you make will be remembered with respect to hours:min:sec:frames. While MixMate is reading SMPTE, you may elect to output MTC (MIDI Time Code).
  • Page 12 MixMate receives MIDI SYNC clocks from an external drum ma- chine or sequencer.Upon tape playback, or when advancing or rewinding tape to do overdubs or mixdown, the FSK tone is fed back into MixMate. MixMate converts the FSK tone into a MIDI Song Position Pointer, fol- lowed by MIDI SYNC clocks, sent out of the MixMate's MIDI OUT, to your sequencer or drum machine.
  • Page 13 CAN GENERATE MIDI SYNC WITH SONG POINTER. choose There may be situations where you do not wish to "sync" MixMate at all. In the two LOBO modes, MixMate becomes a brainless box of MIDI con- trolled VCA's and Midi-generating faders and mute switches. You may wish to store the fader moves in some place other than the MixMate's memory.
  • Page 14 OUTPUT of the MixMate to the MIDI INPUT of the sequencer or drum ma- chine. If you chose to use MixMate in SMPTE or FSK modes you will first need to stripe the tape. IF YOU ARE USING A PRE-STRIPED TAPE OR OTHER SOURCE OF SMPTE, OR IF YOU ARE LOCKING TO MIDI SYNC, SKIP THIS SECTION and turn to page 15.
  • Page 15 LOCK LED will start blinking again. Stop the tape. Press the SHIFT key again to return MixMate to normal operation. Tap the SYNC key to select SMPTE or FSK. If you are driving MixMate with MIDI Sync, just ignore the sync LEDs because MixMate knows how to automatically sense incoming MIDI clocks.
  • Page 16 The MixMate, when it reads FSK off tape, will first look for a number in the tone to decode and send out as a MIDI Song Position Pointer.

  • Page 17: Selecting Sync In And Out

    FUNCTION. TO ENABLE "SLOW CHASE" PRESS AND HOLD SYNC KEY , AND WHILE HOLDING PRESS ENABLE KEY #2. MixMate defaults to "FAST CHASE" whenever you power up. ENABLE key #1 will select FAST CHASE, and the LEDs indicate your selection.

  • Page 19: Fader And Mute Controls

    WRITE and UPDATE LED's are lit. WRITE MODE is the mode in which fader and mute moves are "recorded" by MixMate's memory while locked to any type of sync. When an au- dio channel is put into WRITE MODE, fader and mute moves will replace write (or "overwrite") all previously recorded moves on that audio channel.This...
  • Page 20 (But the MixMate will not under any cir- cumstances exceed unity gain.) example UPDATE MODE is also used for editing Mute moves. When a mute key is pressed in UPDATE MODE, no change is made to the LED status, nor is the event written into memory.
  • Page 21 MixMate scans the faders and mutes as soon as sync comes in. MixMate stores the initial levels and mutes so that it will "know" how to set up the VCAs when you roll back to the very beginning of the first pass song.

  • Page 22: Editing 20

    VCA, which will continually vary just as you have programmed. For example, MixMate may turn the audio level to full attenuation (i.e. all the way down), but the fader has been left "full on" from a previous pass.

  • Page 23: Mixmate(Normal)

    (3) Making a mute terminate earlier is perhaps the simplest edit. With the song playing back put MixMate into WRITE MODE. You will see the ENA- BLE LED turn on, (signifying that the channel is muted), simply turn it off when desired.
  • Page 24 SYNC (Or SMPTE-generated MTC). That means that the one MIDI cable going into your sequencer can carry both keyboard data and sync.The MIDI OUT of your MIDI keyboard would go to the MIDI IN of MixMate. Please note that not every sequencer is capable of taking advantage of this.
  • Page 25 TER 8 ). MixMate can accept a Sysex load of data at any time, provided that it is not receiving or sending sync at the same time. feature for To use MixMate live on stage, hook it up to your present MIDI distribution...
  • Page 26 live on stage...
  • Page 27 Chapter 6 MixMate (PLUS) MixMate PLUS consists of a normal MixMate with (1) a special field- installable interface card and (2) a software disk for either an ATARI ST or Apple Macintosh computer. Contact your dealer if you want to get this option.

  • Page 28: Mixmate Plus

     File Setup MixMate Plus 100% MODES MUTES...
  • Page 29 LOAD will allow you to load selected files of previously saved mix data (and screen preferences) into MixMate. SAVE is used to manually save mix data (and screen preferences) from MixMate onto disk if you have not been using Auto Archive.
  • Page 30 MIDI interface box. UPDATE (Macintosh only) requests the initial condition of faders and mutes from MixMate. This is used if the MixMate unit is turned on af- ter the computer has started the MixMate PLUS program.
  • Page 31 WRITE MODE is the mode in which fader and mute moves are "recorded" orient by MixMate's memory while locked to any type of sync. When an au- yourself dio channel is put into WRITE MODE, fader and mute moves will replace (or "overwrite") all previously recorded moves on that audio channel.This...
  • Page 32 UPDATE MODE would allow you to shift up or down the level by adding or subtracting from the moves already entered, without having to re-enter all the moves. (But the MixMate will not under any cir- cumstances exceed unity gain.) UPDATE MODE is also used for editing Mute moves.
  • Page 33 To mute a channel, put MixMate into MUTE MODE by pressing MUTE update key. (MUTE LED on.) Now the individual channel ENABLE keys above each fader act as channel mute keys. When in MUTE MODE, the individ- ual ENABLE LEDs indicate the mute status. ENABLE LED ON indicates that the channel is muted.
  • Page 34 ENABLE keys above each channel. Start the tape transport (or other source of sync). The green LOCK LED will turn on to show when MixMate is receiving sync. The LOCK LED should stay on steady without flickering. (Flicker may be indicative of faulty stripping.
  • Page 35 For example, MixMate may turn the audio level to full attenuation (i.e. all the way down), but the fader has been left "full on" from a previous pass. Suppose that you were to ENABLE the fader now to do a re-write of the channel.
  • Page 36 You will not see a change of the LED, but you have informed update mode MixMate that you want to erase any mute events encountered from then until tape is stopped. Let the song run until you are past the previously muted region and stop the tape.
  • Page 37 (5) To make a mute begin earlier, cue up the song to a point before the place where you want the mute to begin. Put MixMate into WRITE MODE and roll tape. Mute the channel at the desired place, and then quickly put MixMate into READ ALL MODE.
  • Page 38 BAR and clicking on SAVE. If you have selected AUTO-ARCHIVE, then your mix has already been backed-up to disk. To use MixMate live on stage, hook it up to your present MIDI distribu- tion system (via a thru box or switchbox) so that MixMate can receive MIDI Sync from a sequencer or drum machine into the normal (not PLUS) MIDI input.
  • Page 39 echo on feature for fsk and mtc users section 7, end of session saving live on stage...
  • Page 41 When the sequencer is played back, data coming back into MixMate's MIDI IN is decoded and used to control the eight individual VCA channels.
  • Page 42 Each VCA has a unique note number assigned to it. It range of is possible to set one MixMate so that its VCA's respond to MIDI note numbers numbers 0 through 8, and the other MixMate to respond to note numbers used 9 through 16.
  • Page 43 Mate that does not conflict with a track with keyboard data on it. possibilities (2) If you are using MixMate as a synchronizer, set the "host system" to external sync. When MixMate is set to receive SMPTE it will output MTC if selected.
  • Page 44 Start the tape transport (or other source of sync). The green LOCK LED will turn on to show when MixMate is receiving SMPTE or FSK. The LOCK LED should stay on steady without flickering. (Flicker may be in- dicative of faulty stripping.
  • Page 45 editing on. Now you can punch into record on the sequencer and enter the new fader moves without any level jump. nulls...
  • Page 47 Chapter 8 MIDI IMPLEMENTATION overview The Midi behavior of MixMate depends on which mode you are in. Here is an outline: NORMAL MODE MixMate generates no Midi data upon moving a fader or pressing a mute button. It does generate Midi Sync data (Start, Stop, Continue, Song Posi- tion Pointer) when operating in FSK mode, or Midi Time Code (MTC) when operating in SMPTE if MTC has been enabled.
  • Page 48 LOBO 2 MODE- MixMate will send and receive Midi Note On data in this mode. The Midi Channel may be set from the front panel by holding down SHIFT and pressing the CHAN button repeatedly until the correct LED shows.
  • Page 49 sysex format F0h 15h 0Dh 41h F7h This will result in the immediate sending of the dump, which uses the same form as the incoming dump shown above. Alternately, a dump may be sent by holding down SHIFT: SYNC: MODE on the front panel.
  • Page 51 45 minutes pulling out hair and wondering why you ever got into this business,anyway. Just that fact that you are a MixMate owner demonstrates that you have a very sophisticated studio set up with lots of variables. So the initial burden of trouble- shooting will be on you, because you understand your own sys- tem better than anyone else.
  • Page 52 ECHO ON. If the MIDI OUT of your sequencer or drum machine is hooked up to the MIDI IN of MixMate, a MIDI sync "feed- back loop" will occur if ECHO ON is enabled. Hum is usually caused by a faulty cable, or by a ground loop. Defective cables can be located by a systematic removal of each cable.
  • Page 53 service is, regrettably, failure of the customer to read his owner's manual. We don't mean to get cocky because occasionally there will be failures, but please, read the manual and debug your system before calling. We can't find your bad cable 1,500 miles away.
  • Page 55 Chapter 10 THE SPECS TYPE: dbx 2155A INPUT IMPEDENCE: 10K Ohms. OUTPUT IMPEDENCE: 10 Ohms. OPERATING LEVEL: -10dBm. TYPICAL VCA: S/N -86dB. THD+N 0.022%. CHANNEL CROSSTALK: -90dB. ATTENUATION: -81dB. MEMORY 4000 EVENTS (NORMAL MODE) INTERNAL 40,000 EVENTS (PLUS OPTION) FADER RESOLUTION 64 STEPS (NORMAL MODE) 126 STEPS (PLUS OPTION) TIMING RESOLUTION...
  • Page 57 Chapter 11 QUICK OPERATION REFERENCE MixMate (NORMAL) 1.Hookup Audio. Patch MixMate into channel insert points, patch bay, or between instruments and mixer. 2.Select Sync. Choose one of MixMate's four sync options: "smart" FSK, MIDI SYNC, SMPTE, or SMPTE with MTC.
  • Page 58 Chapter 12 QUICK OPERATION REFERENCE MixMate (PLUS) 1. Hookup Audio. Patch MixMate into channel insert points, patch bay, or between instruments and mixer. Hook up PLUS PORTS to computer. Start up MixMate Plus program on computer. 2. Select Screen Preferences. Use mouse, select from MENU BAR: Set 3.
  • Page 59 selecting MENU BAR:FILE, Save.