![MOTU 828x [12/126] The 828x rear panel](/img/pdf.png)
MOTU 828x [12/126] The 828x rear panel
![MOTU 828x [12/126] The 828x rear panel](/views2/1989533/page12/bgc.png)
ABOUT THE 828X
12
THE 828X REAR PANEL
The 828x rear panel has the following connectors:
■
Eight balanced quarter-inch (TRS) analog
outputs (with 24-bit 192 kHz converters)
■
Eight balanced quarter-inch (TRS) analog
inputs (with 24-bit 192 kHz converters)
■
Two XLR “main” analog outputs with 24-bit
192 kHz converters
■
Two balanced quarter-inch (TRS) analog sends
(for the front-panel mic/guitar inputs)
■
Balanced TRS quarter-inch analog in/out
dedicated for SMPTE time code
■
Two sets of optical connectors (in and out),
individually switchable among ADAT optical
“lightpipe”, 96 kHz S/MUX optical or S/PDIF
“TOSLink”
■
RCA S/PDIF in/out
■
MIDI IN and MIDI OUT
■
Word clock in/out
■
Foot pedal jack
■
One Thunderbolt connector
■
One high-speed USB2 connector
28 inputs and 30 outputs
All 828x inputs and outputs can be used simulta-
neously, for a total of 28 inputs and 30 outputs
when operating at 44.1 or 48 kHz:
* The phone jack next to the MAIN VOL knob is
hard-wired to (mirrors) the XLR main outs. The
PHONES output can operate as an independent
output pair, or it can mirror any other 828x output
pair, such as the main outs.
† The 828x optical connectors support several
standard optical I/O formats, which provide
varying channel counts. See “Optical” on page 13
for details about optical bank operation.
With the exception of the phone jack on the front
panel labeled “(MAIN)”, all inputs and outputs are
discrete. For example, using a mic input does not
“steal” an input from the TRS analog I/O bank.
Analog
All analog inputs are equipped with 24-bit 192 kHz
A/D converters. All analog outputs have 24-bit
192 kHz D/A converters. All audio is transferred to
and from the computer in a 24-bit data stream.
All quarter-inch analog inputs can accept either a
balanced or unbalanced plug.
Connection Input Output
Analog 24-bit 192 kHz on bal/unbal TRS 8 8
Mic/guitar 24-bit 192 kHz on XLR/TRS combo 2 -
Main outputs 24-bit 192 kHz on XLR - stereo
Headphone output* - stereo
ADAT optical digital† 16 16
RCA S/PDIF 24-bit 96kHz digital stereo stereo
Total 28 30
Содержание
- User guide for windows 1
- About the mark of the unicorn license agreement and limited warranty on software 2
- Copyright notice 2
- Limited warranty on hardware 2
- Reminder of the terms of your license 2
- Update policy 2
- About the 828x 3
- Audio i o reference 3
- Configuring host audio software 3
- Contents 3
- Cuemix fx 3
- Front panel operation 3
- Installing the 828x hardware 3
- Installing the 828x software 3
- Motu audio console 3
- Motu smpte console 3
- Packing list and system requirements 3
- Part 1 getting started 3
- Part 2 using the 828x 3
- Part 3 appendices 3
- Quick reference 828x front panel 3
- Quick reference 828x rear panel 3
- Quick reference motu audio console 3
- Reducing monitoring latency 3
- Troubleshooting 3
- Ac input 4
- Adapter 4
- Caution read this safety guide before you begin installation or operation failure to comply with safety instructions could result in bodily injury or equipment damage 4
- Caution to reduce the risk of electrical shock do not remove cover no user serviceable parts inside refer servicing to qualified service personnel 4
- Environment 4
- Figure a figure b 4
- Grounding lug 4
- Grounding prong 4
- Hazardous volages contact may cause electric shock or burn turn off unit before servicing 4
- If you are not sure that your outlet box is properly grounded have it checked by a qualified electrician note the adapter illustrated is for use only if you already have a properly grounded two prong receptacle adapter is not allowed in canada by the canadian electrical code use only three wire extension cords which have three prong grounding type plugs and three prong receptacles which will accept the motu 828x plug 4
- Important safeguards 4
- Make sure this is connected to a known ground 4
- Prong plug 4
- Properly grounded 3 prong outlet 4
- Safety precautions and electrical requirements 4
- The motu 828x is equipped with a three conductor cord and grounding type plug which has a grounding prong approved by underwriters laboratories and the canadian standards association this plug requires a mating three conductor grounded type outlet as shown in figure a below if the outlet you are planning to use for the motu 828x is of the two prong type do not remove or alter the grounding prong in any manner use an adapter as shown below and always connect the grounding lug to a known ground it is recommended that you have a qualified electrician replace the two prong outlet with a properly grounded three prong outlet an adapter as illustrated below in figure b is available for connecting plugs to two prong receptacles 4
- To reduce the risk of electrical shock or fire 4
- Two prong receptacle 4
- Warning do not permit fingers to touch the terminals of plugs when installing or removing the plug to or from the outlet 4
- Warning if not properly grounded the motu 828x could cause an electrical shock 4
- Warning the green grounding lug extending from the adapter must be connected to a permanent ground such as to a properly grounded outlet box not all outlet boxes are properly grounded 4
- Warning to reduce the risk of fire or electrical shock do not expose this appliance to rain or other moisture 4
- 12 13 14 15 16 7
- 3 1 4 5 6 7 8 9 7
- Quick reference 828x front panel 7
- Quick reference 828x rear panel 8
- Chapter 9
- How to access these settings 9
- Quick reference motu audio console 9
- About the 828x 11
- Chapter 11
- Overview 11
- The 828x rear panel 12
- The 828x front panel 14
- Bit and 24 bit recording 15
- Cuemix fx 32 bit floating point mixing and effects 15
- Host audio software 16
- Chapter 17
- Packing list 17
- Packing list and system requirements 17
- Please register today 17
- Windows system requirements 17
- Chapter 19
- Installation 19
- Installing the 828x software 19
- Overview 19
- Cuemix fx 20
- Motu audio console 20
- Motu audio drivers 20
- Motu midi driver 20
- Motu smpte console 20
- Chapter 21
- Connect the 828x interface 21
- Installing the 828x hardware 21
- Overview 21
- Connect audio inputs and outputs 23
- Connect a foot switch 27
- Connect midi gear 27
- A typical 828x setup 28
- Headphone outs or any other output pair you can control monitoring either from the front panel or from the included cuemix fx software the two front panel guitar mic inputs can be routed to outboard effects processors such as a compressor eq or reverb via the rear panel sends 28
- Here is a typical 828x studio setup this rig can be operated without an external mixer all mixing and processing can be done in the computer with audio software during recording you can use the 828x s cuemix fx no latency monitoring to listen to what you are recording via the main outs 28
- Operating the 828x as a converter 29
- Making sync connections 30
- Syncing to smpte timecode 31
- The 828x system can resolve directly to smpte timecode it can also generate timecode and word clock under its own clock or while slaving to timecode therefore the 828x can act both as an audio interface and as a digital audio synchronizer to which you can slave other digital audio devices you can use the 828x to slave your audio software to smpte as well via sample accurate sync if your host software supports it 31
- On the other hand when you transfer audio from the s pdif device into the 828x you ll have to slave the 828x to its s pdif input if you have other digital audio devices connected to the 828x and they are not slaved directly to the 828x itself you may hear clicks and pops resulting from their unsynchronized audio clock if so just turn them off during the transfer 32
- S pdif devices will sync to the 828x in one of two ways 32
- S pdif devices with no word clock if your s pdif device has no word clock sync connectors just connect it to the 828x via the s pdif connectors when the device records s pdif audio from the 828x it will simply synchronize to the clock provided by the audio input 32
- S pdif devices with word clock if your s pdif device has a word clock input slave the s pdif device to the 828x via their word clock connection you can then freely transfer audio between the 828x and the s pdif device 32
- Syncing s pdif devices 32
- Via the s pdif connection itself 32
- Via word clock 32
- Syncing word clock devices 33
- Accessing the 828x settings 37
- Chapter 37
- Motu audio console 37
- Overview 37
- General tab settings 38
- X tab settings 41
- Chapter 43
- Front panel operation 43
- Main volume 43
- Mic guitar inputs 43
- Overview 43
- Meters and status leds 44
- Phones 44
- Multi function lcd display 45
- Push button rotary encoders 45
- Audio menu 46
- X setup menu 46
- Cuemix menu 47
- Channel page param 50
- Inputs menu outputs menu 50
- Mic only 50
- All settings including all mix settings and global settings are saved in the 828x s memory and they remain in effect even when the 828x is not connected to a computer this allows you to use the 828x as a stand alone 8 bus mixer you can make adjustments to any setting at any time from the front panel 51
- Channel page param 51
- Mixes menu 51
- Reverb menu 51
- Stand alone operation 51
- Chapter 53
- Configuring host audio software 53
- Overview 53
- Preparation 53
- Run motu audio console 53
- Choosing the motu audio driver 54
- Processing live inputs with host plug ins 58
- Reducing latency 58
- Working with 828x inputs and outputs 58
- Synchronization 59
- Using a foot switch 59
- Working with cuemix fx mixing and effects 59
- Chapter 61
- Overview 61
- Reducing monitoring latency 61
- Monitoring live input 62
- Adjusting the audio i o buffer 63
- Cuemix fx hardware monitoring 64
- Two methods for controlling cuemix fx 64
- A 16 bus mixer with eq compression and reverb 67
- Chapter 67
- Cuemix fx 67
- Overview 67
- Advantages over host based mixing and processing 68
- Cuemix fx basic operation 68
- Opening cuemix fx 68
- Channel specific settings channel strip eq and dynamics plus the global meter bridge and reverb processor 69
- Global reverb processor the 828x has a global reverb module figure 9 23 on page 87 once it has been activated you can feed signals to the reverb processor from various points in the 828x mix matrix via input sends bus sends and output sends stereo output from the reverb processor can then be fed back to mix busses or output pairs using reverb returns 69
- Other features cuemix offers many additional features discussed in this chapter such as talkback listenback extensive metering graphic editing of certain effects parameters and more 69
- Widening the cuemix fx window to view more input faders at once resize the window 69
- The mixes tab 70
- The inputs tab 72
- The outputs tab 74
- The channel settings section 76
- Composite curve white line 79
- Eq filter 79
- Filter display options menu 79
- Filter enable disable 79
- Filter handle 79
- Filter response display 79
- Filter type 79
- Individual filter curve 79
- Low high pass filter 79
- Parameter display 79
- Q handle 79
- Vertical scale 79
- The monitor group 89
- Dsp meter 90
- Solo light 90
- Talkback and listenback 90
- Shortcuts 91
- Edit menu 92
- File menu 92
- Devices menu 93
- Fft and spectrogram display 93
- Oscilloscope 96
- Click and drag this value up or down to set it or double click to return to the default value 99
- Color status 99
- Holdoff holdoff defines a time interval during which the oscilloscope does not trigger the most recent trace will be displayed during that period when the period is over the trigger is re armed i e it will begin looking for the criteria again 99
- Measurement information you can view detailed information about a particular time range by using the measurement bars 99
- Trigger indicator the trigger indicator figure 9 40 on page 98 displays the state of the trigger and also provides a way to manually interact with it the trigger indicator always displays one of three colors 99
- Trigger modes the trigger menu figure 9 40 on page 98 provides four modes 99
- Trigger modewhat it does 99
- You can also click on the trigger indicator to force certain actions depending on the trigger mode in auto and normal modes clicking on the trigger indicator causes the display to run freely you may click hold to force this to occur for as long as you d like in single sweep mode clicking on the trigger indicator re arms the trigger when the trigger mode is none clicking on the trigger indicator has no effect 99
- X y plot 102
- Phase analysis 105
- Arrows 109
- Detected frequency 109
- Detected note 109
- Meter value 109
- Reference frequency 109
- Configurations menu 110
- Phones menu 110
- Talkback menu 110
- Control surfaces menu 111
- Chapter 113
- Clock address 113
- Frame rate 113
- Motu smpte console 113
- Overview 113
- Reader section 114
- Generator section 115
- Resolving cubase or nuendo to time code 115
- Setting up for smpte time code sync 115
- Appendix 119
- Customer support 119
- Troubleshooting 119
- Replacing discs 120
- Technical support 120
- Appendix 121
- Audio i o reference 121
- Inputs at 1x sample rates inputs are always listed in the same order as follows when operating the 828x at 1x sample rates 44 or 48 khz 121
- Inputs at 2x sample rates when operating the 828x at a 2x sample rate 88 or 96 khz inputs are listed as follows 121
- Inputs at 4x sample rates when operating the 828x at a 4x sample rate 176 or 192 khz inputs are listed as follows 121
- Overview 121
- The following sections show how you can identify each input and output in a numbered list like this 121
- The motu audio drivers supply text string labels for the 828x s audio inputs and outputs to clearly identify each one but some applications do not display these labels 121
- Output 176 192 khz channels list position comment 122
- Output 44 48 khz channels list position comment 122
- Output 88 96 khz channels list position comment 122
- Outputs at 1x sample rates outputs are always listed in the same order as follows when operating the 828x at 1x sample rates 44 or 48 khz 122
- Outputs at 2x sample rates when operating the 828x at a 2x sample rate 88 or 96 khz outputs are listed as follows 122
- Outputs at 4x sample rates when operating the 828x at a 4x sample rate 176 or 192 khz outputs are listed as follows 122
- 67 112 123
- 54 61 63 64 68 124
- 40 54 63 125
- 43 44 122 125
- 13 30 32 126
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