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RME OCTAMIC XTC Руководство по эксплуатации онлайн [32/62] 776279
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User’s Guide OctaMic XTC © RME
13.3 MADI
The optical MADI I/O provides the OctaMic XTC with a 64-channel MADI input and output. The
menu Digital Routing determines on which channels the XTC transmits its data (see chapter
8.5.1).
The MADI input will operate as an optional clock source (menu Clock) as well as a through in-
put. Since each OctaMic XTC uses only 8 channels, up to 56 channels can be passed through,
switching this function off even all 64.
This technique is used to serially cascade several OctaMic XTC. Incoming MADI data is passed
through unchanged, only one block of eight channels is replaced. This allows up to 8 devices to
be connected serially. All 64 combined channels are available at the last device's output. The
the block of eight channels used by an individual device is determined either automatically
(Auto-CA) or manually (Compens. ID) in the menu MADI Settings:
ID 1: channels 1-8 ID 2: channels 9-16 ID 3: channels 17-24
ID 4: channels 25-32 ID 5: channels 33-40 ID 6: channels 41-48
ID 7: channels 49-56 ID 8: channels 57-64
The configuration of the MADI output signal is also done in the MADI Settings menu. MADI
Format sets the format to 56 or 64 channels. MADI Frame sets the format to 48k Frame or 96k
Frame when operating at 88.2 and 96 kHz. Sample rates higher than 48 kHz can be transmitted
with the standard 48k Frame as well, but then there is no automatic detection of the real sample
rate. This is the main advantage of the 96k Frame, but not all MADI devices support that format.
The OctaMic XTC can also be remote controlled via MADI. At the same time MIDI data are
transmitted via MADI, see chapter 11.2.
When multiple devices are connected serially, the MADI I/O of each OctaMic XTC causes a
delay of 3 samples. Therefore at the MADI output of the last device, the data of all upstreamed
devices are delayed. At Double Speed the delay rises to 6 samples per unit, at Quad Speed to
12 samples.
The problem of this offset is solved by the function Delay Compensation, see chapter 10.1. It
delays the signals in a way that they are sample-synchronous in multi-device operation. The
diagram on the next page shows a serial setup with HDSPe MADI card, three OctaMic XTC and
activated Delay Compensation with automatic channel assignment (Auto-CA).
Delay Compensation has to be manually activated in each unit!
Содержание
- Autose 1
- Octamic xtc 1
- Professional mic line instrument preamp 8 channel microphone line ad converter 4 channel line phones da converter 8 channel analog to aes adat interface 64 channel madi interface adat aes madi format converter 24 bit 192 khz digital audio midi remote control usb 2 class compliant operation 1
- Quickgai 1
- Steadycloc 1
- User s guide 1
- General 2
- Inputs and outputs 2
- Usage and operation 2
- Class compliant mode 3
- Technical reference 3
- Important safety instructions 4
- General 5
- Octamic xtc 5
- User s guide 5
- Brief description and characteristics 6
- Introduction 6
- Package contents 6
- Controls connectors displays 7
- First usage quick start 7
- Accessories 9
- Quick start 9
- Appendix 10
- Warranty 10
- Ce fcc compliance 11
- Iso 9001 11
- Note on disposal 11
- Octamic xtc 13
- Usage and operation 13
- User s guide 13
- Encoders 14
- Front panel controls 14
- Select keys 14
- Menu keys 15
- Channel menu 16
- Setup menu 18
- Clock section 21
- Phantom power 22
- The input channel in detail 22
- Autoset 23
- Instrument 23
- Delay compensation 24
- Using multiple units with madi 24
- Compensation id 25
- Control via totalmix fx 26
- Midi over madi 26
- Remote control 26
- Inputs and outputs 27
- Octamic xtc 27
- User s guide 27
- Analog inputs outputs 28
- Instrument in 28
- Line in trs 28
- Mic line in xlr 28
- Phones line out 29
- Aes ebu 30
- Digital inputs and outputs 30
- Adat optical 31
- Word clock 34
- Word clock input and output 34
- Operation and technical background 35
- Cabling and termination 36
- Class compliant mode 37
- Octamic xtc 37
- User s guide 37
- General 38
- Operation 38
- System requirements 38
- Useful hints 39
- Class compliant mode under windows and mac os x 40
- Operation at the unit 41
- Supported inputs and outputs 41
- Octamic xtc 43
- Technical reference 43
- User s guide 43
- Analog 44
- Technical specifications 44
- Digital inputs 45
- Digital 46
- Digital outputs 46
- Firmware 47
- General 47
- Madi user bit chart 47
- Connector pinouts 48
- Technical background 50
- Terminology 50
- Lock and synccheck 51
- Latency and monitoring 52
- Ds double speed 53
- Qs quad speed 53
- Aes ebu spdif 54
- Signal to noise ratio in ds qs operation 55
- Madi basics 56
- Steadyclock 57
- Block diagram 58
- Basic sysex format 59
- Message types commands 59
- Midi implementation octamic xtc 59
- Parameters 60
- Table commands 60
- Details 61
- Level meter data 61
- 43 64db pdb value 65 22 43 64db pdb value 65 62
- 5 0db 6db pdb value 125 0 125 5 0db 6db pdb value 125 0 62
- 6 db 42db pdb value 107 0 94 3 6 db 42db pdb value 107 0 62
- Abbreviations 62
- Bit 1 mute bit 1 mute 0x02 62
- Bit 2 3 phase invert 0 off 1 both 2 left 3 right bit 2 3 phase invert 0 off 1 both 2 left 3 right 0x04 62
- Bit 4 level 0 low 1 high bit 4 level 0 low 1 high 0x08 62
- Level meter send only level meter send only 62
- Lsb channel 1 62
- Lsb source bit 0 0x01 62
- Msb bit 0 bit 7 source see value table 1 62
- Msb channel 2 62
- N a not assigned s d see details 62
- Phones settings 62
- Underflow 0 underflow 62
- Value 126 ovr 62
- Value table 1 phones sources 62
- Value table 2 digital routing sources 62
- Value table 3 midi sources 62
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