![RME OCTAMIC XTC [24/62] Using multiple units with madi](/img/pdf.png)
RME OCTAMIC XTC [24/62] Using multiple units with madi
![RME OCTAMIC XTC [24/62] Using multiple units with madi](/views2/2007994/page24/bg18.png)
24
User’s Guide OctaMic XTC © RME
10. Using Multiple Units with MADI
Devices like the OctaMic XTC can be connected serially via MADI, and then transmit up to 64
channels (with up to 8 XTC) over one single MADI cable. In the menu Digital Routing the user
can decide at which place of the 64-channel MADI stream the current eight channels of the XTC
are inserted.
When multiple devices are connected serially, the MADI I/O of each unit causes a delay of sev-
eral samples. This problem is solved by the function Delay Compensation. Its settings are found
in SETUP – Options – MADI Settings.
10.1 Delay Compensation
Default: Off. Available settings: Off, Manual, Auto-ID, Auto-CA
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.
Delay Compensation delays the signals in a way that they are sample-synchronous in multi-
device operation.
Delay Compensation has to be manually activated in each unit!
The following table lists the delay in samples from two up to eight units connected serially.
When using four units, the data of the first unit are delayed by 9 samples to the last unit, the
units 2 and 3 are delayed by 6 and 3 samples respectively. At Double Speed and Quad Speed
the values rise. Please note that in Double Speed no more than four, in Quad Speed no more
than two OctaMic XTC can be used serially with MADI.
Units Delay Delay DS Delay QS DC DC DS DC QS
2 3 6 12 21 18 12
3 6 12 - 21 18 -
4 9 18 - 21 18 -
5 12 - - 21 - -
6 15 - - 21 - -
7 18 - - 21 - -
8 21 - - 21 - -
Inputs and outputs are delayed in different ways. With the inputs the delay equals the values
shown in the table. When using multiple units in serial cabling, the input data of the second unit
is delayed by 3 samples, the input data of the third by 6 samples and so on. This way, at the
end of the chain all input data are sample-aligned again. Chapter 13.3 shows a diagram to illus-
trate the setup.
The XTC’s Delay Compensation affects not only the analog inputs, but the digital ones as well.
For example additional AD-converters connected to the ADAT inputs and inserted into the
MADI stream – all the converters analog inputs fed to multiple XTCs will be sample-aligned
again.
Even the analog outputs of the XTC use the Delay Compensation. For technical reasons here
the delay is a fixed constant of 21 samples in Single Speed, no matter how many devices are
connected serially. In Double Speed the delay is 18, in Quad Speed 12 samples. The in most
cases slightly increased delay is outweighed by the big advantage of sample-aligned analog
outputs across multiple units.
21 samples @ 48 kHz
equal 437 µs.
18 samples @ 96 kHz
equal 187 µs.
12 samples @ 192
kHz equal 62.5 µs.
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
Похожие устройства
- RME MADI Converter Руководство по эксплуатации
- RME OCTAMIC II Руководство по эксплуатации
- Roland DJ-202 Руководство по эксплуатации
- RME M-32 DA Руководство по эксплуатации
- RME M-32 AD Руководство по эксплуатации
- RME HDSPe MADI FX Руководство по эксплуатации
- Soundcraft Si Performer 2 Руководство по эксплуатации
- RME ADI-648 Руководство по эксплуатации
- RME HDSP 9652 Руководство по эксплуатации
- Native Instruments Komplete Kontrol A25 Руководство по эксплуатации
- RME ADI-6432 Руководство по эксплуатации
- RME ADI-2 Руководство по эксплуатации
- Sennheiser AB 3-B Руководство по эксплуатации
- Se Electronics X1 S Руководство по эксплуатации
- Se Electronics X1 A Руководство по эксплуатации
- Se Electronics V7 MC1 Руководство по эксплуатации
- Se Electronics SE 4ST Руководство по эксплуатации
- Se Electronics SE 2200 Руководство по эксплуатации
- ONSTAGE GPB4000 Руководство по эксплуатации
- Rode NT-USB Руководство по эксплуатации