![RME OCTAMIC XTC [21/62] Clock section](/img/pdf.png)
RME OCTAMIC XTC [21/62] Clock section
![RME OCTAMIC XTC [21/62] Clock section](/views2/2007994/page21/bg15.png)
User’s Guide OctaMic XTC © RME
21
8.6 Clock Section
Source and frequency of the unit’s clock are configured in Options – Clock. Clock Source offers
several choices for the current clock source: internal clock or external clock (WCK = Word
clock, AES 1 to 4, MADI, ADAT). Sample Rate sets the sample rate for both external and inter-
nal clock.
WCK, AES 1-4, MADI, ADAT (Slave Mode)
Activates the corresponding input as clock reference. In case of a missing or invalid clock
source signal the display of the current sample rate in the lower right corner of the display turns
to red, then the unit changes to its internal clock.
INT (Master Mode)
Activates the internal clock.
With a setting of INT (internal clock) it is mandatory that the clock rate of the sources is
synchronous to the OctaMic XTC. Therefore the external device has to be synchronized to
the OctaMic XTC word clock output or AES/ADAT/MADI output.
The OctaMic XTC thus has to be master, all devices connected to it must be slave. In order to
avoid clicks and drop outs due to faulty or missing synchronicity, a special process called Sync-
Check compares the incoming data and the OctaMic XTC internal clock. The sync state is indi-
cated by a flashing (error) or constantly lit (OK) STATE LED.
A selection of Double and Quad Speed is also possible when using external clock (Slave). If the
OctaMic XTC should operate at 192 kHz, but receives a synchronous word clock of 48 kHz, set
Sample Rate to that value. This way, AD/DA-conversion and digital outputs are configured to
operate in the frequency ranges Single Speed, Double Speed or Quad Speed.
Single Speed
All outputs carry a signal in the range of 32 kHz up to 48 kHz.
DS (Double Speed)
The AES outputs 1-8 carry a signal in the range of 64 kHz up to 96 kHz. ADAT and MADI stay
at no higher than 48 kHz, with the data transmitted in the S/MUX format.
QS (Quad Speed)
The AES outputs 1-8 carry a signal in the range of 176.4 kHz up to 192 kHz. ADAT and MADI
stay at no higher than 48 kHz, with the data transmitted in the S/MUX4 format. Therefore ADAT
is limited to 4 channels (2 per optical output) in this mode.
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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