User Manual

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User’s Guide OctaMic XTC © RME
22. General
The OctaMic XTC operates in Class Compliant mode (UAC 2.0), a standard that is natively
supported by operating systems like iOS, Mac OS X and Linux. No proprietary drivers are re-
quired, the device will be directly recognized.
The OctaMic XTC is a universal and professional hardware frontend for Apple's iPad. The XTC
provides the iPad with the professional analog I/O connections it lacks: Superb microphone
preamps with AutoSet, professional balanced line inputs, instrument inputs, 2 hi-power head-
phone outputs, and all common digital interface ports - ADAT, AES and MADI. All this can be
used with up to 24 channels in and out simultaneously. Everything is available fully digital via
USB, in uncompromised quality with up to 192 kHz and 24-bit. And of course a Sysex-capable
double MIDI I/O.
The OctaMic XTC does not supply power to the iPad/iPhone. The latest Lightning to USB 3
Camera adapter from Apple includes a Lightning socket to connect the standard Apple power
supply, allowing to charge the i-device while it operates in Class Compliant mode with the Oc-
taMic XTC.
23. System requirements for iOS Operation
• Any Apple iPad with at least iOS 5 or an iPhone with at least iOS 7
• Apple iPad Camera Connection Kit or Lightning to USB adapter
24. Setup
Connect the USB cable to the Camera Connection Kit/Lightning adapter. Start the i-device and
plug the Kit/adapter into the i-device’s socket. If everything works as expected, the unit will be
used for all audio I/O. Audio playback in iTunes will automatically be performed by the OctaMic
XTC, using analog outputs 1/2 and 3/4.
Note
: The i-device’s volume control is inactive during USB operation.
25. Supported Inputs and Outputs
When connected to an iPad, the analog input 1 works with mono apps, inputs 1 and 2 with ste-
reo apps (both dual mono and stereo), and up to 8 inputs with multi-channel applications like
MultiTrack DAW and Music Studio. Garage Band supports all inputs, but only two at a time.
Auria and Cubasis can record all 24 inputs simultaneously.
Playback will use analog outputs 1 and 2, or even more channels if the app supports such op-
eration, like Auria and Cubasis, which allow to use all 24 output channels of the XTC.
In playback operation the XTC can optionally route the iPad playback channels 1/2 to outputs
Phones 1, Phones 2, ADAT, AES and MADI (menu Digital Routing).
In slave mode (with external clock) the XTC (and with it the iPad) will be synchronized to an
external digital sample rate if there is a valid digital input signal. With a wrong sample rate
heavy audio noise will occur. Without any digital input signal the XTC stays in master mode.
The current sample rate is the one set by Mac OS X or iOS (the app in use).