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User's Guide Fireface UCX © RME

Input Status

Indicates for each input (Word, ADAT/SPDIF optical, SPDIF Coax.) whether there is a valid

signal (Lock, No Lock), or if there is a valid and synchronous signal (Sync). The third column

shows the sample frequency detected by the hardware (coarse recognition, 32 kHz, 44.1 kHz,

48 kHz etc.). In Clock Mode the clock reference is shown. See also chapter 37.1.

Bandwidth (only for the FireWire driver)

Allows to reduce the amount of bandwidth used on the FireWire bus. See chapter 37.4.

All channels (default) activates all 18 input and output channels.

Analog +SPDIF + ADAT 1-4 disables channels 15–18 (from ADAT).

Analog + SPDIF activates all 8 analog channels plus SPDIF.

Analog activates only the eight analog channels.

7.2 Settings Dialog - Pitch

Usually soundcards and audio interfaces generate their internal clock (master mode) by a

quartz. Therefore the internal clock can be set to 44.1 kHz or 48 kHz, but not to a value in be-

tween. SteadyClock, RME's sensational Low Jitter Clock System, is based on a Direct Digital

Synthesizer (DDS). This superior circuitry can generate nearly any frequency with highest pre-

cision.

DDS has been implemented into the Fireface with regard to the needs of professional video

applications, as well as to maximum flexibility. The section Pitch includes both a list of typical

video frequencies (so called pull up/pull down at 0.1% and 4%) and a fader to freely change the

basic sample rate in steps of 1 Hz (!) over a range of +/- 5%.

The Pitch function requires the Fireface to be in clock mode Master! The frequency setting

will only be applied to this one specific Fireface!

Changing the sample rate during record/playback often results in a loss of audio, or brings

up warning messages of the audio software. Therefore the desired sample rate should be

set at least coarsely before starting the software.

Coarse

Coarse modification in steps of 50 Hz

is done by clicking with the mouse to

the left and right of the fader knob.

Fine

Fine modification in steps of 1 Hz is

done by using the left/right cursor

keys.

Reset

Ctrl key plus left mouse click.

Application examples

Pitch allows for a simultaneous change of speed and tune during record and playback. From

alignment to other sources up to creative effects – everything is possible.

Pitch enables you to intentionally de-tune the complete DAW. This way, the DAW can match

instruments which have a wrong or unchangeable tuning.

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RME Audio Advanced Remote Control Guida Utente Pagina 15