User`s guide

User's Guide Babyface © RME

18. Using more than one Babyface

OS X supports the usage of more than one audio device within an audio software. This is done

via the Core Audio function Aggregate Devices, which allows to combine several devices into

one. All units have to be in sync, i.e. have to receive valid sync information via a digital input

signal.

• If one of the Babyfaces is set to clock mode Master, all others have to be set to clock mode

Slave, and have to be synced from the master by feeding ADAT or SPDIF. The clock

modes of all units have to be set up correctly in the Babyface Settings dialog.

• If all units are fed with a synchronous clock, i.e. all units show Sync in their Settings dialog,

all channels can be used at once.

Note

: TotalMix is part of the hardware of each Babyface. Up to three mixers are available, but

these are separated and can't interchange data. Therefore a global mixer for all units is not

possible.

In real-world an operation of more than one Babyface makes no sense and is therefore not

actively supported by RME. The second unit would have to be synchronized using the optical

input. The result is an extension by only 2 analog record and 4 analog playback channels (plus

8 digital via ADAT Out). Much more sense makes the direct connection of an 8-channel con-

verter to the ADAT I/O of one Babyface, adding full 8 channels of record and playback.

19. DIGICheck Mac

The DIGICheck software is a unique utility developed for testing, measuring and analysing digi-

tal audio streams. Although this Windows software is fairly self-explanatory, it still includes a

comprehensive online help. DIGICheck 0.6 operates in parallel to any software, showing all

input data. The following is a short summary of the currently available functions:

• Level Meter. High precision 24-bit resolution, 2/10/28 channels. Application examples: Peak

level measurement, RMS level measurement, over-detection, phase correlation measure-

ment, dynamic range and signal-to-noise ratios, RMS to peak difference (loudness), long

term peak measurement, input check. Oversampling mode for levels higher than 0 dBFS.

Supports visualization according to the K-System.

• Hardware Level Meter for Input, Playback and Output. Reference Level Meter freely con-

figurable, causing near zero CPU load, because calculated from the Babyface hardware.

• Vector Audio Scope. World wide unique Goniometer showing the typical afterglow of a

oscilloscope-tube. Includes Correlation meter and level meter.

• Surround Audio Scope. Professional Surround Level Meter with extended correlation

analysis, ITU weighting and ITU summing meter.

• Spectral Analyser. World wide unique 10-, 20- or 30-band display in analog bandpass filter

technology. 192 kHz-capable!

• Totalyser. Spectral Analyser, Level Meter and Vector Audio Scope in a single window.

• Completely multi-client. Open as many measurement windows as you like, on any chan-

nels and inputs or outputs!

To install DIGICheck, go to the \DIGICheck directory on the RME Driver CD and run the in-

staller. Follow the instructions prompted on the screen.

DIGICheck is constantly updated. The latest version is always available on our website