Digicheck Windows - RME Audio MADIface USB User Manual

Using more than one MADIface the USB bus will be overloaded. To prevent this connect all units
to different USB busses. This should be possible with up to two units even without further hard-
ware as many popular USB 2.0 interfaces come as twins, which can be checked in the Device
Manager as follows:
•
Connect the MADIface USB to a USB port
•
Start the Device Manager, View set to 'Devices by Connection'
•
Expand ACPI x86-based PC, Microsoft ACPI compatible System, PCI bus
Here you usually find two entries of a USB2 Enhanced Host Controller. All USB devices are
connected via a Root Hub, the MADIface USB will show up here too. By a simple reconnection
to other ports this view lets you check to which one of the two controllers the MADIface is con-
nected to. And with two units, if they use the same controller or not.
This information can also be used to make sure that an external USB hard drive will not interfere
with the MADIface USB, by ensuring its connection to a different bus (controller).
Especially with laptops it can be seen that all internal devices and all sockets are connected to
the same controller, and that the second controller is not used at all. Then all units operate on
the same bus and fight against each other for bandwidth.

11. DIGICheck Windows

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 5.81 operates as multi-client ASIO host, therefore can
be used in parallel to any software, with both inputs and outputs (!). The following is a short
summary of the currently available functions:
• Level Meter. High precision 24-bit resolution, 2/8/64 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.
Vertical and horizontal mode. Slow RMS and RLB weighting filter. Supports visualization ac-
cording 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 MADIface hardware.
• Vector Audio Scope. World wide unique Goniometer showing the typical afterglow of a
oscilloscope-tube. Includes Correlation meter and level 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.
• Surround Audio Scope. Professional Surround Level Meter with extended correlation
analysis, ITU weighting and ITU summing meter.
• ITU1770/EBU R128 Meter. For standardized loudness measurements.
• Bit Statistics & Noise. Shows the true resolution of audio signals as well as errors and DC
offset. Includes Signal to Noise measurement in dB and dBA, plus DC measurement.
• Channel Status Display. Detailed analysis and display of Channel Status data within the
MADI stream.
• Global Record. Long-term recording of all channels at lowest system load.
• 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 setup.exe.
Follow the instructions prompted on the screen.
DIGICheck is constantly updated. The latest version is always available on our website
www.rme-audio.com, section Downloads / DIGICheck.
User's Guide MADIface USB © RME
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