ALLEN & HEATH DIGITAL MIXING SYSTEM User's Guide download pdf (Page 40)

Qu Mixer User Guide 40 AP9372 iss.4

7.5 Home Screen – Meters

This screen provides a convenient view of all channel,

mix and FX signal activity.

For optimum performance the loudest signals should

read into the yellow. If any red Peak meter flashes then

reduce the level of that signal to avoid possible

distortion. Increase levels if the meter readings are

consistently low.

The Qu-24 meters screen is shown here. Qu-32

provides two pages of meters. The Qu-16 does not

include Group and Matrix meters.

7.6 Home Screen – RTA

This screen displays a Real Time Analyser (RTA) which

analyses the frequency content of the audio signal

currently being monitored using the PAFL keys.

It splits the frequency into 31 third octave bands from

low 20Hz to high 20kHz, the same frequencies as used

on a graphic equaliser. The dominant ‘Peak Band’

frequency displays in red.

The RTA is a useful tool to help you identify problem

frequencies such as room resonance and feedback.

The iPad Qu-Pad app can also show a display of the

RTA peak band (most dominant frequency).

7.7 Home Screen – Qu-Drive (USB audio)

This opens screens associated with the USB stereo

and multitrack recording:

Note - Use the USB storage device with the Qu mixer

only. Do not use it for other applications.

* Format the hard drive on the Qu mixer before

starting to record. Use the Setup / Utility / Qu-Drive

screen. This clears the drive and sets up the Qu

directory structure.

Qu-Drive Stereo page – This screen presents

the controls for stereo recording to and playback from

a USB device plugged into the top panel Qu-Drive

port.

The blue Stop buttons light if the USB device is

recognised by the mixer. The controls are disabled if a

USB device is not plugged in or recognised.

Stereo Record – You can record to a USB

storage device plugged into Qu-Drive:

 Format = 48kHz, 24-bit, WAV file

 Data rate = 288 KB/sec, maximum 4 hours (4GB)

 Qu allocates a file name ‘QU-STnnn.WAV’ where

‘nnn’ increments from 001 to 999 starting at the

highest number +1 it finds on the USB device.

Note – Qu-Drive audio recording and

multitrack playback require the USB

storage device to support high sustained

transfer rates. Not all USB devices will

guarantee flawless performance. To find

out more please refer to the

‘Understanding Qu-Drive and USB’

document in the Qu Knowledgebase on

the Allen & Heath web site.

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ALLEN & HEATH DIGITAL MIXING SYSTEM User's Guide Page 40

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