Allen & Heath CQ-20B Ultracompact 20-Channel Digital Mixer (Rackmount/Stagebox) - Manual (Page 118)

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118 User Guide
V1.1.0 Issue 1
Stereo Playback
The bottom section of the screen is for playback of audio from USB-A storage.
Select Track - Select the track to be played.
Playback Mode – Options include Play All (and stop), Play Single (and stop),
Repeat All (loop through all tracks) and Repeat Single (loop a single track).
Transport Control – Use to Play/Pause, Stop or skip to Previous/Next. Use the
circular playback position marker at the very bottom of the screen to jump to a
specific point in the track.
Refer to the information box for details such as elapsed/remaining recording time
and errors detected during the recording.
Record/Playback Priority
Stereo USB playback signal will be sent to the dedicated stereo USB Input channel
and will take priority over signal from USB-B. When stereo recording/playback is in
progress, it is not possible to use SD record/playback or store/recall data from
USB storage.
Folders, files and formats
The USB device must be formatted to FAT32. This can be carried out using a
computer, but it is best to format a drive using the CQ before use.
 Format connected storage in the HOME / SYSTEM / USB and SD (symbols) screen.
Recordings are made to the AHCQ\USBREC folder.
Stereo recordings are made to stereo interleaved 24bit uncompressed *.WAV files,
at the sample rate set in the
CONFIG / USB/SD/BT / USB/SD screen.
The CQ can playback stereo files that were recorded on the CQ, or mono/stereo,
44.1/48/96kHz, 16/24bit *.WAV files from the AHCQ\USBREC folder.
Buffer Usage
Buffer usage meters indicate the performance of the connected storage device. If
buffers are filled, data will be lost and an error will be counted.
Length of recording
The maximum length of a stereo recording is determined by the maximum file size
of 4GB, which equates to approximately 2 hrs at 96kHz or 4 hrs at 48kHz.