PRESONUS AudioBox Stereo Quick Start Manual page 259

"The K-20 meter is for use with wide dynamic-range material, e.g., large theater mixes, 'daring
home theater' mixes, audiophile music, classical (symphonic) music, hopefully future
'audiophile' pop music mixed in 5.1, and so on. The K-14 meter is for the vast majority of high-
fidelity productions for the home, e.g., home theater and pop music (which includes the wide
variety of moderately compressed music, from folk music to hard rock). And the K-12 meter is
for productions to be dedicated for broadcast."
To switch to any K-System meter, [Right]/[Control]-click on any Peak/RMS meter and choose
an option from the menu.
When using any of the three K-System scales, the 0 VU mark should be calibrated to 85 dB SPL
from your monitors, which you should measure with an SPL meter. For instance, playing back
a -14 dBFS sine wave in Studio One while using the K-14 scale will cause the meter to read 0
VU for both the peak and average levels, and your monitors should be adjusted so that the SPL
meter at the listening position reads 85 dB SPL.
9.4.5 System Performance Metering
You can monitor system performance in the Performance Monitor, which can be a
tremendous help when troubleshooting performance issues. Open the Performance Monitor
by clicking on the CPU meter in the Transport or by using the View/Performance Monitor
menu. The following can be monitored:
CPU: This measure the amount of the CPU time allocated by the operating system that
•
Studio One is actually using.
Disk: A measure of disk usage, which will be affected when writing cache files, reading
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and writing audio files, and so on.
RAM (32-bit application only): A measure of the total RAM used by Studio One.
•
Instruments: The amount of the total CPU being used by virtual instruments.
•
Automation: The amount of the total CPU being used by the automation system.
•
Cache:
•
o
Used: The total size in bytes of the cache currently in use.
o
Total: The total size in bytes of written cache for the current Song or Project.
o
Show Cache Folder: Click on this to view the folder where all cache files are
stored for the current Song or Project.
o
Cleanup Cache: Click on this to delete all cache files that are not currently in
use.
Show Devices: Check this option to expose a list of all devices, including effects and
•
instruments, that are loaded in the Song or Project. You'll see a measure of the total
CPU used by each device.
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