Thank you for choosing Sonoris Meter!
What is it?
With this plugin, you can accurately measure peak and loudness levels of audio signals, at one scale.
Besides a regular meter scale the Sonoris Meter supports the K-System, from Bob Katz, mastering engineer
and founder of Digido mastering studio. During the development period of this plugin Bob Katz was very
helpful in providing information. The end product closely follows the K-system specifications, including
Leq(A) loudness metering and bandlimited pink noise monitor calibration.
The Sonoris Meter features an oversampling mode. In this mode the meter catches intersample peaks that
can cause ear fatiguing sound when audio is played on consumer CD players. Many CD players have
inferior D/A converters with little headroom that will distort with samples above the clip level. These peaks
occur when the audio is clipped (read squashed / limited) or otherwise digitally manipulated (eg. VSTi's). In
oversampling mode the Sonoris Meter models the D/A conversion process and allows for maximizing the
level but avoiding this distortion.
At the bottom of the interface a correlation meter can be found. This meter enables the user to monitor the
phase relationship between the left and right channels.
About the plugin
All calculations are performed with 64 bit integer math except for the filters.
Basic Operation
Click on a button to active or deactivate the corresponding function. Controls can be changed with the mouse
by dragging up or down or by clicking on the small arrows. An added feature is the possibility to adjust the
controls with the mousewheel.
Clicking on the meter values above the meter bars resets them. If a clipping incident occurred, the clipping
indicator can be reset by clicking on it.
About this helpfile
This helpfile explains all settings and options, as well as basic K-System theory. For more in-depth
information please visit .www.digido.com
Have fun!
Copyright © Sonoris Audio Engineering 2008 – www.sonoris.nl 2/11