Show Phase Meters
Phase meters may be displayed below the PPMs, in both the standard view and the surround sound view, to provide a quick visual report of the correlation between the audio data in the two channels that make up the stereo pair.
Peak Hold
When selected, Peak Hold markers are included in the display. Note: These markers normally show the highest value achieved over a period of 1 second. They can be switched to show the highest value achieved overall by selecting the Infinite Hold option.
Dolby-E Audio PPMs
Dolby-E encoded audio and the associated metadata are typically carried on a pair of embedded audio channels. The presence of Dolby-E audio therefore affects the display seen in the Embedded Audio PPMs window, where the channels on which the Dolby data is being transmitted are identified by the in-bar message ‘DATA’.
With the Advanced Audio and Dolby-E options, OmniTek XR includes a dedicated Dolby Audio PPMs display, through which it shows the audio levels that will ultimately be delivered on the different channels. This information is taken directly from the metering information encoded within the Dolby data: the audio itself is not processed in any way. This window may be called up either from the Window menu, where the different PPMs windows each have a separate entry, or it may be called up by clicking on the Audio PPMs icon on the main (Window) toolbar, then selecting Dolby-Efrom the short menu that then appears.
The Dolby PPMs display is very similar to the Embedded PPMs display, except that there is no option to select a surround-sound view as the presentation of the channels as mono, stereo or surround-sound channels (or as a combination of these) is pre- determined as part of the Dolby data. Also there is currently no facility to present phase information about any channel pair.
Page 94 | OmniTek XR User Guide, Software Release 2.3 |
