The new Dolby E option is now available. This option release adds significant Dolby -E audio analysis features to the Sx range. These include metadata analysis, Peak (levels) and logging. Note: De-coded audio is not part of this option. The new option allows the display of Dolby-E meta data present in a selected audio stream and determines whether the Dolby-E packet is timed correctly on the SDI video stream. The Dolby-E may be monitored from any of the SDI input embedded audio channel pairs or the AES input.  In use the new start menu window displays both the V Bit information and PCM values along with a snapshot of the Dolby E metadata if a Dolby E signal is present. Using the Signal Information Menu > Dolby E will present the full analysis display which forms the major analytical tool for this release.  The Dolby-E metadata screen above carries primary information including signal source, Dolby-E ‘guard band’ timing, CRC errors, program channel and metadata detail. The characters shown in white will only be presented when a Dolby-E signal is introduced into the unit.  The peak audio levels included in the Dolby-E meta data packet are displayed on the Analyser>Audio Meters page. Select the appropriate set of meters to display Dolby levels which will follow the selected Dolby-E source. Logging for Dolby E errors, Timing, Common metadata and Program metadata can be controlled form the Logging>Log set-up menu. Dolby E analysis Option code PHSXOBD (Basic Dolby E) NOTE: USING A DOLBY DM100 WITH AN Sx instrument. Following beta tests with our customers, the following note must be observed when working with a Dolby DM100. The DM100 generator must be locked to 'Video Reference 48kHz'. This is found on the Setup- I/O Control – Gen Clock Source Menu. If this is NOT set, the AES input will not be locked and errors will be detected as the AES input runs in and out of lock. The DM100 AES output needs to be setup to generate Non-Audio AES data or the sample rate converter in the Sx will corrupt the data. Go to Setup-AES3 Output-Audio Mode and set to 'Non-Audio' mode. |
