The Leader Dolby E Analysis Option for Phabrix PHRXM-AE, AEE, AGE Module displays Dolby E metadata 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. Peak audio levels metering is also displayed.
Dolby E is an audio encoding and decoding technology that allows up to 8 channels of audio (mono, stereo, 5.1 or 7.1) for a primary program and optional ancillary programs. The 8 channels are compressed into a digital stream that can be transferred between compatible devices and stored on a standard stereo pair of audio tracks. The most elaborate mode in common use is Dolby 7.1 which uses all eight channels to provide surround sound. The Dolby E option enables checks to ensure that Dolby E has been created correctly and transferred transparently through the broadcast chain unaffected by routers/switchers, satellite links.
The metadata screen carries primary information including signal source, Dolby E ‘guard band’ timing, CRC errors, program channel and metadata detail. Peak audio levels included in the Dolby-E meta data packet are displayed allowing the user to select the appropriate set of meters to display Dolby levels which will follow the selected Dolby E source.
Logging for Dolby errors, timing, common metadata and program metadata can also be setup. Dolby E errors can be captured in the error log to allow analysis of the live data stream.