The surround/stereo television loudness controller builds on Orban's 30+ year experience in television audio processing to provide audibly transparent automatic loudness control and dialog intelligibility control for one surround program (up to 7.1) or four stereo (stereo) programs. The stereo processing can operate in dual-mono mode, so it can process four subchannels in stereo or eight subchannels in mono. Put in-line and operated correctly, the OPTIMOD TV 6585 will ensure that loudness meets the requirements of the CALM Act and EBU R-128. The OPTIMOD TV 6585 is Orban's second-generation surround/2.0 processor offers standard AES3id and SD, HD-SDI (3G) input/output and audio routing capabilities that include support for optional Dolby-E encoding and decoding. Dual redundant power supplies help ensure maximum uptime where a relay provides hard-wire safety bypass from the SDI input to the SDI output in case of hardware failure. The OPTIMOD TV 6585 is dialnorm-aware. Loudness control is excellent when measured by the ITU BS.1770 standard (as specified in ATSC A/85:2009) or by the OPTIMOD TV 6585's built-in CBS loudness meters. When properly installed and set up, the OPTIMOD TV 6585 will automatically make a station compliant with the CALM Act or EBU R128. In stereo mode, the four stereo processors can be made pre-emphasis aware, allowing the OPTIMOD TV 6585 to be purchased for immediate use with analog transmitters with the assurance that it will provide no-compromise processing for digital transmissions when the need arises. A second use for the stereo processors is processing up to four different languages in DTV program streams.
An LCD and full-time LED meters make setup, adjustment and programming of the OPTIMOD TV 6585 easy - you can always see the metering while you're adjusting the processor. Navigation is by dedicated buttons, soft buttons (whose functions are context-sensitive) and a large rotary knob. The LEDs show all metering functions of the processing structure (two-band or five-band) in use.