At NAB, Dolby Laboratories (booth SU10443) will showcase its latest audio solutions for HDTV and DTV terrestrial, cable and satellite services, including the debut of the new LM100 Loudness Meter software remote application, a new enhanced version of Dolby Digital for future broadcast systems, Dolby Pro Logic II for stereo infrastructures and Dolby Digital 5.1 content for cable/satellite/terrestrial broadcasting.
The new LM100 software remote application will assist post-production, television broadcast, cable systems and satellite providers with advanced loudness measurement, logging features and enhanced error reporting, enabling them to address subjective loudness issues. Applications include network QC, post-production, DVD authoring, broadcast on-air monitoring/logging, video-on-demand (VOD) encoding and satellite turnaround facilities.
The software's features enable users to continuously log short- and long-term speech loudness values in real time while storing the loudness history data for later analysis. The LM100 remote application also includes an event log that allows the user to continuously monitor/log several different types of input status, alarm and error conditions, including Dolby Digital (AC-3) cyclic redundancy code (CRC) errors, Dolby E CRC errors, loudness above and below threshold, clipping, input loss and audio metadata.
For cable head-end applications, the LM100 remote application allows users to control both the LM100-NTSC's tuner module and digital cable set-top box tuners for "hands-off" analysis and logging for every channel on their cable system (via a third-party translator, sold separately). This gives cable personnel the ability to continuously and objectively evaluate how consistent loudness levels are from channel to channel within their services.
The Dolby LM100 software remote application will be packaged with both the LM100-LTC and LM100-NTSC starting in the second quarter of 2004.
Dolby personnel will also be making numerous presentations during the show.
On Friday, April 16, from 4 to 5 p.m. at the PBS Technology Conference (MGM Grand Hotel, breakout room #2), panelist Mike Babbitt, Dolby Laboratories’ broadcast field service engineer, will discuss managing multichannel audio.
Saturday, April 17, The ATSC Digital Television University, 4:45 p.m. to 5:30 p.m. at the Las Vegas Convention Center, N112: "Tutorial on Enhanced AC-3 Audio Coding," featuring Craig Todd, senior member of Dolby’s technical staff.
Sunday, April 18, MPEG Forum 11:20 a.m. to 12:10 p.m. at the Las Vegas Convention Center, S221: "Advanced Video and Audio Coding: A Technology Provider's Perspective," with panelist Julia Cutler, director of technology strategy, Dolby Laboratories Licensing Corporation.
Tuesday, April 20, Quality Control for DTV, 3 p.m. to 3:30 p.m. (Las Vegas Convention Center, N112): "The History of Lip Sync or, How Did Things Get This Bad?" with Ken Hunold, broadcast applications engineer at Dolby Laboratories.
Tuesday, April 20, Quality Control for DTV, 4:30 p.m. to 5 p.m. (Las Vegas Convention Center, N112): "Intelligent Loudness Measurement and Control: What Satisfies Your Listeners and Your Set-Top Boxes?" featuring Jeffrey Riedmiller, broadcast product manager at Dolby Laboratories, and Ron Wright of Time Warner Cable.