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Liberty Corp. Purchases 16 Linear Acoustic Audio Processors

OCTiMAX 5.1 provides full level control and dialog adjustment for DTV stations (April 27, 2005)

Linear Acoustic has supplied a total of 16 OCTiMAX 5.1 Digital Television Audio Processors to Liberty Corporation for installation at the company's TV stations around the country. All systems are currently on-air providing multichannel audio from two-channel material, or handling 5.1 pass-through from network feeds.

"OCTiMAX also provides full level control and dialog adjustment for our DTV stations," confides Steve Smith, VP of Engineering/Technology for Liberty Corporation. "We had analyzed and tested many analog devices including multiband processors," Smith continues. "We have never found any digital audio processing equipment that could perform in both stereo-to-5.1 and original 5.1 HD TV audio applications until we discovered OCTiMAX. The resultant on-air audio from OCTiMAX is extremely realistic. The OCTiMAX even makes poor-sounding incoming 5.1 audio a pleasing experience."

The OCTiMAX 5.1 Digital Television Audio Processor combines multichannel, multiband dynamic processing with audio metadata functionality and local audio insertion capability. An Auto Voiceover feature allows straightforward insertion of voiceover audio, while an integral UpMax 5.1 Channel Surround-Field Synthesizer produces 5.1-channel audio from a standard two-channel mix, with full control of center width and surround depth. The resulting signal is fully mono, stereo and matrix surround compatible.

"The voiceover mode is very useful," Smith asserts. "There is nothing more annoying for a DTV audience than not being able to hear the central dialog channel in a stereo or 5.1-channel delivery. No other device we investigated offered such an easy-to-implement solution."

"The Linear Acoustic OCTiMAX 5.1 produces a clean, consistent and appropriately dynamic audio signal that is perfect for Dolby Digital AC-3, MPEG, or Windows Media encoding and transmission," considers Linear Acoustic president and founder, Tim Carroll.

OCTiMAX 5.1 also generates an Lt-Rt-compatible stereo downmix of the main program that can be used to feed legacy two-channel systems. The processing structures support eight mono programs, a 5.1 + 2 channel program and any format in between.

"The proprietary processing structure combines a two-band AGC with five bands of compression, look-ahead and peak limiting for each channel of audio," Carroll adds.

Advanced multiband source noise reduction is available to improve the sound of legacy films and older television programs. Linear Acoustic also offers a companion unit, UpMAX 2251 5.1 Channel Surround-Field Synthesizer, which produces 5.1-channel audio from a standard two-channel mix, with full control of center width and surround depth; in essence it is equivalent to the OCTiMAX 5.1 Digital Television Audio Processor, but without the dynamic range processing. As such, it is more applicable to production environments where the 5.1-channel output will be incorporated with other program sources prior to final broadcast processing.

About Liberty Corporation
A major group broadcaster, Liberty Corporation owns 15 network-affiliated television stations, including eight NBC affiliates (WAVE-TV, Louisville, KY; WIS-TV, Columbia, SC; WLBT-TV, Jackson, MS; WFIE-TV, Evansville, IN; WSFA-TV, Montgomery, AL; KCBD-TV, Lubbock, TX; WALB-TV, Albany, GA and KPLC-TV, Lake Charles, LA); five ABC affiliates (KLTV-TV, Tyler, TX; KTRE-TV, the satellite affiliate of KLTV in Lufkin, TX; WLOX-TV, Biloxi, MS; WWAY-TV, Wilmington, NC and KAIT-TV, Jonesboro, AR); and two CBS affiliates (WTOL-TV, Toledo, OH and KGBT-TV, Harlingen, TX). In addition, Liberty owns CableVantage Inc., a cable advertising sales subsidiary, and Broadcast Merchandising Company, a professional broadcast equipment dealership.

About Linear Acoustic
Linear Acoustic has been involved in projects with Dolby Laboratories, Sirius Satellite Radio, Microsoft, all major terrestrial networks, multiple local stations, HBO, Viacom (Showtime, MTV, etc.), Disney, Miramax, Sony Studios, and others. It is also actively involved in the ATSC, the NRSC and other industry organizations, as well as being members of the AES, IEEE and a sustaining member of the Society of Motion Picture and Television Engineers.

Linear Acoustic, Inc., 354 North Prince Street, Lancaster, PA 17603, USA.

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Related Keywords:Linear Acoustic, OCTiMAX, DTV, Liberty Corporation, multichannel audio, Dolby Digital, UpMAX 2251,

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