Oregon Public Broadcasting Installs Linear Acoustic Processor

Portland, OR (October 4, 2005)--Linear Acoustic has supplied an OCTiMAX 5.1 Digital Television Audio Processor to Oregon Public Broadcasting, Portland, for installation at KOPB-HD within a rebuilt Master Control.
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Portland, OR (October 4, 2005)--Linear Acoustic has supplied an OCTiMAX 5.1 Digital Television Audio Processor to Oregon Public Broadcasting, Portland, for installation at KOPB-HD within a rebuilt Master Control.

According to KOPB-HD's Director of Engineering Network Center, Don McKay, "We specified the new unit to ensure seamless transmission of surround-sound audio for our High-Definition programming, even when we have two-channel material. In addition to providing multichannel audio processing for the station's SD and HD audio paths, the OCTiMAX 5.1 automatically detects a stereo source and up-mixes it to full 5.1-channel surround--the results are impressive."

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 also fully mono, stereo and matrix surround downmix compatible.

"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," considered 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- plus 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 added. Advanced multiband source noise reduction is available to improve the sound of legacy films and older television programs.

Linear Acoustic
www.linearacoustic.com