Fixes Loudness, Preserves Content

AMSTERDAM, NETHERLANDS — Linear Acoustic, the leading worldwide authority in DTV audio processing and transmission solutions, is introducing the CARBON™ Hybrid Metadata Loudness Controller at IBC 2009 (Stand 8.D29).

Loudness control and audio encoding are combined by a patent-pending hybrid process that allows infinitely variable adjustment between permanent and reversible control of source audio loudness and dynamic range. Capable of working with any audio codec that supports metadata, the premier version of Linear Acoustic CARBON maximizes the effectiveness of metadata within the Dolby® Digital (AC-3) system.

“This groundbreaking technology enables audio to be sent to consumers with broadcaster regulated control of loudness while still preserving the original audio content,” says Tim Carroll founder and president of Linear Acoustic. “This allows consumers to choose audio reproduction that matches their environment - from full surround sound systems to small kitchen TVs, to mobile or hand-held devices.”

Linear Acoustic CARBON accepts encoded or baseband PCM audio via AES or HD/SD-SDI connections, and optionally supports processing of audio at the transport stream level via DVB-ASI connections. MPTS via Gigabit Ethernet (GigE) will be supported for cable and satellite applications.

About Linear Acoustic:

Linear Acoustic is a leading authority in multichannel loudness control, upmixing, and distribution solutions for digital television. The company designs and manufactures the AERO range of audio processing solutions, e2™ (e-squared) multichannel audio backhaul and distribution, and MetaMAX metadata processing products and licenses key technologies to OEM partners. The company is actively involved in standards and practices creation within the ATSC and other international standards groups, is a member of the AES and IEEE, is a sustaining member of the Society of Motion Picture and Television Engineers (SMPTE), and is a premier member of the Sports Video Group. Linear Acoustic is also proud to have provided its UPMAX:neo™ 5.1-channel upmixer and technical services for NBC’s coverage of the 2008 Beijing Summer Games. Linear Acoustic is a member of the Telos group of companies along with Omnia and Axia. More information about Linear Acoustic is available at

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