Linear Acoustic was founded in 2001 with the introduction of the OCTiMAX 5.1 audio processor. With the onset of digital television came myriad problems involving loudness and digital audio control. Linear Acoustic turned their attentions to solving these problems at every stage of the digital audio chain and soon developed a product range that made digital broadcast sound and work as it should.
Audio over IP (AoIP) has been embraced by the radio side of broadcasting for many years where the myriad advantages of networked audio via the Livewire+ AES67 standard is well known. Now, AoIP is available for television audio thanks to Linear Acoustic AERO.soft™. The Linear Acoustic SDI xNode de-embeds two separate HD/SD-SDI inputs, converts it to up to 16 channels of Livewire+ AES67 audio, makes it available for processing, upmixing, and encoding in the brand-new AERO.soft Processing Engine, and then re-embeds the audio into two independent SDI outputs. This provides unmatched flexibility, scalability and channel density.
In 2010, Linear received a Technical Emmy® for "The Pioneering Development of an Audio/Metadata Processor for Conforming Audio to the ATSC Standard," and has provided upmixing, loudness metering, encoding products, and technical support for NBC’s coverage of the 2008 Bejing Summer Games, the 2010 Vancouver Winter Games, the London 2012 Summer Games, the 2014 Sochi Winter Games, and most recently, the 2016 Summer games in Rio.
Minnetonka Audio and Linear Acoustic are both part of the foundation of the TV Solutions Group of the Telos Alliance. More information on the TV Solutions Group is available here. For general sales inquiries, contact Inquiry@TelosAlliance.com. For television technical support, please e-mail support@linearacoustic.com or call +1-717-735-3611. To locate a dealer for Linear Acoustic or other Telos Alliance brands, visit the Telos Alliance Dealer Directory.
AoIP for Video
The SDI xNode brings HD/SD-SDI signals into the Axia Livewire AoIP (audio over IP) domain for use in audio processing or other applications.
TV Loudness Control
AERO.2000 - Audio/Loudness Manager
A 2RU loudness management platform with front panel controls and color display for hosting Linear Acoustic® AEROMAX® processing, UPMAX®-II upmixing/downmixing, Dolby® coding, and Nielsen® watermark encoding.
AERO.100 - DTV Audio Processor
A compact and space-efficient 1RU loudness management platform for hosting Linear Acoustic® AEROMAX® processing, UPMAX®-II upmixing/downmixing, Dolby® coding, and Nielsen® watermark encoding.
Renowned Linear Acoustic loudness control and upmixing for compliance and viewer-pleasing quality, but with incredible cost-savings for PCM-only applications.
Metering & Monitoring
AMS Authoring & Monitoring System
Linear Acoustic AMS Authoring and Monitoring System is a comprehensive solution for real-time authoring, rendering, and monitoring of advanced audio programs for the ATSC 3.0 Digital Television System.
LQ-1000 - Loudness Quality Monitor
Comprehensive ITU-R BS.1770 and EBU R128 loudness and peak level metering and logging for eight channels (5.1+2) plus downmix via AES or HD-SD/SDI audio.
Upmixing
UPMAX v4-D - Surroundfield Controller
Drawing upon the success of its predecessors, UPMAX v4-D produces engaging 5.1-channel audio from two- and three-channel sources with ease and seamlessly transitions between discrete and upmixed audio.
Metadata & Tools
MT2000 - Multichannel Bitstream Analyzer
A portable, handheld diagnostic tool that can monitor and generate Dolby Digital, Dolby Digital Plus, Dolby E, and PCM bitstreams anytime, anywhere.
Legacy Products
- AERO.100 Spanish language video
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Helping Broadcasters Keep Their Eye on the Shifting Broadcast Universe
Tim Carroll and Mike Richardson discuss in this video how to help Broadcasters stay up to date with the changes in the world of broadcast.
- Linear Acoustic 10 Year Anniversary
- Linear Acoustic at the 2010 Winter Olympic Games
- Linear Acoustic University Loudness Webinar
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MT2000 vs DM100 Comparison Chart
Comparison chart for the Dolby DM100 analyzer versus Linear Acoustic MT2000
- FAQ's About the CALM Act
- Updating Television Broadcast Communication Using SIP, VoIP, and AoIP
- Metadata Functional Block Diagram for Dolby Digital (AC-3) Encoders
- Master Control Operations with Multichannel Audio
- Effective Wideband Processing: Magic or Myth?
- A/V Synchronization: Defining the Problem and Implementing Solutions
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ATSC 3.0 Audio: A Big Bet?
TV Technology article featuring Linear Acoustic founder and Telos Alliance CTO Tim Carroll
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TV Technology - Get Ready for Next-Gen Audio
Mary Gruszka discusses the "sea change" of television audio.
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Audio for Television: The Big Picture
Linear Acoustic President and Founder, Tim Carroll, gives a brief history of television audio.
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A Closer Look at Audio Metadata
An explanation of audio metadata, including a look at Dialog Level (dialnorm), Dynamic Range Control (DRC), and Downmixing.
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Audio Metadata: You Can Get There from Here
A more in-depth look at how audio metadata is created and distributed.
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Hearst Television Chooses Linear Acoustic
Joe Addalia, Director of Technology Projects for Hearst Television, was tasked with making sure all of his company's stations are providing CALM-compliant audio to those viewers.
- Linear Acoustic Helps Nice Shoes Keep CALM
- Linear Acoustic LQ-1000 Chosen for Presidential Debates
- Joel Singer Keeps the Grammys Compliant with Linear Acoustic LQ-1