Verance is a pioneer in the development and commercialization of digital watermarking technology and is recognized as a technology leader, having had its audio watermark technology identified as the most effective audio watermark in each of the five open technology evaluations that have been conducted.*
Verance's audio watermarking technology embeds digital codes into audio recordings or the audio portion of audiovisual content by introducing small information-carrying alterations, statistically imperceptible to the human ear, designed to survive and remain detectable throughout the useful life of the content. Verance's watermarking technology is compatible with all commercial recording and transmission methods, both digital and analog, and permits the embedded information to be accurately recovered from the embedded audio, even after audio processing, distribution and broadcast.
Verance audio watermark technology has been demonstrated to meet the most rigorous demands for preserving perceptual quality in high-resolution audio applications.
Implementations have been shown in independently held audio quality evaluations to meet the ITU B.S. 1116-1 criteria for perceptual transparency through double-blind listening tests using leading movie and music industry sound mixers and mastering engineers.
Hundreds of high-resolution DVD-Audio and digital cinema titles have been released to rave audiophile reviews, including the 2005 GRAMMY award winner for “Best Surround Sound Album”, Dire Straits’ “Brothers in Arms – 20th Anniversary Edition” and the 2007 Oscar winner for “Best Sound Editing”, “The Bourne Ultimatum”.
Verance audio watermarks can survive typical distortions introduced during the production, duplication, distribution, broadcast, and consumer handling of recorded content.
The Verance audio watermarking technology allows for multiple layers of watermarked data that can be detected and decoded by different application-specific watermark decoders. These serve a variety of market needs simultaneously through the deployment of multiple independent watermarks including copy and usage control data, content identification data and specific transactional data.
Verance's watermarking technology complements other content rights management and security systems such as encryption and digital containers and is compatible with a wide range of analog and digital, physical and electronic formats for distribution and storage of multimedia content.
Verance’s watermark technology is resistant to forgery and unauthorized alteration, decoding and erasure.
Verance's watermark technology enables information to be transmitted and decoded in short segments of audio.
Verance's watermark technology allows multiple layers of independent non-interfering watermarks to be embedded simultaneously into the same audio content for different applications.
Verance's watermarking technology requires modest processing and circuitry resources and can be implemented for low device cost in high-volume consumer products such as portable music players and recorders, CD, DVD and Blu-ray players and recorders, mobile communication devices, and Personal Digital Assistants (PDAs).
What Makes Verance Audio Watermarking Unique
In contrast to some technologies, such as digital file formats or Digital Rights Management systems, that provide metadata alongside media content in a digital header or information subcarrier, Verance’s embedded audio watermarking technology remains present and detectable even if the content is converted to another format, transmitted over a broadcast channel, or even played back from a speaker and recorded via microphone.
In contrast to other technologies, such as “fingerprinting,” that rely on pattern matching against a database of previously analyzed works to identify content, Verance’s audio watermark:
- can be detected and interpreted locally, without reference to an external database;
- provides a precise and immediate result, without a computationally intensive search;
- scales easily, delivering both extremely low and constant processing load and false detection rate regardless of the population of identifiable works;
- enables different copies of identical works to be distinguished.
* IFPI MUSE Project, 1997; 4C Entity, CPSA Watermark Evaluation, 1998; SDMI Phase 1 Screen Evaluation, 1999; SDMI Phase 2 Screen Evaluation, 2000; JASRAC STEP 2001 Certification, 2001.