Bang and Olufsen A/s

University of Surrey

Bruel and Kjaer Sound and Vibration Measurement A/s

Søren Bech

Martin Olsen

Jan Abildgaard Pedersen

Søren Borup Jensen

Martin Dewhirst

Francis Rumsey

Geoffrey Glen Martin

Martin Bo Møller

John Hammer Madsen

Jonathan Francombe

Woo-Keun Song

Pauli Minnaar

Slawomir Zielinski

Philip Jackson

Flemming Christensen

Robert Conetta

Sunish George

David Meares

Russell Mason

Benjamin Supper

Philip Coleman

Philip Justin Bletsoe Jackson

Marek Olik

The invention discloses a system applied to optimize the perceived sound quality in virtual sound zones. The system includes a method to establish a threshold of acceptability for an interfering audio programme on a target audio programme. The method includes physical parameters like target programme and interferer programme which combined with the scenarios: information gathering, entertainment and reading and/or working, constitutes modes of operations that may be processed and controlled by a system controller.

System for optimizing the perceived sound quality in virtual sound zones

The present invention relates to a method and corresponding system for predicting the perceived spatial quality of sound processing and reproducing equipment. According to the invention a device to be tested, a so-called device under test (DUT), is subjected to one or more test signals and the response of the device under test is provided to one or more means for deriving metrics, i.e. a higher-level representation of the raw data obtained from the device under test. The derived one or more metrics is/are provided to suitable predictor means that 'translates' the objective measure provided by the one or more metrics to a predicted perceived spatial quality. To this end said predictor means is calibrated using listening tests carried out on real listeners. By means of the invention there is thus provided an 'instrument' that can replace expensive and time consuming listening tests for instance during development of various audio processing or reproduction systems or methods.

System, devices and methods for predicting the perceived spatial quality of sound processing and reproducing equipment

The invention relates to simulation of sound fields in enclosures, for instance for application in listening tests, where test subjects assess the sound quality or other sound perception characteristics of the sound field. According to a specific embodiment, the system comprises a binaural synthesis portion which synthesizes sound for instance from a sound-reproduction equipment based on measured impulse responses of an actual room stored in a data base () and a binaural recording portion comprising a data basefor storing binaural recordings of other sound signals made in the room. Data from these databases are mixed () and reproduced by means of a headphone () provided with a head tracker () for tracking the movements of the listener's head. The invention furthermore comprises the use of cross-fading functions () to enable the dynamic listening conditions, where the movements of the listener's head are taken into account during the simulation process.

Recording, synthesis and reproduction of sound fields in an enclosure

A procedure and apparatus for generating automatic replay of recordings.

Procedure and apparatus for generating automatic replay of recordings

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Holstebro, Denmark

Søren Bech