Dolby Laboratories Licensing Corporation

Dolby International Ab

David Matthew Fischer

Timothy James Eggerding

Adam Christopher Noel

Christian Wolff

Alan Jeffrey Seefeldt

Antonio Mateos Sole

Sripal S Mehta

Joshua Brandon Lando

Giulio Cengarle

Daniel Arteaga

Lianwu Chen

Davide Scaini

Ziyu Yang

Chunmao Zhang

David S McGrath

Lie Lu

Adam Scott Koniak

Philip Nicol

Warren Mansfield

Sergio Martinez

Kevin Lai

Eugene Edward Radzik

Benjamin George Webster

Bartosz Budzanowski

Tomasz Bartczak

David S Mcgrath

An apparatus and method of blind detection of binauralized audio. If the input content is detected as binaural, a second binauralization may be avoided. In this manner, the user experience avoids audio artifacts introduced by multiple binauralizations.

Blind detection of binauralized stereo content

An apparatus and method of interfacing between a source media device and a destination media device. A wireless module passes through an audio signal from the source device to an output device, and transmits a wireless signal to a wireless device that outputs the audio signal. In this manner, the number of devices used for the connections may be reduced.

Audio connection and transmission device

Embodiments are described for a method of simultaneously localizing a set of speakers and microphones, having only the times of arrival between each of the speakers and microphones. An autodiscovery process uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.

Automatic discovery and localization of speaker locations in surround sound systems

A system and method of providing a signal to wireless speakers. An audio stick connects to a source device and provides the audio signal to the wireless speakers. The audio stick combines the functionality of two separate devices: an audio receiver device and a transmitter device for the wireless speakers.

Audio stick for controlling wireless speakers

An apparatus, method and system for connecting High-Definition Multimedia Interface (HDMI) devices. A loopback device connects between a first source device and a sink device on a first connection; a second source device connects to the sink device on a second connection. The loopback device manages the first connection, passes transition-minimized differential signaling (TMDS) or fixed-rate link (FRL) signals through to the sink device, and outputs audio received from the sink device on the audio return channel (ARC) or enhanced audio return channel (eARC). In this manner, audio that originates from any source device may be output without requiring a direct connection to the loopback device.

Audio device for HDMI

Embodiments are described for a method for localizing a set of speakers () and microphones (), having only the times of arrival between each of the speakers and microphones. An autodiscovery process () uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.

Systems and methods are described for an adaptive audio system that renders reflected sound for adaptive audio systems in different ways depending on the orientation of at least one speaker in a set of speakers. A speaker of the system may comprise an integrated speaker having front-firing and upward-firing drivers, a sensor to determine the orientation of the speaker (e.g., horizontal or vertical) and a transceiver and control unit that transmits the orientation to a decoder and receives updated speaker feeds from the renderer based on the orientation.

Dual-orientation speaker for rendering immersive audio content

A system and method of interfacing between a source media device, a destination media device and wireless speakers. A media stick provides the output video signal to the destination media device via a wired signal path, and provides the output audio signal to the wireless speakers via a wireless signal path. In this manner, a user may use a single device&#x2014;the media stick&#x2014;as both a connector between the devices and to provide the audio signal to the wireless speakers.

Media stick for controlling wireless speakers

Embodiments are directed processing adaptive audio content by determining an audio type as one of channel-based audio and object-based audio for each audio segment of an adaptive audio bitstream, tagging the each audio segment with a metadata definition indicating the audio type of the corresponding audio segment, processing audio segments tagged as channel-based audio in a channel audio renderer component, and processing audio segments tagged as object-based audio in an object audio renderer component that is distinct from the channel audio renderer component. Object-based audio is rendered through an object audio renderer interface that dynamically adjusts processing block sizes of the object audio segments based on timing and alignment of metadata updates and maximum/minimum block size parameters.

Audio processing systems and methods

Improved methods and devices for processing low-frequency audio data are provided. A bass extraction process may involve applying low-pass filters to received audio object signals, to produce extracted low-frequency audio signals. The bass extraction process may be performed prior to a process of rendering audio objects into speaker feed signals. A bass management process may involve routing the extracted low-frequency audio signals to the one or more speakers capable of reproducing low-frequency audio signals.

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San Francisco, CA, United States of America

David Matthew Fischer