Patent classifications
H04R2205/024
System and method for performing automatic sweet spot calibration for beamforming loudspeakers
A system including an audio source configured to transmit a first stimulus signal to one of a first beamforming loudspeaker assembly and a second beamforming loudspeaker assembly to play back an audio output and to receive the audio output from the one of the first beamforming loudspeaker assembly and the second beamforming loudspeaker assembly. The audio source is configured to determine a first distance between a first beamforming loudspeaker assembly and a second beamforming loudspeaker assembly and to determine a second distance between the audio source and the first beamforming loudspeaker assembly. The audio source is configured to determine a third distance between the audio source and the second beamforming loudspeaker assembly and to determine a location for transmitting the audio output from each of the first beamforming loudspeaker assembly and the second beamforming loudspeaker assembly based at least on the first distance, the second distance, and the third distance.
AUDIO SYSTEM
Various embodiments provide for an audio system and methods for facilitating a group-listening user experience. A first audio device and a second audio device may each include at least one speaker. The first audio device and the second audio device may be selectively coupled to each other via one or more coupling devices. In such embodiments, the respective speaker or speakers of each of the first and second audio devices may be configured to direct sound into the at least partial acoustic chamber formed by the first and second audio devices. The at least partial acoustic chamber may be configured to have a shape that is suitable for mixing, combining, blending, acoustically amplifying, and/or directing the sound from the speakers of the first and second audio devices in a direction that is away from the audio system.
Automatic discovery and localization of speaker locations in surround sound systems
Embodiments are described for a method for localizing a set of speakers (106) and microphones (108), having only the times of arrival between each of the speakers and microphones. An autodiscovery process (107) 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.
ACOUSTIC DEVICE
An acoustic device including: a first speaker box that a first speaker unit is arranged; a second speaker box that a second speaker unit is arranged; and an enclosure that the first speaker box and the second speaker box are arranged at an inside, wherein the enclosure has an adjustment part which adjust an interval between the first speaker box and the second speaker box.
Method and apparatus for an ultrasonic emitter system floor audio unit
Methods and systems are provided for audio devices with enhanced directional operations. A user of an audio system may be prompted to provide an audio input. Once received, the audio input may be processed, and based on processing of the audio input positioning related information associated with the user may be generated. Outputting of an audio output in the audio system may then be controlled based on the positioning related information. Controlling the outputting of the audio output may include configuring at least one audio output related parameter or function for optimizing directionality of the audio output based on the positioning related information.
SYSTEM AND METHOD FOR LOUDSPEAKER POSITION ESTIMATION
Embodiments of systems and methods are described for estimating a position of a loudspeaker and notifying a listener if an abnormal condition is detected, such as an incorrect loudspeaker orientation or an obstruction in a path between the loudspeaker and a microphone array. For example, a front component of a multi-channel surround sound system may include the microphone array and a position estimation engine. The position estimation engine may estimate the distance between the loudspeaker and the microphone array. In addition, the position estimation engine may estimate an angle of the loudspeaker using a first technique. The position estimation engine may also estimate an angle of the loudspeaker using a second technique. The two angles can be processed to determine whether the abnormal condition exists. If the abnormal condition exists, a listener can be notified and be provided with suggestions for resolving the issue in a graphical user interface.
Audio processing apparatus with channel remapper and object renderer
Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.
MULTI-ZONE AUDIO SYSTEM WITH INTEGRATED CROSS-ZONE AND ZONE-SPECIFIC TUNING
The technology described in this document can be embodied in a method that includes receiving information indicative of a volume setting corresponding to each listening zone of a plurality of listening zones. The method also includes generating a zone-specific adjustment signal for each of the plurality of listening zones, wherein the zone-specific adjustment signal for a given listening zone accounts for a cross-zone effect associated with a volume setting corresponding to another listening zone, and is configured to adjust an output of corresponding zone-specific circuitry. The method further includes generating an additional adjustment signal configured to adjust an output of a cross-zone equalization filter. The output of the cross-zone equalization filter is configured to generate a target acoustic distribution across multiple listening zones. The method also includes generating an output of an acoustic transducer of the multi-zone audio system based on the zone-specific adjustment signals and the additional adjustment signal.
APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING
An apparatus for generating a description of a combined audio scene, includes: an input interface for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.
SOUND SYSTEM WITH AUTOMATICALLY ADJUSTABLE RELATIVE DRIVER ORIENTATION
A sound system with a plurality of speakers is shown and described. The orientation of a second subset of the speakers is automatically adjustable relative to the orientation of a first subset of speakers. In certain examples, the system detects whether the audio signals it receives include up-firing content and adjusts the relative orientations when such content is provided. The sound system is also configured to calculate a desired degree of rotation for the speakers in the second subset based on the geometry of the room in which the sound system is located and the location of the listener in the room.