METHOD AND DEVICE FOR PROCESSING A BINAURAL RECORDING
Granted: November 9, 2023
Application Number:
20230360662
The present invention relates to a method and device for processing a first and a second audio signal representing an input binaural audio signal acquired by a binaural recording device. The present invention further relates to a method for rendering a binaural audio signal on a speaker system. The method for processing a binaural signal comprising extracting audio information from the first audio signal, computing a band gain for reducing noise in the first audio signal and applying the…
AUDIO DECODER AND DECODING METHOD
Granted: November 9, 2023
Application Number:
20230360659
A method for representing a second presentation of audio channels or objects as a data stream, the method comprising the steps of: (a) providing a set of base signals, the base signals representing a first presentation of the audio channels or objects; (b) providing a set of transformation parameters, the transformation parameters intended to transform the first presentation into the second presentation; the transformation parameters further being specified for at least two frequency…
MEDIA-COMPENSATED PASS-THROUGH AND MODE-SWITCHING
Granted: November 9, 2023
Application Number:
20230359430
Media input audio data corresponding to a media stream and microphone input audio data from at least one microphone may be received. A first level of at least one of a plurality of frequency bands of the media input audio data, as well as a second level of at least one of a plurality of frequency bands of the microphone input audio data, may be determined. Media output audio data and microphone output audio data may be produced by adjusting levels of one or more of the first and second…
METHOD, APPARATUS OR SYSTEMS FOR PROCESSING AUDIO OBJECTS
Granted: November 2, 2023
Application Number:
20230353970
Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals. These decorrelated large audio object audio signals may be associated with object locations, which may be stationary or time-varying locations. For example, the decorrelated large audio object audio signals may be rendered to virtual or actual speaker…
SCALABLE SYSTEMS FOR CONTROLLING COLOR MANAGEMENT COMPRISING VARYING LEVELS OF METADATA
Granted: November 2, 2023
Application Number:
20230353762
Several embodiments of scalable image processing systems and methods are disclosed herein whereby color management processing of source image data to be displayed on a target display is changed according to varying levels of metadata.
QUANTIZATION AND ENTROPY CODING OF PARAMETERS FOR A LOW LATENCY AUDIO CODEC
Granted: October 26, 2023
Application Number:
20230343346
Described is a method of frame-wise encoding metadata for an input signal, the metadata comprising a plurality of at least partially interrelated parameters calculable from the input signal. The method comprises, for each frame: iteratively performing, by using a looping process, steps of: determining a processing strategy from a plurality of processing strategies for calculating and quantizing the parameters; calculating and quantizing the parameters based on the determined processing…
BINAURAL DIALOGUE ENHANCEMENT
Granted: October 26, 2023
Application Number:
20230345192
Methods for dialogue enhancing audio content, comprising providing a first audio signal presentation of the audio components, providing a second audio signal presentation, receiving a set of dialogue estimation parameters configured to enable estimation of dialogue components from the first audio signal presentation, applying said set of dialogue estimation parameters to said first audio signal presentation, to form a dialogue presentation of the dialogue components; and combining the…
SIGNAL RESHAPING FOR HIGH DYNAMIC RANGE SIGNALS
Granted: October 26, 2023
Application Number:
20230345055
In a method to improve backwards compatibility when decoding high-dynamic range images coded in a wide color gamut (WCG) space which may not be compatible with legacy color spaces, hue and/or saturation values of images in an image database are computed for both a legacy color space (say, YCbCr-gamma) and a preferred WCG color space (say, IPT-PQ). Based on a cost function, a reshaped color space is computed so that the distance between the hue values in the legacy color space and rotated…
PROJECTION SYSTEM AND METHOD FOR UNIFORMITY CORRECTION
Granted: October 26, 2023
Application Number:
20230344970
A projection system and calibration method therefore relate to a light source configured to emit a light in response to an image data, an optical system configured to project the light emitted by the light source; receiving an input associated with a plurality of light values corresponding to a plurality of primary lightfields; converting the input associated with the plurality of light values to a plurality of projector primary color values; determining a gain map based on the plurality…
SYSTEM AND METHOD FOR NON-DESTRUCTIVELY NORMALIZING LOUDNESS OF AUDIO SIGNALS WITHIN PORTABLE DEVICES
Granted: October 26, 2023
Application Number:
20230343347
Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A…
RECURSIVE SEGMENT TO SCENE SEGMENTATION FOR CLOUD-BASED CODING OF HDR VIDEO
Granted: October 26, 2023
Application Number:
20230343100
In a cloud-based system for encoding high dynamic range (HDR) video, each node receives a video segment and bumper frames. Each segment is subdivided into primary scenes and secondary scenes to derive scene-based forward reshaping functions that minimize the amount of reshaping-related metadata when coding the video segment, while maintaining temporal continuity among scenes processed by multiple nodes. Methods to generate scene-based forward and backward reshaping functions to optimize…
SPATIAL LIGHT MODULATOR FOR REDUCTION OF CERTAIN ORDER LIGHT
Granted: October 26, 2023
Application Number:
20230341754
A novel spatial light modulator (SLM) includes a cover glass, and modulation layer, and a plurality of pixel minors, and separates unwanted, reflected light from desired, modulated light. In one embodiment, a geometrical relationship exists between the cover glass and the pixel minors, such that light that reflects from the cover glass is separated from light that reflects from the pixel minors and is transmitted from the SLM. In one example, one of the cover glass or the pixel minors is…
PROCESSING PARAMETRICALLY CODED AUDIO
Granted: October 19, 2023
Application Number:
20230335142
A method comprising receiving a first input bit stream for a first parametrically coded input audio signal, the first input bit stream including data representing a first input core audio signal and a first set including at least one spatial parameter relating to the first parametrically coded input audio signal. A first covariance matrix of the first parametrically coded audio signal is determined based on the spatial parameter(s) of the first set. A modified set including at least one…
REVERBERATION GENERATION FOR HEADPHONE VIRTUALIZATION
Granted: October 12, 2023
Application Number:
20230328469
The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to…
DOWNLOAD CONTROL IN MULTI-SERVER COMMUNICATION SYSTEM
Granted: October 12, 2023
Application Number:
20230328133
Apparatuses and methods for data traffic management in multi-source content delivery are described. The apparatus includes a downloader and a controller. The downloader is coupled to servers via communication links. The controller is configured to determine initial download requests for the servers based on predetermined information about a quality of the links. The controller is also configured to send the initial download requests to the servers with the downloader. The controller is…
USER CONFIGURABLE AUDIO LOUDSPEAKER
Granted: October 12, 2023
Application Number:
20230327353
Embodiments of a configurable loudspeaker using a user orientable routing card that allows for multiple electrical drive modes in a non-powered loudspeaker system. The speaker has one or more drivers mounted in enclosure, an audio input interface configured to be coupled to an audio source through one or more amplifiers, and a connector interface configured to receive a routing card. The routing card is configured to be inserted in a first orientation to connect the audio input interface…
MATRIX CODED STEREO SIGNAL WITH PERIPHONIC ELEMENTS
Granted: October 12, 2023
Application Number:
20230326469
Embodiments are disclosed for a matrix coded stereo signal with periphonic elements. A mixing matrix, suitable for processing a multi-channel audio input signal, is constructed so that the resulting multi-channel output signal contains the same audio elements from the input signal, wherein the spatial relationships between audio elements, as defined by panning rules associated with the input signal format, are preserved in the output signal, as defined by matrix encoding rules associated…
APERTURE SHARING FOR HIGHLIGHT PROJECTION
Granted: October 12, 2023
Application Number:
20230324783
A novel projection system includes a base signal source, a highlight signal source, a base/highlight destination, and a shared optical element. A base signal provided by the base source and a highlight signal provided by the highlight source are combined by the shared optical element. In a particular embodiment, the base signal source and the highlight signal source each include a light source, a spatial light modulator, and optics, and the base/highlight destination includes optics and…
ASYMMETRICAL ACOUSTIC HORN
Granted: October 5, 2023
Application Number:
20230317051
In one embodiment, there is provided an asymmetrical acoustic horn. The asymmetrical acoustic horn includes a single acoustic waveguide. The single acoustic waveguide includes a first asymmetrical horn section configured to support one or more first acoustic transducers, and a second asymmetrical horn section configured to support one or more second acoustic transducers, the one or more second acoustic transducers having a different frequency range than the one or more first acoustic…
AUDIO CONTROL USING AUDITORY EVENT DETECTION
Granted: October 5, 2023
Application Number:
20230318555
In some embodiments, a method for processing an audio signal in an audio processing apparatus is disclosed. The method includes receiving an audio signal and a parameter, the parameter indicating a location of an auditory event boundary. An audio portion between consecutive auditory event boundaries constitutes an auditory event. The method further includes applying a modification to the audio signal based in part on an occurrence of the auditory event. The parameter may be generated by…
