Methods and Apparatus for Rendering Audio Objects
Granted: August 24, 2023
Application Number:
20230269551
Multiple virtual source locations may be defined for a volume within which audio objects can move. A set-up process for rendering audio data may involve receiving reproduction speaker location data and pre-computing gain values for each of the virtual sources according to the reproduction speaker location data and each virtual source location. The gain values may be stored and used during “run time,” during which audio reproduction data are rendered for the speakers of the…
TRANSDUCER ASSEMBLY AND ASSOCIATED SIGNAL PROCESSING
Granted: August 24, 2023
Application Number:
20230269539
Example embodiments disclosed herein relate to a transducer assembly and associated signal processing. A transducer assembly includes two voice coils in a telescopic arrangement and having unequal sizes, and two suspension systems connected to the two voice coils, respectively. The two voice coils extend in opposites directions from their suspension systems. Dimensions of respective wires of the two voice coils are determined based on respective magnetic flux densities in magnetic gaps…
NOISE REDUCTION USING MACHINE LEARNING
Granted: August 24, 2023
Application Number:
20230267947
A method of noise reduction includes using a neural network to control a Wiener filter. The gains estimated by the neural network are combined with the gains produced by the Wiener filter. In this manner, the noise reduction system provides improved results as compared to using only a neural network.
METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES
Granted: August 17, 2023
Application Number:
20230262409
Methods and systems for designing binaural room impulse responses (BRIRs) for use in headphone virtualizers, and methods and systems for generating a binaural signal in response to a set of channels of a multi-channel audio signal, including by applying a BRIR to each channel of the set, thereby generating filtered signals, and combining the filtered signals to generate the binaural signal, where each BRIR has been designed in accordance with an embodiment of the design method. Other…
CREATIVE INTENT SCALABILITY VIA PHYSIOLOGICAL MONITORING
Granted: August 17, 2023
Application Number:
20230262287
Creative intent input describing emotion expectations and narrative information relating to media content is received. Expected physiologically observable states relating to the media content are generated based on the creative intent input. An audiovisual content signal with the media content and media metadata comprising the physiologically observable states is provided to a playback apparatus. The audiovisual content signal causes the playback device to use physiological monitoring…
HEAD TRACKING AND HRTF PREDICTION
Granted: August 10, 2023
Application Number:
20230254660
Images of a user’s head are acquired at a plurality of different orientational angles through image sensors operating in conjunction with a media consumption system. The acquired images of the user’s head are used to select or predict a specific personalized head related transfer function for the user. Spatial audio rendered by audio speakers operating in conjunction with the media consumption system is adjusted or modified based at least in part on the specific personalized HRTF…
IMAGE PREDICTION FOR HDR IMAGING IN OPEN-LOOP CODECS
Granted: August 10, 2023
Application Number:
20230254494
Given input HDR and SDR images representing the same scene, a prediction model to predict the HDR image from a compressed representation of the input SDR image is generated as follows: a) generate noise data based at least on the characteristics of the HDR image b) generate a noisy SDR image by adding the noise data to the SDR image c) generate an augmented HDR data set and an augmented SDR data set by using the input HDR and SDR images and the noisy SDR image d) generate a prediction…
JITTER BUFFER CONTROL BASED ON MONITORING OF DELAY JITTER AND CONVERSATIONAL DYNAMICS
Granted: August 10, 2023
Application Number:
20230254231
Some implementations involve analyzing audio packets received during a time interval that corresponds with a conversation analysis segment to determine network jitter dynamics data and conversational interactivity data. The network jitter dynamics data may provide an indication of jitter in a network that relays the audio data packets. The conversational interactivity data may provide an indication of interactivity between participants of a conversation represented by the audio data. A…
SEPARATION OF PANNED SOURCES FROM GENERALIZED STEREO BACKGROUNDS USING MINIMAL TRAINING
Granted: August 3, 2023
Application Number:
20230245664
In an embodiment, a spatio-level filter (SLF) is created by obtaining a first set of samples from a plurality of target source level and spatial distributions in frequency subbands in a frequency domain, obtaining a second set of samples from a plurality of background level and spatial distributions in frequency subbands in a frequency domain, adding the first and second sets of samples to create a combined set of samples, detecting level and spatial parameters for each sample in the…
METHODS, APPARATUS, AND SYSTEMS FOR DETECTION AND EXTRACTION OF SPATIALLY-IDENTIFIABLE SUBBAND AUDIO SOURCES
Granted: August 3, 2023
Application Number:
20230245671
In an embodiment, a method comprises: transforming one or more frames of a two-channel time domain audio signal into a time-frequency domain representation including a plurality of time-frequency tiles, wherein the frequency domain of the time-frequency domain representation includes a plurality of frequency bins grouped into subbands. For each time-frequency tile, the method comprises: calculating spatial parameters and a level for the time-frequency tile; modifying the spatial…
METHODS AND SYSTEMS FOR GENERATING AND RENDERING OBJECT BASED AUDIO WITH CONDITIONAL RENDERING METADATA
Granted: July 27, 2023
Application Number:
20230238004
Methods and audio processing units for generating an object based audio program including conditional rendering metadata corresponding to at least one object channel of the program, where the conditional rendering metadata is indicative of at least one rendering constraint, based on playback speaker array configuration, which applies to each corresponding object channel, and methods for rendering audio content determined by such a program, including by rendering content of at least one…
MOIRE REDUCTION WITH CONTROLLED PERFORATION LOCATION
Granted: July 27, 2023
Application Number:
20230236492
One or more perforation hole pattern methods are applied (402) to generate a spatial distribution of perforation holes forming a semi-random pattern for an image display screen. The image display screen is perforated (404) with the spatial distribution of perforation holes forming the semi-random pattern. Image rendering light is emitted (406) with a light projector toward the image display screen that is installed in an image rendering environment. At least a portion of the image…
EFFICIENT USER-DEFINED SDR-TO-HDR CONVERSION WITH MODEL TEMPLATES
Granted: July 20, 2023
Application Number:
20230229011
Embodiments are disclosed for projection systems with rotatable anamorphic lenses. In an embodiment, an optical projection system comprises: a light source; an optical integrator configured to receive light from the light source and to distribute a uniform pattern of light; a relay lens system including two or more rotatable anamorphic lenses, the anamorphic lenses oriented about an optical axis to transform the uniform pattern of light into an image having a specified aspect ratio; at…
PERCEPTUAL OPTIMIZATION OF MAGNITUDE AND PHASE FOR TIME-FREQUENCY AND SOFTMASK SOURCE SEPARATION SYSTEMS
Granted: July 20, 2023
Application Number:
20230232176
A method comprises: obtaining softmask values for frequency bins of time-frequency tiles representing an audio signal; reducing, or expanding and limiting, the softmask values; and applying the reduced, or expanded and limited, softmask values to the frequency bins to create a time-frequency representation of an estimated target source. An alternative method comprises, for each time-frequency tile: obtaining softmask values; applying the softmask values to the frequency bins to create a…
NON-INTRUSIVE TRANSDUCER HEALTH DETECTION
Granted: July 20, 2023
Application Number:
20230232174
Embodiments are disclosed for non-intrusive transducer health detection in an audio system. In an embodiment, a method performed by the audio system comprises outputting one or more encoded inaudible acoustic signals into an acoustic transmission medium using a first transducer. The one or more encoded inaudible acoustic signals are received from the acoustic transmission medium using a second transducer of the audio system. The received one or more encoded inaudible acoustic signals are…
MULTICHANNEL AUDIO ENHANCEMENT, DECODING, AND RENDERING IN RESPONSE TO FEEDBACK
Granted: July 20, 2023
Application Number:
20230231526
In some embodiments, a method for performing at least one of enhancement, decoding, or rendering of a multichannel audio signal in response to compression feedback or feedback from a smart amplifier. For example, the compression feedback may be indicative of amount of compression applied to each of multiple frequency bands, of the audio signal or an enhanced audio signal generated in response thereto. The enhancement (e.g., bass enhancement) may include dynamic routing of audio content…
VIDEO CONTENT CREATION TOOL AND METHOD
Granted: July 20, 2023
Application Number:
20230230618
A content-creation tool includes a processor and a memory. The processor is configured to receive a first video clip and a second video clip, a respective first and second metadata-item thereof being set to a respective first and second metadata-value. The memory stores video-editing software that includes a timeline interface and instructions that, when executed by the processor, control the processor to: add the first video clip to the timeline interface as a first timeline-track that…
COMPUTING DYNAMIC METADATA FOR EDITING HDR CONTENT
Granted: July 20, 2023
Application Number:
20230230617
A system and method of editing video content includes receiving input video data; converting the input video data to a predetermined format; generating a plurality of initial metadata values for a frame of the converted video data, the plurality of initial metadata values including a first metadata value corresponding to a first fixed value not calculated from a content including the frame, a second metadata value corresponding to an average luminance value of the frame, and a third…
AUTOMATED MIXING OF AUDIO DESCRIPTION
Granted: July 20, 2023
Application Number:
20230230607
A computer-implemented method of audio processing, the method comprising: receiving audio object data and audio description data, wherein the audio object data includes a first plurality of audio objects; calculating a long-term loudness of the audio object data and a long- term loudness of the audio description data; calculating a plurality of short-term loudnesses of the audio object data and a plurality of short-term loudnesses of the audio description data; reading a first plurality…
ENHANCEMENT OF SPATIAL AUDIO SIGNALS BY MODULATED DECORRELATION
Granted: July 20, 2023
Application Number:
20230230600
Some methods involve receiving an input audio signal that includes N input audio channels, the input audio signal representing a first soundfield format having a first soundfield format resolution, N being an integer ?2. A first decorrelation process may be applied to two or more of the input audio channels to produce a first set of decorrelated channels, the first decorrelation process maintaining an inter-channel correlation of the set of input audio channels. A first modulation…
