Audio Control Using Auditory Event Detection
Granted: December 8, 2022
Application Number:
20220394380
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…
ACOUSTIC REFLECTOR FOR HEIGHT CHANNEL SPEAKER
Granted: December 8, 2022
Application Number:
20220394377
A height channel speaker with an integrated acoustic reflector to reflect sound off of a ceiling down to a listener. The acoustic reflector compensates for thin transducers by creating a virtual image of the real sound source outside the speaker enclosure. The focal point of the acoustic reflector is controlled by modifying the curvature of the reflector surface. The transducer is mounted on an inclined plane to radiate sound in a rear-upward inclined direction. The acoustic reflector is…
MULTICHANNEL AUDIO ENCODE AND DECODE USING DIRECTIONAL METADATA
Granted: December 8, 2022
Application Number:
20220392462
The disclosure relates to methods of processing a spatial audio signal for generating a compressed representation of the spatial audio signal. The methods include analyzing the spatial audio signal to determine directions of arrival for one or more audio elements; for at least one frequency subband, determining respective indications of signal power associated with the directions of arrival; generating metadata including direction information that includes indications of the directions…
METHODS AND SYSTEM FOR WAVEFORM CODING OF AUDIO SIGNALS WITH A GENERATIVE MODEL
Granted: December 8, 2022
Application Number:
20220392458
Described herein is a method of waveform decoding, the method including the steps of: (a) receiving, by a waveform decoder, a bitstream including a finite bitrate representation of a source signal; (b) waveform decoding the finite bitrate representation of the source signal to obtain a waveform approximation of the source signal; (c) providing the waveform approximation of the source signal to a generative model that implements a probability density function, to obtain a probability…
ADAPTIVE PANNER OF AUDIO OBJECTS
Granted: December 1, 2022
Application Number:
20220386053
An audio object including audio content and object metadata is received. The object metadata indicates an object spatial position of the audio object to be rendered by audio speakers in a playback environment. Based on the object spatial position and source spatial positions of the audio speakers, initial gain values for the audio speakers are determined. The initial gain values can be used to select a set of audio speakers from among the audio speakers. Based on the object spatial…
CANVAS SIZE SCALABLE VIDEO CODING
Granted: December 1, 2022
Application Number:
20220385935
Methods and systems for canvas size scalability across the same or different bitstream layers of a video coded bitstream are described. Offset parameters for a conformance window, a reference region of interest (ROI) in a reference layer, and a current ROI in a current layer are received. The width and height of a current ROI and a reference ROI are computed based on the offset parameters and they are used to generate a width and height scaling factor to be used by a reference picture…
ADAPTING SIBILANCE DETECTION BASED ON DETECTING SPECIFIC SOUNDS IN AN AUDIO SIGNAL
Granted: December 1, 2022
Application Number:
20220383889
A method is disclosed herein for adapting parameters of a sibilance detector. Time-frequency features are extracted from an audio signal being received and. Based on those time-frequency features, a determination is made of whether the audio signal includes a short-term feature or a long-term feature. In accordance with determining that the audio signal includes the short-term feature or the long-term feature, one or more parameters of a sibilance detector for detecting sibilance in the…
VIEWER SYNCHRONIZED ILLUMINATION SENSING
Granted: November 24, 2022
Application Number:
20220375378
An embodiment of the disclosure provides a method and a system to sense a light source based on a viewer position in relation to display device. The system receives sensor data from one or more light sensors mounted on a wearable device worn by a viewer of a display device in a room, where a field of view for the light sensors covers at least a field of view of the viewer. The system identifies a light source perceived in a field of view of the viewer based on the sensor data. The system…
METHODS, APPARATUS AND SYSTEMS FOR DECOMPRESSING A HIGHER ORDER AMBISONICS (HOA) SIGNAL
Granted: November 24, 2022
Application Number:
20220377481
A method for compressing a HOA signal being an input HOA representation with input time frames (C(k)) of HOA coefficient sequences comprises spatial HOA encoding of the input time frames and subsequent perceptual encoding and source encoding. Each input time frame is decomposed (802) into a frame of predominant sound signals (XPS(k?1)) and a frame of an ambient HOA component ({tilde over (C)}AMB(k?1)). The ambient HOA component ({tilde over (C)}AMB(k?1)) comprises, in a layered mode,…
TRANSFORMING AUDIO SIGNALS CAPTURED IN DIFFERENT FORMATS INTO A REDUCED NUMBER OF FORMATS FOR SIMPLIFYING ENCODING AND DECODING OPERATIONS
Granted: November 24, 2022
Application Number:
20220375482
The disclosed embodiments enable converting audio signals captured in various formats by various capture devices into a limited number of formats that can be processed by an audio codec (e.g., an Immersive Voice and Audio Services (IVAS) codec). In an embodiment, a simplification unit of the audio device receives an audio signal captured by one or more audio capture devices coupled to the audio device. The simplification unit determines whether the audio signal is in a format that is…
BLIND DETECTION OF BINAURALIZED STEREO CONTENT
Granted: November 17, 2022
Application Number:
20220366933
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.
AUDIO ENCODING/DECODING WITH TRANSFORM PARAMETERS
Granted: November 17, 2022
Application Number:
20220366919
Encoding/decoding techniques where multiple transform parameter sets are encoded together with a rendered playback presentation of an input audio content. The multiple transform parameters are used on the decoder side to transform the playback presentation to provide a personalized binaural playback presentation optimized for an individual listener with respect to their hearing profile. This may be achieved by selection or combination of the data present in the metadata streams.
MULTI-CHANNEL CINEMA AMPLIFIER WITH POWER-SHARING, MESSAGING AND MULTI-PHASE POWER SUPPLY
Granted: November 10, 2022
Application Number:
20220360901
An integrated cinema amplifier comprises a power supply stage that distributes power over a plurality of channels for rendering immersive audio content in a surround sound listening environment. The amplifier automatically detects maximum and net power availability and requirements based on audio content by decoding audio metadata and dynamically adjusts gains to each channel or sets of channels based on content and operational/environmental conditions. A power supply stage provides…
DYNAMICS PROCESSING ACROSS DEVICES WITH DIFFERING PLAYBACK CAPABILITIES
Granted: November 10, 2022
Application Number:
20220360899
Individual loudspeaker dynamics processing configuration data, for each of a plurality of loudspeakers of a listening environment, may be obtained. Listening environment dynamics processing configuration data may be determined, based on the individual loudspeaker dynamics processing configuration data. Dynamics processing may be performed on received audio data based on the listening environment dynamics processing configuration data, to generate processed audio data. The processed audio…
SYSTEM AND METHOD FOR NON-DESTRUCTIVELY NORMALIZING LOUDNESS OF AUDIO SIGNALS WITHIN PORTABLE DEVICES
Granted: November 10, 2022
Application Number:
20220358944
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…
MULTI-CHANNEL CINEMA AMPLIFIER WITH POWER-SHARING, MESSAGING AND MULTI-PHASE POWER SUPPLY
Granted: November 3, 2022
Application Number:
20220353617
An integrated cinema amplifier comprises a power supply stage that distributes power over a plurality of channels for rendering immersive audio content in a surround sound listening environment. The amplifier automatically detects maximum and net power availability and requirements based on audio content by decoding audio metadata and dynamically adjusts gains to each channel or sets of channels based on content and operational/environmental conditions. A power supply stage provides…
VIDEO CONTENT CONTROLLER AND ASSOCIATED METHOD
Granted: November 3, 2022
Application Number:
20220353566
A video content controller includes a memory and a microprocessor. The memory is configured to store non-transitory computer-readable instructions and video data representing a temporally-varying scene having a plurality of scene-regions. The microprocessor adapted to execute the instructions to (i) receive a current stream-segment of a video stream corresponding to a first scene-region of the plurality of scene-regions during a current playback-time interval, (ii) download, to a memory,…
METHOD AND DEVICE FOR ARITHMETIC ENCODING OR ARITHMETIC DECODING
Granted: November 3, 2022
Application Number:
20220352900
The invention proposes a method and a device for arithmetic encoding of a current spectral coefficient using preceding spectral coefficients. Said preceding spectral coefficients are already encoded and both, said preceding and current spectral coefficients, are comprised in one or more quantized spectra resulting from quantizing time-frequency-transform of video, audio or speech signal sample values. Said method comprises processing the preceding spectral coefficients, using the…
MULTI-DEVICE WAKEWORD DETECTION
Granted: November 3, 2022
Application Number:
20220351724
A method for selecting a device for audio processing may involve receiving a first wakeword confidence metric from a first device that includes at least a first microphone and receiving a second wakeword confidence metric from a second device that includes at least a second microphone. The first and second wakeword confidence metrics may correspond to a first local maximum of a first plurality of wakeword confidence values determined by the first device and a second local maximum of a…
COORDINATION OF AUDIO DEVICES
Granted: October 27, 2022
Application Number:
20220345820
An audio session management method for an audio environment having multiple audio devices may involve receiving, from a first device implementing a first application and by a device implementing an audio session manager, a first route initiation request to initiate a first route for a first audio session. The first route initiation request may indicate a first audio source and a first audio environment destination. The first audio environment destination may correspond with at least a…
