Disclosed herein are systems and methods for clock sustain in a two-wire communication systems and applications thereof. In some embodiments, in a clock sustain state, slave nodes with processors and digital to analog converters (DACs) may be powered down efficiently in the event of lost bus communication. For example, when the bus loses communication and a reliable clock cannot be recovered by the slave node, the slave node may enter the sustain state and, if enabled, signals this event to a general purpose input/output (GPIO) pin. In the clock sustain state, the slave node phase lock loop (PLL) may continue to run for a predetermined number of SYNC periods, while attenuating the inter-integrated circuit transmit (I2S DTXn) data from its current value to 0. After the predetermined number of SYNC periods, the slave node may reset and reenter a power-up state.

Methods and systems for processing audio data, such as spatial audio data, which modify sound characteristics of a given component of a spatial audio signal based on a relationship between a direction characteristic of the given component and a defined range of direction characteristics. A spatial audio in a format using a spherical harmonic representation of sound components is decoded by performing a transform on the spherical harmonic representation, where the transform is based on a predefined speaker layout and a predefined rule, the predefined rule indicating a speaker gain of each speaker arranged according to the predefined layout, when reproducing sound incident form a given direction to provide alternatives to existing methods of decoding spatial audio streams, which focus on soundfield reconstruction. A plurality of matrix transforms is combined into a combined transform that is performed on an audio signal; this saves processing resources of the audio system.

An audio providing apparatus and method are provided. The audio providing apparatus includes: an object renderer configured to render an object audio signal based on geometric information regarding the object audio signal; a channel renderer configured to render an audio signal having a first channel number into an audio signal having a second channel number; and a mixer configured to mix the rendered object audio signal with the audio signal having the second channel number.

A hearing aid includes: a first microphone system configured for conversion of sound emitted by a sound source into a first audio signal; a first matched filter configured for filtering the first audio signal into a first filtered audio signal, the first matched filter having a first matching transfer function that substantially matches a first transfer function of a first sound propagation path leading from the sound source to the first microphone system, when a user wears the hearing aid; and a hearing loss processor configured to provide a hearing loss compensated output signal that compensates for a hearing loss of the user based at least in part on the first filtered audio signal.

A system and method for rendering a piece of sound program content to include data and parameters that describe perceptual, acoustic, and geometric object properties is provided. The perceptual, acoustic, and geometric properties may include one or more of 1) a three-dimensional location of an audio object, 2) a width of an audio object, 3) ambience characteristics of an audio object, 4) diffuseness characteristics of an audio object, and 5) a direct-to-reverberant sound ratio of an audio object. Based on these pieces of data, an audio playback system may produce one or more beam patterns that reproduce three-dimensional properties of audio objects and/or audio channels of the piece of sound program content. Accordingly, the system and method for rendering a piece of sound program content may accurately represent the multi-dimensional properties of the piece of sound program content through the use of beam patterns.

A system and method for rendering a piece of sound program content to include data and parameters that describe perceptual, acoustic, and geometric object properties is provided. The perceptual, acoustic, and geometric properties may include one or more of 1) a three-dimensional location of an audio object, 2) a width of an audio object, 3) ambience characteristics of an audio object, 4) diffuseness characteristics of an audio object, and 5) a direct-to-reverberant sound ratio of an audio object. Based on these pieces of data, an audio playback system may produce one or more beam patterns that reproduce three-dimensional properties of audio objects and/or audio channels of the piece of sound program content. Accordingly, the system and method for rendering a piece of sound program content may accurately represent the multi-dimensional properties of the piece of sound program content through the use of beam patterns.

A method for selecting a subset of channels of (e.g., determined from) at least a segment of a multichannel audio program for watermarking and watermarking the selected subset of channels, and a system or device configured to implement any embodiment of the method, or including a buffer which stores at least one frame or other segment of a multichannel audio program generated by any embodiment of the method or steps thereof. Some embodiments generate watermarking metadata during program creation including by analyzing audio content to be included in segments of a multichannel program, determining at least one watermark suitability value for each channel of each of the segments, and including the watermark suitability values (or watermarking data determined therefrom) as metadata in the program. Some embodiments are implemented by a playback system which determines the selected subset of channels to be watermarked.

A method and apparatus are provided for processing data for estimating mixing parameters of at least one audio spot signal captured by a sound recording device, called a spot microphone, arranged in the vicinity of a source among a plurality of acoustic sources constituting a sound scene, and a primary audio signal captured by an ambisonic sound recording device, arranged to capture said plurality of acoustic sources of the sound scene.

Methods and systems for positioning audio signals on virtual soundstages. The mobile device may include one or more orientation components that are used to generate orientation data that track directional changes that are used to position an audio signal on a virtual soundstage. A listener of the sound from the audio signal may be associated with the orientation data such that the positioning of the audio signal provides virtual acoustic presence on the virtual soundstage. The audio signal is received, the audio signal may be associated with a plurality audio channels. The orientation data for positioning the audio signal is also received. A position for the audio signal on the virtual soundstage is determined based in part on the orientation data. The audio signal is then positioned on the virtual soundstage.

Systems and methods are disclosed herein that may be implemented to use multiple light sources to visually display non-graphics positional audio information based on multi-channel audio information produced by a computer application executing on a processor of an information handling system. The multiple light sources may be operated separately and independently from a user's computer display device, and the non-graphics positional audio information may be separate and different from any visual graphics data that is generated by the computer application or information handling system.