Qualcomm Incorporated

Vasudev Nayak

Shankar Thagadur Shivappa

S M Akramus Salehin

Tien-Hsin Lee

Srinivasan Balasubramanian

Erik Visser

Min Wang

Lae-Hoon Kim

Kirankumar Bhoja Anchan

Vikram Singh

Isaac Garcia Munoz

Nils Gunther Peters

Sanghyun Chi

Shankar Ganesh Lakshmanaswamy

Matthew Zivney

Sandeep Padubidri Ramamurthy

Manjunatha Kantharaju

Andy Yu

Yau Mo Chan

Gang Chen

Matthew C Millward

Shankar Genesh LakshmanaSwamy

In an aspect, a lens is zoomed in to create a zoomed lens. Lens data associated with the lens includes a direction of the lens relative to an object in a field-of-view of the zoomed lens and a magnification of the object resulting from the zoomed lens. An array of microphones capture audio signals including audio produced by the object and interference produced by other objects. The audio signals are processed to identify a directional component associated with the audio produced by the object and three orthogonal components associated with the interference produced by the other objects. Stereo beamforming is used to increase a magnitude of the directional component (relative to the interference) while retaining a binaural nature of the audio signals. The increase in magnitude of the directional component is based on an amount of the magnification provided by the zoomed lens to the object.

Spatial audio zoom

An apparatus includes de-jitter buffer control circuitry configured to determine an arrival delay value based on previously received audio packets, to identify a receive time of a first audio packet of a talk spurt, to determine an offset value of the first audio packet based on the receive time and the arrival delay value, and to adjust a target delay value associated with a de-jitter buffer based on the offset value. The apparatus also includes a de-jitter buffer configured to buffer the first audio packet based on the adjusted target delay value.

Apparatus and method for de-jitter buffer delay adjustment

A device includes a mixer configured to mix first ambisonic data and second ambisonic data to generate mixed ambisonic data. The first ambisonic data and the second ambisonic data correspond to different spatial orders. The device also includes ambisonic adjustment circuitry configured to adjust the mixed ambisonic data based on position data to generate an adjusted mixed ambisonic output.

System and method for mixing and adjusting multi-input ambisonics

Methods, systems, and devices are described for media synchronization. Multi-stream media processes may include media streams captured with respect to different clock rates. Multi-processor implementations may involve separate clocks associated with different media streams, such as audio and video, respectively. The separate clocks may tend to drift from one another, becoming further out of sync as time passes. Selecting a reference time of one of the processors to function as a 'wall clock,' recording frame capture times with respect to the reference time, accounting for propagation delays, and transmitting frame capture times in terms of the reference time may aid in AV synchronization at a device where audio and video streams are received.

Clock synchronization for multi-processor/multi-chipset solution

This disclosure is directed to techniques for controlling the execution speed of a processor that executes audio processing algorithms. In some examples, the execution speed of the processor may be controlled based on one or more delay parameters that are obtained from querying one or more tasks that execute the audio processing algorithms. The delay parameters that are returned by the tasks in response to the queries may, in some examples, be dependent upon one or more algorithm-specific parameters that are used to configure the audio processing algorithms. The techniques of this disclosure may be used to reduce the amount of power consumed by a processor that is configured to execute one or more audio processing algorithms in an audio communication device, which may be particularly useful in audio communication devices where power resources are limited, such as, e.g., a mobile phone.

Controlling the execution speed of a processor in an audio processing system

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San Diego, CA, United States of America

Vasudev Nayak