Qualcomm Incorporated

Matthew Zivney

Manjunatha Kantharaju

Harinath Garudadri

Kirankumar Bhoja Anchan

Samir Kumar Gupta

Eddie L T Choy

Louis Dominic Oliveira

Sandeep Louis D'Souza

Hui-Ya Liao Nelson

Anthony Patrick Mauro, Ii

Kuntal Dilipsinh Sampat

Shankar Ganesh Lakshmanaswamy

Tien-Hsin Lee

Tony Zhou Lee

Reid Westburg

Eddie Choy

Vasudev Nayak

Satish Goverdhan

Mingxia Cheng

William Scofield

George Issa Saman

Shreyas Srikanth Payal

Yujie Gao

Hocine Merabti

Audio and haptic signal processing systems and methods are provided. There is provided a method for haptic drive signal generation. The method comprises receiving an input audio signal for driving an audio speaker. The method further comprises deriving, from the audio signal, data components indicative of behaviour of the audio speaker when being driven by the input audio signal, each data component being associated with a respective frequency range. The method further comprises determining a haptic drive component from each data component. A gain is selected to provide to each of the haptic drive components, the gain being selected for each respective frequency range. Each selected gain is applied to the respective haptic drive component to produce gain adjusted haptic drive components. A haptic drive signal is determined from the gain adjusted haptic drive components, the haptic drive signal being so as to produce a mechanical behaviour of the haptic actuator when the haptic drive signal is used to drive the haptic actuator.

Audio and haptic signal processing

Methods, systems, and devices for audio dejittering are described. The method may include determining a mean delay applied to packets in a packet voice communication system, calculating, from the mean delay, a standard deviation for at least a subset of packets in a talk spurt, determining a target delay for the talk spurt by applying a moving average to the standard deviation, and applying the target delay to a first packet from the talk spurt.

Audio dejittering using delay standard deviation

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 method and system for resynchronizing an embedded multimedia system using bytes consumed in an audio decoder. The bytes consumed provides a mechanism to compensate for bit error handling and correction in a system that does not require re-transmission. The audio decoder keeps track of the bytes consumed and periodically reports the bytes consumed. A host microprocessor indexes the actual bytes consumed since bit errors may have been handled or corrected to a predetermined byte count to determine whether resynchronization is necessary.

Method and system for error robust audio playback time stamp reporting

This disclosure describes audio mixing techniques that allow a user to select between two different audio signals for output in a perceptual foreground of a combined output. As an example, the two different signals may comprise a music audio and a phone call audio. In this case, the music audio and phone call audio may be initially combined such that the phone call is delivered in the perceptual foreground and the music audio is delivered in a perceptual background. However, a user is able to switch the music to the foreground and the phone call to the background by actuating a user input device. In this way, after receiving a telephone call, if a user wants to move the phone call into a perceptual background in favor of music in the foreground, the user is able to achieve this result, e.g., at the press of a button.

User selectable audio mixing

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San Diego, CA, United States of America

Matthew Zivney