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Pei Xiang

from San Diego, CA
Age ~46
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Also known as:
Pei Xiaing
Phone and address:
7225 Calabria Ct, San Diego, CA 92122
(858) 450-2920
Connected to:
Dong Xiang, 59Ge Xiang, 42Larry Xiang, 61Liu M Xiang, 81Qing H Xiang, 50Shang Xiang, 38Wendy Xiang, 37Xianhao Xiang, 61Yuanjian Xiang, 68Zi X Xiang, 39

Pei Xiang Phones & Addresses

  • 7225 Calabria Ct, San Diego, CA 92122 (858) 450-2920
  • 7225 Calabria Ct #83, San Diego, CA 92122 (858) 450-2920
  • 7436 Bovet Way, San Diego, CA 92122
  • La Jolla, CA

Resumes

Resumes

Pei Xiang Photo 1

Audio Research Engineer At Qualcomm; Composer

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Position:
Audio Research Engineer, Staff at Qualcomm
Location:
Greater San Diego Area
Industry:
Consumer Electronics
Work:
Qualcomm since Oct 2008
Audio Research Engineer, Staff
Qualcomm Oct 2005 - Oct 2008
Audio Systems Engineer, Senior
Center for Research in Computing and the Arts, UC San Diego Sep 2001 - Jun 2007
Researcher
Music Fruit Art & Culture Ltd. 2000 - 2001
Assistant Producer
Education:
University of California, San Diego 2003 - 2007
PhD, Computer Music University of California, San Diego 2001 - 2003
MA, Music Technology Tsinghua University 1997 - 2001
BS, Electronic Engineering
Skills:
C++
Matlab
English
Electronics
Sound
Algorithms
Music
Pro Tools
User Experience
Programming
Software Development
Digital Signal Processors
Interests:
Electronic Music, Piano, Tabla, History, Nature
Languages:
French
Pei Xiang Photo 2

Founder And Chief Executive Officer

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Location:
San Diego, CA
Industry:
Consumer Electronics
Work:
Qualcomm since Oct 2008
Audio Research Engineer, Staff
Qualcomm Oct 2005 - Oct 2008
Audio Systems Engineer, Senior
Center for Research in Computing and the Arts, UC San Diego Sep 2001 - Jun 2007
Researcher
Music Fruit Art & Culture Ltd. 2000 - 2001
Assistant Producer
Education:
University of California, San Diego 2003 - 2007
PhD, Computer Music University of California, San Diego 2001 - 2003
MA, Music Technology Tsinghua University 1997 - 2001
BS, Electronic Engineering
Skills:
C++
Matlab
English
Electronics
Sound
Algorithms
Music
Pro Tools
User Experience
Programming
Software Development
Digital Signal Processors
Image Processing
Digital Signal Processing
Mobile Devices
Embedded Systems
Debugging
Audio Processing
Machine Learning
Signal Processing
Computer Vision
Objective C
Device Drivers
Embedded Software
Fpga
Audio Engineering
Vhdl
Latex
Interests:
Electronic Music
Environment
Science and Technology
Piano
Health
Nature
Arts and Culture
History
Tabla
Languages:
French

Business Records

Name / Title
Company / Classification
Phones & Addresses
Pei Xiang
*
Mint Muse LLC
Audio Design and Music Business · Sound Design Innovation and Music Distri
7225 Calabria Ct, San Diego, CA 92122
8109 Bia Kino, San Diego, CA 92122

Publications

Us Patents

Mixing Techniques For Mixing Audio

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US Patent:
8041057, Oct 18, 2011
Filed:
Jun 7, 2006
Appl. No.:
11/449454
Inventors:
Pei Xiang - San Diego CA, US
Eddie L. T. Choy - Carlsbad CA, US
Prajakt V. Kulkarni - San Diego CA, US
Samir Kumar Gupta - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04B 1/00
US Classification:
381119, 381104, 381107, 381 1, 4555692
Abstract:
This disclosure describes audio mixing techniques that intelligently combine two or more audio signals into an output signal. The techniques allow audio to be combined, yet create perceptual differentiation between the different audio signals. The result is that a user is able to hear both audio signals in a combined output, but the different audio signals do not perceptually interfere with one another. The techniques are relatively simple to implement and are well suited for radio telephones.

Data Searching Using Spatial Auditory Cues

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US Patent:
8417703, Apr 9, 2013
Filed:
Oct 15, 2010
Appl. No.:
12/905340
Inventors:
Pei Xiang - San Diego CA, US
Manish Mahajan - San Jose CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
G06F 3/16
G06F 17/30
US Classification:
707736, 707916, 715727
Abstract:
Spatial auditory cues are produced while a user searches a database for stored information. The spatial auditory cues assist the user in quickly locating stored information by producing sounds that are perceived at specific physical locations in space around the user as the search proceeds. Each location may be associated with different information. Thus, using the techniques disclosed herein, a user can more easily recall stored information by remembering the locations of sound produced by particular spatial auditory cues. The spatial auditory cues may be used in conjunction with a visual search interface. A method of producing auditory cues includes receiving a search action at a user interface included in a device, translating the search action into a spatial auditory cue corresponding to a specific location within a space, and rendering the spatial auditory cue as an audio output signal.

Methods And Apparatus For Providing An Interface To A Processing Engine That Utilizes Intelligent Audio Mixing Techniques

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US Patent:
8515106, Aug 20, 2013
Filed:
Nov 28, 2007
Appl. No.:
11/946319
Inventors:
Pei Xiang - San Diego CA, US
Samir Kumar Gupta - San Diego CA, US
Eddie L. T. Choy - Carlsbad CA, US
Prajakt V. Kulkarni - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04R 5/00
H04R 5/02
US Classification:
381310, 381 17, 381306
Abstract:
A method for providing an interface to a processing engine that utilizes intelligent audio mixing techniques may include receiving a request to change a perceptual location of an audio source within an audio mixture from a current perceptual location relative to a listener to a new perceptual location relative to the listener. The audio mixture may include at least two audio sources. The method may also include generating one or more control signals that are configured to cause the processing engine to change the perceptual location of the audio source from the current perceptual location to the new perceptual location via separate foreground processing and background processing. The method may also include providing the one or more control signals to the processing engine.

Automatic Volume And Dynamic Range Adjustment For Mobile Audio Devices

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US Patent:
20080269926, Oct 30, 2008
Filed:
Apr 30, 2007
Appl. No.:
11/742476
Inventors:
Pei Xiang - San Diego CA, US
Song Wang - San Diego CA, US
Prajakt V. Kulkarni - San Diego CA, US
Samir Kumar Gupta - San Diego CA, US
Eddie L.T. Choy - Carlsbad CA, US
International Classification:
H04S 7/00
US Classification:
700 94, 381 942
Abstract:
A mobile audio device (for example, a cellular telephone, personal digital audio player, or MP3 player) performs Audio Dynamic Range Control (ADRC) and Automatic Volume Control (AVC) to increase the volume of sound emitted from a speaker of the mobile audio device so that faint passages of the audio will be more audible. This amplification of faint passages occurs without overly amplifying other louder passages, and without substantial distortion due to clipping. Multi-Microphone Active Noise Cancellation (MMANC) functionality is, for example, used to remove background noise from audio information picked up on microphones of the mobile audio device. The noise-canceled audio may then be communicated from the device. The MMANC functionality generates a noise reference signal as an intermediate signal. The intermediate signal is conditioned and then used as a reference by the AVC process. The gain applied during the AVC process is a function of the noise reference signal.

Crosstalk Cancellation For Closely Spaced Speakers

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US Patent:
20090086982, Apr 2, 2009
Filed:
Sep 28, 2007
Appl. No.:
11/864552
Inventors:
Prajakt V. Kulkarni - San Diego CA, US
Pei Xiang - San Diego CA, US
Assignee:
QUALCOMM INCORPORATED - San Diego CA
International Classification:
H04R 5/00
US Classification:
381 1
Abstract:
A technique for canceling acoustic crosstalk is provided including a pre-processing filter and a crosstalk cancellation device. The pre-processing filter may be configured to obtain first and second channel signals and compensate or adjust the first and/or second channel signals for anticipated subsequent stage distortion by the crosstalk cancellation device. The crosstalk cancellation device maybe configured to receive the compensated first and second channel signals from the pre-processing filter. The crosstalk cancellation device then modifies the first channel signal to cancel anticipated acoustic crosstalk from the second channel signal, and modifies the second channel signal to cancel acoustic crosstalk from the first channel signal. The modified first channel signal is then transmitted over a first speaker and the modified second channel signal is transmitted over a second speaker. The first and second speakers may be closely spaced, yet provide a widened stereo image of the first and second channel signals.

Methods And Apparatus For Providing A Distinct Perceptual Location For An Audio Source Within An Audio Mixture

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US Patent:
20090136044, May 28, 2009
Filed:
Nov 28, 2007
Appl. No.:
11/946365
Inventors:
Pei Xiang - San Diego CA, US
Samir Kumar Gupta - San Diego CA, US
Eddie L. T. Choy - Carlsbad CA, US
Prajakt V. Kulkarni - San Diego CA, US
Assignee:
QUALCOMM INCORPORATED - San Diego CA
International Classification:
H04H 20/00
US Classification:
381 2
Abstract:
In accordance with a method for providing a distinct perceptual location for an audio source within an audio mixture, a foreground signal may be processed to provide a foreground perceptual angle for the foreground signal. The foreground signal may also be processed to provide a desired attenuation level for the foreground signal. A background signal may be processed to provide a background perceptual angle for the background signal. The background signal may also be processed to provide a desired attenuation level for the background signal. The foreground signal and the background signal may be combined into an output audio source.

Systems And Methods For Providing Surround Sound Using Speakers And Headphones

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US Patent:
20090304214, Dec 10, 2009
Filed:
Jun 5, 2009
Appl. No.:
12/479472
Inventors:
Pei Xiang - San Diego CA, US
Prajakt Kulkarni - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04R 5/02
US Classification:
381307
Abstract:
A mobile device may include at least one processor configured to generate a first set and second set of processed audio signals for use in a surround sound system. The mobile device may also include at least one output port adapted to provide the first set of processed audio signals for use in the surround sound system to at least two speakers. The mobile device may also include an output port adapted to provide the second set of processed audio signals for use in the surround sound system to headphone speakers.

M-S Stereo Reproduction At A Device

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US Patent:
20100331048, Dec 30, 2010
Filed:
Dec 2, 2009
Appl. No.:
12/629612
Inventors:
Pei Xiang - San Diego CA, US
Wade L. Heimbigner - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04B 1/38
H04R 5/00
H04M 1/00
US Classification:
455557, 381 1, 4555691
Abstract:
Mid-side (M-S) encoded audio is reproduced by a device that includes a multi-channel digital-to-analog converter (DAC). The DAC has a first channel input receiving a digitized mid audio signal, a first channel output providing an analog mid audio signal, a second channel input receiving a digitized side audio signal and a second channel output providing an analog side audio signal. The DAC may also include a third channel for receiving a digitized second side audio signal. The second side audio signal is phase inverted. The device may be a handheld wireless communication device, such as a cellular phone, and may also include transducers for outputting M-S encoded sound in response to the analog mid and side audio signals.
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Pei Xiang from San Diego, CA, age ~46 Get Report