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Senior Research Scientist

Company: Nuance Communications, Inc.
Location: Burlington, MA
Posted on: June 20, 2017

Job Description:

Duties: Develop speech recognition products and solutions, including

Voicemail-to-Text (VM2T) and Voice-to-Text (V2T) solutions and core speech

signaling technologies, such as front-end signal processing algorithms,

Speech Quality Assessment, and Voice Quality Assurance technologies.

Perform V2T research and development to create, deliver, and improve the

core voice-to-text technology components that comprise speech recognition

products. Leverage applied research initiatives of the V2T group,

including the application of VQA technology to the V2T cloud service, and

expansion of Speech Quality Assessment (SQA) technology for use in VQA.

Utilize working knowledge of the VM2T signal processing pipeline and

experience with VQA technologies to expand the SQA technology for enhanced,

future utility outside of VM2T. Develop V2T signal processing pipeline,

SQA, and VQA technology. Research and develop front-end speech signal

processing algorithms for robust automatic speech recognition and low

complexity (compressed domain) speech enhancement, with a particular focus

on VM2T development efforts and compressed domain speech enhancement.

Develop novel speech quality and message classification algorithms, novel

compressed domain speech enhancement algorithms, and robust speaker

segmentation and diarization technology. Build and update models for QOS

service, as well as document current state-of-the-art in speech quality and

related areas of work.

Requirements: PhD (or foreign equivalent) in Electrical Engineering,

Signal Processing, or a related field and two (2) years of experience

building and testing signal processing algorithms for speech recognition

products; or in the alternative, a Master’s degree (or foreign equivalent)

in Electrical Engineering, Signal Processing, or a related field and five

(5) years of experience as indicated above.

Also requires demonstrated expertise (DE): utilizing Matlab, Octave and C

to simulate degradations in speech processing pipeline and develop non-

intrusive algorithms for CODEC identification, speech quality and room

acoustic parameter estimation (T60, C50, DRR) to optimize and improve

speech processing systems (including speech recognition); DE performing

multi-channel audio signal processing including beamforming and source

tracking for speaker diarization and speech recognition; DE utilizing

speech quality enhancement and noise reduction tools to measure and improve

automatic speech recognition and signal technologies; and DE leveraging

machine learning techniques including speech feature extraction, feature

dimensionality reduction and analysis; and Classification and Regression

modeling with tree based methods (CART), Probabilistic methods (GMMs) and

deep neural networks (DNNs) for speech signal analytics, speaker

diarization and speech recognition.

To apply, submit resume referencing Job Code # 31268 to Jason Hewitt,

Nuance Communications, 1 Wayside Road, Burlington, Massachusetts 01803.

Keywords: Nuance Communications, Inc., Malden , Senior Research Scientist, Other , Burlington, MA, Massachusetts

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