Company Filing History:
Years Active: 2015-2016
Title: Innovations by Shawn E Stevenson
Introduction
Shawn E Stevenson is a notable inventor based in Burnaby, Canada. He has made significant contributions to the field of voice signal processing, holding a total of 6 patents. His work focuses on enhancing the intelligibility of speech signals in noisy environments, which is crucial for effective communication.
Latest Patents
One of his latest patents involves voice signal enhancement. This innovation includes systems, methods, and devices designed to improve the clarity of a target speech signal by utilizing targeted voice model-based processing of a noisy audible signal. The implementation employs an amplitude-independent voice proximity function to attenuate unwanted noise and accentuate the target speech signal. In certain cases, the target speech signal is identified as a near-field signal by detecting a prominent train of glottal pulses within the noisy audible signal. The systems also perform computational auditory scene analysis by converting the noisy signal into narrowband time-frequency units, selectively enhancing those associated with the target speech.
Another significant patent by Stevenson focuses on voice activity detection and pitch estimation. This invention includes systems and methods that detect voice activity in an audible signal by identifying glottal pulses. The dominant frequency of these pulses represents the intonation pattern of natural speech, commonly referred to as pitch. Given that spoken communication often occurs amidst noise, the detection of voice activity is enhanced by dividing the frequency spectrum into multiple sub-bands to isolate glottal pulses that stand out against the noise.
Career Highlights
Shawn E Stevenson is currently employed at Malaspina Labs, Inc. His work at this company has allowed him to further develop his innovative ideas and contribute to advancements in voice signal processing technology.
Collaborations
Stevenson collaborates with talented individuals such as Pierre Zakarauskas and Alexander Escott. Their combined expertise fosters a creative environment that drives innovation in their projects.
Conclusion
Shawn E Stevenson is a prominent inventor whose work in voice signal processing has led to several impactful patents. His innovations are paving the way for clearer communication in noisy environments, showcasing the importance of technology in enhancing everyday interactions.