Pitch Synchronous Segmentation of Speech Signals

Metadata Updated: November 12, 2020

The Pitch Synchronous Segmentation (PSS) that accelerates speech without changing its fundamental frequency method could be applied and evaluated for use at NASA. There are many situations where crew or ground controllers must listen to concurrent speakers. Application of this method could improve speech comprehension and reduce workload in these situations.Crewmembers and ground controllers often have to monitor multiple channels of speech communication during missions (multiple ground channels, onboard channels, and live speech), which can be difficult. Crew have reported that they often have to manually turn down some channels that are lower priority in order to focus on the channels of communication that they perceive to be more relevant at any point in time. We know that speech recognition is reduced when listening to concurrent speech. The U.S. Naval Research Laboratory developed a method called pitch synchronous segmentation (PSS) that accelerates speech without changing its fundamental frequency. Thus, within the same time frame, speech segments can be modified to be listened to in sequence instead of concurrently. Research shows that serial speech accelerated 50% to 65% of the speed of the original speech leads to better speech comprehension than concurrent speech at normal speed. Two key application areas were identified: Immediate accelerated playback of ground control communication with crew (to confirm dialog that was missed) Accelerated playback of recordings for troubleshooting anomalies Use of PSS for live, concurrent speech requires further research to determine the cost and benefits.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Identifier TECHPORT_10740
Data First Published 2012-04-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://techport.nasa.gov/view/10740
Program Code 026:027
Source Datajson Identifier True
Source Hash dfd5b78138c549ae5eb1518c6e03be28c6c68b6c
Source Schema Version 1.1

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