Pitch Synchronous Segmentation of Speech Signals

Metadata Updated: May 2, 2019

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: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_10740
Maintainer Email
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
Datagov Dedupe Retained 20190501230127
Harvest Object Id 68be2a3b-a5d4-45d8-9dd0-b0009741ff5c
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2012-04-01
Homepage URL https://techport.nasa.gov/view/10740
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash b176920f315f5dc4245eaf42aebea776f63e0583
Source Schema Version 1.1

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