A simple method to obtain basic acoustic measures as video subtitles in laryngeal videoendoscopic recordings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73587976" target="_blank" >RIV/61989592:15310/18:73587976 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1044/2018_JSLHR-S-17-0472" target="_blank" >http://dx.doi.org/10.1044/2018_JSLHR-S-17-0472</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1044/2018_JSLHR-S-17-0472" target="_blank" >10.1044/2018_JSLHR-S-17-0472</a>
Alternative languages
Result language
angličtina
Original language name
A simple method to obtain basic acoustic measures as video subtitles in laryngeal videoendoscopic recordings
Original language description
Purpose Sound pressure level (SPL) and fundamental frequency (fo) are very basic and important measures in the acoustical assessment of voice quality, and their variation influences also the vocal fold vibration characteristics. Most sophisticated laryngeal videostroboscopic systems therefore also measure and display the SPL and fo values directly over the video frames by means of a rather expensive special hardware setup. An alternative simple software-based method is presented here to obtain these measures as video subtitles.Method The software extracts acoustic data from the video recording, calculates the SPL and fo parameters, and saves their values in a separate subtitle file. To ensure the correct SPL values, the microphone signal is calibrated beforehand with a sound level meter.Results The new approach was tested on videokymographic recordings obtained laryngoscopically. The results of SPL and fo values calculated from the videokymographic recording, subtitles creation, and their display are presented.Conclusions This method is useful in integrating the acoustic measures with any kind of video recordings containing audio data when inbuilt hardware means are not available. However, calibration and other technical aspects related to data acquisition and synchronization described in this article should be properly taken care of during the recording.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10610 - Biophysics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
ISSN
1092-4388
e-ISSN
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Volume of the periodical
61
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
887-905
UT code for WoS article
000444983700004
EID of the result in the Scopus database
2-s2.0-85053696298