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Tytuł:
Sounds in space: the potential uses for acoustics in the exploration of other worlds
Autorzy:
Leighton, T.
Petculescu, A.
Powiązania:
https://bibliotekanauki.pl/articles/331578.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
sounds in space
acoustics
acoustical models
Opis:
This paper examines the past and future uses for acoustics in space research. Whilst on the larger scales in some topic areas, acoustical models have proved to be useful in extraterrestrial research, in other areas there has been not so much use made of acoustical techniques. One particular area where greater use might be made of acoustical sensors is in the deployment of acoustical sensors on probes sent out to other moons and planets. This is surprising given that acoustical sensors deliver benefits that are particularly useful for planetary probes, in terms of weight, bandwidth, ruggedness and cost. Whilst geoacoustical data could be obtained from many bodies, those which contain a dense atmosphere or an ocean offer intriguing additional possibilities. Examples from Mars, Venus, Titan, Enceladus and Europa will be discussed.
Źródło:
Hydroacoustics; 2008, 11; 225-239
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection and Recognition of Environmental Sounds by Musicians and Non-Musicians
Autorzy:
Miśkiewicz, A.
Rościszewska, T.
Żera, J.
Majer, J.
Okoń-Makowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/176313.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environmental sounds
detection threshold
recognition threshold
Opis:
The article reports three experiments conducted to determine whether musicians possess better ability of recognising the sources of natural sounds than non-musicians. The study was inspired by reports which indicate that musical training develops not only musical hearing, but also enhances various non-musical auditory capabilities. Recognition and detection thresholds were measured for recordings of environment al sounds presented in quiet (Experiment 1) and in the background of a noise masker (Experiment 2). The listener’s ability of sound source recognition was inferred from the recognition-detection threshold gap (RDTG) defined as the difference in signal level between the thresholds of sound recognition and sound detection. Contrary to what was expected from reports of enhanced auditory abilities of musicians, the RDTGs were not smaller for musicians than for non-musicians. In Experiment 3, detection thresholds were measured with an adaptive procedure comprising three interleaved stimulus tracks with different sounds. It was found that the threshold elevation caused by stimulus interleaving was similar for musicians and non-musicians. The lack of superiority of musicians over non-musicians in the auditory tasks Explorer in this study is explained in terms of a listening strategy known as casual listening mode, which is a basis for auditory orientation in the environment.
Źródło:
Archives of Acoustics; 2018, 43, 4; 581-592
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pitch Strength of Residual Sounds Estimated Through Chroma Recognition by Absolute-Pitch Possessors
Autorzy:
Rogowski, P.
Rakowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/177930.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
absolute pitch
residual sounds
virtual pitch
Opis:
Absolute pitch is a unique feature of the auditory memory which makes it possible for its possessors to recognize the musical name (chroma) of a tone. Six musicians with absolute pitch, selected from a group of 250 music students as best scoring in musical pitch-naming tests, identified the chroma of residue pitch produced by harmonic complex tones with several lower partials removed (residual sounds). The data show that the percentage of correct chroma recognitions decreases as the lowest physically existent harmonic in the spectrum is moved higher. According to our underlying hypothesis the percentage of correct chroma recognitions corresponds to the pitch strength of the investigated tones. The present results are compared with pitch strength values derived in an experiment reported by Houtsma and Smurzynski (1990) for tones same as those used in this study but investigated with the use of a different method which consisted in identification of musical intervals between two successive tones. For sounds comprising only harmonics of very high order the new method yields a very low pitch recognition level of about 20% while identification of musical intervals remains stable at a level of about 60%.
Źródło:
Archives of Acoustics; 2010, 35, 3; 331-347
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acoustic Influence of Vehicles on a Protected Natural Area in the Southwest of the Iberian Peninsula
Autorzy:
Sánchez-Sánchez, R.
Fortes-Garrido, J. C.
Bolívar, J. P.
Powiązania:
https://bibliotekanauki.pl/articles/176775.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
natural sounds
soundscapes
noise
protected natural area
Opis:
Natural sounds are essential elements for ecosystems, and therefore necessary for many ecological functions, forming what is called “natural soundscapes”. The Natural Reserve Laguna del Portil (NRLP), located in the southwest of the Iberian Peninsula, is an ecosystem which was declared by Spanish authorities as Protected Natural Reserve. In the south area of the NRLP, there is a regional road with high traffic intensity, which affects the soundscapes of this natural reserve. In this study, the road potential noise impact on the natural sounds of the NLRP is analysed. This analysis was done both in winter and summer, and also using two independent methods: 1) spatial sampling measures in 43 different points of the NRL; and 2) noise mapping using noise levels prediction software. From the comparison of the results of both methods and seasons the following conclusions were reached: 1) an approach to the natural soundscape of NRLP both in winter and summer, 2) the acoustic impact of the road on the NRLP, and 3) the variation of the traffic noise depending on the distance to the road, and its seasonal variation. This study could be to improve the management of the NRLP and to help to preserve the natural soundscape of the reserve.
Źródło:
Archives of Acoustics; 2018, 43, 2; 177-185
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Virtual Sound Localization by Blind People
Autorzy:
Dunai, L.
Lengua, I.
Peris-Fajarnés, G.
Brusola, F.
Powiązania:
https://bibliotekanauki.pl/articles/178022.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
virtual sounds
localization
distance
azimuth
blind people
Opis:
The paper demonstrates that blind people localize sounds more accurately than sighted people by using monaural and/or binaural cues. In the experiment, blind people participated in two tests; the first one took place in the laboratory and the second one in the real environment under different noise conditions. A simple click sound was employed and processed with non-individual head related transfer functions. The sounds were delivered by a system with a maximum azimuth of 32° to the left side and 32° to the right side of the participant’s head at a distance ranging from 0.3 m up to 5 m. The present paper describes the experimental methods and results of virtual sound localization by blind people through the use of a simple electronic travel aid based on an infrared laser pulse and the time of flight distance measurement principle. The lack of vision is often compensated by other perceptual abilities, such as the tactile or hearing ability. The results show that blind people easily perceive and localize binaural sounds and assimilate them with sounds from the environment.
Źródło:
Archives of Acoustics; 2015, 40, 4; 561-567
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Warsaw soundscape - structure and specifics
Autorzy:
Romanowska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2037663.pdf
Data publikacji:
2015-01-10
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Soundscape
acoustic environment
Warsaw
survey
specific sounds
Opis:
The Warsaw soundscape has been examined according to the principles of acoustic ecology. The soundscape is the acoustic environment tested primarily by qualitative research. Warsaw residents were asked in a survey about their sound impressions and requirements for the Warsaw soundscape. The aim of this research was to learn both the conditions of acoustic environment and the needs of space users in accordance with the space category. The present and expected sound structures of five different categories of space were examined (residential areas, streets, city centre, tourist areas and green areas). Information on both the specific Warsaw sounds and the ideas for new sounds (which could be introduced into the city) was collected.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2014, 18, 4; 5-16
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cadaver as a didactic tool for auscultating lung sounds
Ludzkie zwłoki jako narzędzie dydaktyczne w osłuchiwaniu płuc
Autorzy:
Bakalarski, Paweł
Klepacka, Monika
Sówka, Karolina
Bojko, Izabela
Głowala, Damian
Bodecot, Bastien
Pinet Peralta, Luis M.
Powiązania:
https://bibliotekanauki.pl/articles/1033046.pdf
Data publikacji:
2019
Wydawca:
Towarzystwo Pomocy Doraźnej
Tematy:
Pulmonary auscultation
cadavers
education
learning
lung sounds
Opis:
INTRODUCTION: Lung auscultation is one of the basic physical examination tests both in the pre-hospital and hospital settings and should be performed on any patient who has problems with the respiratory system. Depending on the condition, clinicians can hear different breathing sounds. Our aim is to assess the effectiveness of lung auscultation on cadavers. MATERIAL AND METHODS: The study was conducted in October 2018, among 27 Emergency Medical Services (EMS) students at the University of Natural Sciences and Humanities in Siedlce. The research tool used in this study was prepared human cadaver. Students listened to four pulmonary fields (apices and bases) using a stethoscope. RESULTS: The study included 27 students with an average age of 21.76 (SD ± 3.20). The average auscultation results were: right lung at the apex - 59.26% (SD ± 49.14), right lung at the base - 96.30% (SD ± 18.89), left lung at the apex - 40.74% (SD ± 49 , 14), left lung at the base - 77.78% (SD ± 41.57). The average satisfaction score on a scale from 1 to 5 was 4.37 points (SD ± 1.13). CONCLUSIONS: The study showed that conducting classes on mannequins is not sufficient for effective auscultation of pulmonary fields, which could probably be obtained through practice on cadavers. Students showed a high level of satisfaction with participation in the study. In order to improve the quality of students’ education and practical skills, periodic classes oncadavers should be conducted.
WSTĘP: Osłuchiwanie płuc jest jednym z podstawowych badań zarówno w warunkach przedszpitalnych jak i w trakcie hospitalizacji. Należy je wykonać u każdego pacjenta, u którego występują problemy z układem oddechowym. W zależności od obecnego schorzenia, można usłyszeć różne szmery oddechowe. Celem publikacji jest ocena efektywności osłuchiwania płuc na kadawerach. MATERIAŁ I METODY: Badanie przeprowadzono w październiku 2018 roku, wśród 27 studentów ratownictwa medycznego Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach. Narzędziem badawczym był preparat ludzkiego korpusu, który wcześniej został odpowiednio przygotowany. Studenci przy użyciu stetoskopu osłuchiwali cztery pola płucne (szczyty i podstawy). WYNIKI: W badaniu wzięło udział 27 studentów, u których średnia wieku wyniosła 21.76 (SD ± 3.20). Średnie wyniki osłuchiwania wyniosły: prawe płuco u szczytu – 59,26 % (SD ± 49,14), prawe płuco u podstawy – 96.30 % (SD ± 18,89), lewe płuco u szczytu – 40,74 % (SD ± 49,14), lewe płuco u podstawy – 77,78 % (SD ± 41,57). Średni wynik poziomu satysfakcji w skali od 1 do 5 wyniósł 4,37pkt (SD ± 1,13). WNIOSKI: Badanie wykazało, iż prowadzenie zajęć na fantomach nie jest wystarczające pod względem odpowiedniego przygotowania studentów do efektywnego osłuchiwania pól płucnych, co prawdopodobnie można by było uzyskać poprzez ćwiczenia na kadawerach. Studenci wykazali wysoki poziom satysfakcji z udziału w badaniu. Należy poszukać rozwiązań umożliwiających okresowe prowadzenie zajęć na kadawerach dla studentów w celu podnoszenia jakości ich kształcenia i umiejętności praktycznych.
Źródło:
Critical Care Innovations; 2019, 2, 3; 11-18
2545-2533
Pojawia się w:
Critical Care Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
MUSIC IN THE FIELD OF POLITICAL SCIENCE RESEARCH QUESTIONS AND TRENDS
Autorzy:
Massaka, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/594783.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
music
music and politics
theory of politics
sounds
democracy
Opis:
Research on relations between art and politics has its tradition. However, it mainly refers to literature, whose part, as far as its authors’ intentions are concerned, is of a political character, in a lesser degree – of a picture. Sound, especially if it is not linked to a text and/or a picture, is considerably more seldom analyzed from the point of view of its importance in politics. As long as a word and a picture happen to convey unequivocal political meaning, qualified as such by most recipients, sound cannot be obviously considered a political message. It is questionable whether music can convey any meaning in whatever sense. If one can manage to suppress this doubt, it will result in a question how to construe the senses conveyed through the medium of melodic – rhythmic structures. However, the findings in the field of widely understood humanities affirm that music serves as a creator’s message directed to both individual and collective receivers. Political science studies often bring up a matter of communication between authorities and the subjects (in authoritarian regimes), and also between representatives of a nation or people claiming their role and electorate (in democratic regimes). At the end of the 1960s, American and Canadian scientists made room for music, one of the most widespread communicators, i. a. in political sphere. At that time, interdisciplinary teams including American sociologists, political scientists, culture and media experts undertook.
Źródło:
Polish Political Science Yearbook; 2013, 42; 317-330
0208-7375
Pojawia się w:
Polish Political Science Yearbook
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Loudness Assessment of Musical Tones Equalized in A-weighted Level
Autorzy:
Klonari, D.
Pastiadis, K.
Papadelis, G.
Papanikolaou, G.
Powiązania:
https://bibliotekanauki.pl/articles/177354.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
loudness perception
A-weighted level equalization
wind instrument sounds
Opis:
The present study was carried out to determine whether recorded musical tones played at various pitches on a clarinet, a flute, an oboe, and a trumpet are perceived as being equal in loudness when presented to listeners at the same A-weighted level. This psychophysical investigation showed systematic effects of both instrument type and pitch that could be related to spectral properties of the sounds under consideration. Level adjustments that were needed to equalize loudness well exceeded typical values of JNDs for signal level, thus confirming the insufficiency of A-weighting as a loudness predictor for musical sounds. Consequently, the use of elaborate computational prediction is stressed, in view of the necessity for thorough investigation of factors affecting the perception of loudness of musical sounds.
Źródło:
Archives of Acoustics; 2011, 36, 2; 239-250
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The rhotic in fake and authentic Polish-accented English
Autorzy:
Szpyra-Kozłowska, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/605480.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
rhotics
r-sounds
Polish-accented English
fake foreign accent
authentic foreign accent
Opis:
Der Band enthält die Abstracts ausschließlich in englischer Sprache.
The paper examines and compares the realization of the rhotic consonant /r/ in fake and genuine Polish-accented English. The former variety is represented by the speech of several actors of different nationalities featuring in the 2017 American film The Zookeeper’s Wife, the latter is analysed on the basis of speech samples provided by 25 teenage Polish learners of English. We focus on the rhoticity vs nonrhoticity of the examined accents and the phonetic realizations of /r/ in order to draw conclusions concerning the authenticity of Polish English pronunciation in American films.
Le numéro contient uniquement les résumés en anglais.
Том не содержит аннотаций на английском языке.
Źródło:
Lublin Studies in Modern Languages and Literature; 2018, 42, 1
0137-4699
Pojawia się w:
Lublin Studies in Modern Languages and Literature
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Bilingualism on the Production of Stop Consonants in L1 (Arabic) and L2 (English): Acoustic Analysis of Stop’s Closure Duration
Autorzy:
Abunima, Somaya
Alshamiri, Sumaya Faisal
Hamid, Shahidi A.
Jaafar, Sharifah Raihan Syed
Refaat, Alareer
Powiązania:
https://bibliotekanauki.pl/articles/2196931.pdf
Data publikacji:
2022-10-06
Wydawca:
Komisja Nauk Filologicznych Polskiej Akademii Nauk, Oddział we Wrocławiu
Tematy:
acoustic analysis
language interaction
stop sounds
Arabic-English bilinguals
pronunciation
difficulties
closure duration
Opis:
This paper investigates the impact of bilingualism on the difficulties of pronunciation for both L1 (Arabic) and L2 (English). It assesses the production of stop sounds in Arabic and English through an acoustic analysis of stops' closure duration (henceforth CD), as pronounced by Arabic-English bilinguals whose L1 is Palestinian Arabic. Additionally, the paper aims to highlight the difficulties of pronunciation in both languages. Three groups of same aged adult subjects participated in the production tests; 1) Arabic-English bilinguals whose L1 is Palestinian Arabic, 2) Arabic-monolinguals, and 3) English-monolinguals. The stops in word-medial and final positions were included in closed syllables (CVC) in meaningful words inserted in carrier sentences. The results revealed that the CD of the interaction of stops was represented in four categories; 1) unidirectional effect of L1 on L2 that caused a foreign accent, 2) bidirectional influence resulting in L1-L2 interference, 3) unidirectional impact of L2 on L1, and 4) nativelikeness in both languages without language interference. In addition, the findings showed that bilinguals faced pronunciation challenges in both similar and dissimilar sounds. This paper is expected to initiate more comprehensive studies in the field of interaction between Arabic and English in the Arabic context.
Źródło:
Academic Journal of Modern Philology; 2022, 15; 7-19
2299-7164
2353-3218
Pojawia się w:
Academic Journal of Modern Philology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New vs. similar sound production accuracy: The uneven fight
Autorzy:
Sypiańska, Jolanta
Constantin, Elena-Raluca
Powiązania:
https://bibliotekanauki.pl/articles/2135324.pdf
Data publikacji:
2021-09-25
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
new and similar sounds
schwa
production accuracy
foreign accent rating
level of proficiency
Opis:
The Speech Learning Model states that the process of equivalence classification reduces the accuracy of a similar L2 sound by forming an L1-L2 merged category whereas new sounds tend to be pronounced with greater accuracy due to lack of perceptual linkage with an L1 category (Flege 1995). We found further support for this differentiation in the production of the canonical schwa as a new sound by L1 Polish/L2 English speakers and as a similar sound by L1 Romanian/L2 English speakers, who produced an L1-L2 schwa merger. The aim of the current paper is to further investigate the production accuracy of new and similar sounds. First of all, a control group that consisted of native Romanian speakers was used to analyse the L1-L2 similar sound merger. Secondly, a measure of overall pronunciation ability based on foreign accent ratings (FAR) was included. The results confirm that production accuracy for new sounds is much greater than for similar sounds which form merged diaphones with the equivalent L1 sound. As a result, neither sound is produced on target when compared to a native speaker reference. Moreover, new sound production accuracy benefits much more from an increase in general proficiency and overall L2 pronunciation ability.
Źródło:
Yearbook of the Poznań Linguistic Meeting; 2021, 7, 1; 155-179
2449-7525
Pojawia się w:
Yearbook of the Poznań Linguistic Meeting
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of sounds on posture control
Autorzy:
Siedlecka, B.
Sobera, M.
Sikora, A.
Drzewowska, I.
Powiązania:
https://bibliotekanauki.pl/articles/306857.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
sygnał dźwiękowy
kontrola postawy ciała
COP
stabilność
sounds
posture control
healthy adults
stability improvement
Opis:
Purpose: It is still not clear which parameters of sound are the most significant for body reactions and whether the way of sound reception plays a role in body control. The purpose of this study was to determine the influence of frequency, spectrum and loudness of sounds on posture control in healthy women and men. Methods: The study subjects were 29 young adults who were submitted to a 60-second standing test in the bipedal stance on the force platform (AMTI). During the tests, 3 sinusoidal sounds with various timing and 2 musical sounds (guitar and piano) of the frequency 225 Hz, 1000 Hz and 4000 Hz were applied through headphones. The centre of pressure (COP) amplitude was registered. The sway area and COP mean velocity were computed. Results: It was found that high frequency sounds contributed to a significant decrease of sway area values. No significant influence of low frequency sounds on posture control was observed. The influence of the sound spectrum (timbre) on posture control is limited; only the crescendo spectrum improves the body stability in the bipedal stance and not the music spectrum as guitar and piano. The loudness of sound, although extremely high, is not the cause of postural control changing in relation to lower loudness. No effect of gender was found in terms of body stability under different sound conditions. Conclusion. Based on the results, it can be argued that, in general, in a bipedal stance in terms of stability high sound frequency improves posture control, whereas sound spectrum and intensity show a limited impact.
Źródło:
Acta of Bioengineering and Biomechanics; 2015, 17, 3; 95-102
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Usefulness of the matching pursuit method in phonocardiographic signal analysis
Autorzy:
Damps, Natalia
Kłaczyński, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2146641.pdf
Data publikacji:
2021
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
heart sounds
phonocardiographic signal
matching pursuit
stethoscope
tony serca
sygnał fonokardiograficzny
poszukiwanie dopasowujące
stetoskop
Opis:
This paper presents a phonocardiographic signal analysis with special emphasis on the Matching Pursuit method. To the knowledge of the authors, this method has not been used before to analyze PCG (phonocardiogram) signals. For this reason, its usefulness for this signal type was tested and a dictionary of Gabor atoms was created. Based on these findings, PCG signal analysis was performed as a Wigner-Ville distribution and compared with a spectrogram. Observing the obtained graphs, it was found that the Wigner-Ville map gives more detailed information about the frequencies which make up the given signal and the time of their occurrence. This method can be used to detect anomalies and pathologies of the heart.
Źródło:
Vibrations in Physical Systems; 2021, 32, 1; art. no. 2021102
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficient Covid-19 disease diagnosis based on cough signal processing and supervised machine learning
Autorzy:
Bensid, Khaled
Lati, Abdelhai
Benlamoudi, Azeddine
Ghouar, Brahim Elkhalil
Senoussi, Mohammed Larbi
Powiązania:
https://bibliotekanauki.pl/articles/2174478.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
voice disease
Covid-19
cough sounds
features extraction
classification
ekstrakcja cech
klasyfikacja
kaszel
przetwarzanie sygnału
uczenie maszynowe
Opis:
The spread of the coronavirus has claimed the lives of millions worldwide, which led to the emergence of an economic and health crisis at the global level, which prompted many researchers to submit proposals for early diagnosis of the coronavirus to limit its spread. In this work, we propose an automated system to detect COVID-19 based on the cough as one of the most important infection indicators. Several studies have shown that coughing accounts for 65% of the total symptoms of infection. The proposed system is mainly based on three main steps: first, cough signal detection and segmentation; second, cough signal extraction; and third, three techniques of supervised machine learning-based classification: Support Vector Machine (SVM), KNearest Neighbours (KNN), and Decision Tree (DT). Our proposed system showed high performance through good accuracy values, where the best accuracy for classifying female coughs was 99.6% using KNN and 88% for males using SVM.
Źródło:
Diagnostyka; 2023, 24, 1; art. no. 2023103
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
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