<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0188-9532</journal-id>
<journal-title><![CDATA[Revista mexicana de ingeniería biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. ing. bioméd]]></abbrev-journal-title>
<issn>0188-9532</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ingeniería Biomédica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-95322018000100065</article-id>
<article-id pub-id-type="doi">10.17488/rmib.39.1.6</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Detección Automática y Clasificación de Eventos en Sonidos Cardiopulmonares de Sujetos Saludables]]></article-title>
<article-title xml:lang="en"><![CDATA[Automatic Detection and Classification of Cardiopulmonary Events]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mayorga-Ortiz]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdez-González]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Druzgalski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zeljkovic]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Mexicali  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,California State University  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,The Lincoln University  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>USA</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>39</volume>
<numero>1</numero>
<fpage>65</fpage>
<lpage>80</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-95322018000100065&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-95322018000100065&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-95322018000100065&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La auscultación de señales basada en un estetoscopio estándar y/o electrónico no solo incluye sonidos internos del cuerpo, también incluye frecuentemente ruido externo de interferencia con componentes en el mismo rango. Esta forma de examinar es incluso afectada por los umbrales auditivos variantes de los profesionales de la salud y el grado de experiencia en reconocimiento de indicadores peculiares. Además, los resultados son a menudo caracterizados en términos cualitativos descriptivos sujetos a interpretaciones individuales. Para direccionar esta preocupación, los estudios presentados en este artículo contienen un procesamiento concurrente de las componentes dominantes de sonidos del corazón (HS) y del pulmón (HS), y una etapa de acondicionamiento que incluye la reducción de HS presente en señales LS. Específicamente, la transformada de Hilbert fue una técnica de caracterización para HS. En el caso de señales enfocadas a LS, las técnicas de detección de actividad de voz y el cálculo de umbrales de algunos componentes de los vectores acústicos de Coeficientes Cepstrales en Frecuencia Mel (MFCC), fueron útiles en la caracterización de eventos acústicos asociados. Las fases de inspiración y expiración fueron diferenciadas por medio de la sexta componente de MFCC. Con el fin de evaluar la eficiencia de esta aproximación, proponemos los Modelos Ocultos de Markov con Modelos Mesclados Gaussianos (HMM-GMM). Los resultados utilizando esta forma de detección son superiores cuando se desarrolla la clasificación con modelos HMM-GMM, la cual refleja las ventajas de la forma de detección cuantificable y clasificación sobre la aproximación clínica tradicional.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: A standard and/or electronic stethoscope based auscultatory signals include not only the internal sounds of the body but also interfering external noise often with similar frequency components. This form of examination is also affected by varying thresholds of clinical practitioner&#8217;s hearing and degree of experience in recognition of peculiar auscultatory indicators. Further, the results are often characterized in qualitative descriptive terms subject to individual&#8217;s interpretation. To address these concerns, presented studies include concurrent processing of dominant heart (HS) and lung (LS) sounds components and a conditioning stage involving HS presence reduction within LS focused signals. Specifically as determined, the Hilbert transform was a technique of choice in HS characterization. In the case of LS focused signals, the speech activity detection techniques (VAD) and the thresholds calculation of some components of acoustic vectors of Cepstral Coefficients in Mel Frequency (MFCC), were useful in characterization of associated acoustic events. The phases of inspiration and expiration were differentiated by means of the sixth component of MFCC. In order to evaluate the efficiency of this approach, we propose Hidden Markov Models with Mixed Gaussian Models (HMM-GMM). The results utilizing this form of detection are superior when performing classification with HMM-GMM models, which reflect the advantages of presented form of quantifiable detection and classification over traditional clinical approach.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Transformada de Hilbert (HT)]]></kwd>
<kwd lng="es"><![CDATA[Detección de Actividad de Voz (VAD)]]></kwd>
<kwd lng="es"><![CDATA[Modelos Mezclados Gaussianos (GMM)]]></kwd>
<kwd lng="es"><![CDATA[Modelos Ocultos de Markov (HMM)]]></kwd>
<kwd lng="en"><![CDATA[Hilbert Transform (HT)]]></kwd>
<kwd lng="en"><![CDATA[Voice Activity Detection (VAD)]]></kwd>
<kwd lng="en"><![CDATA[Mixed Gaussian Models (GMM)]]></kwd>
<kwd lng="en"><![CDATA[Hidden Markov Models (HMM)]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Azarbarzin]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Moussavi]]></surname>
<given-names><![CDATA[Z. M. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Automatic and Unsupervised Snore Sound Extraction From Respiratory Sound Signals]]></article-title>
<source><![CDATA[IEEE Transactions on Biomedical Engineering]]></source>
<year>2011</year>
<volume>58</volume>
<page-range>1156-62</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Earis]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lung sounds]]></article-title>
<source><![CDATA[Thorax]]></source>
<year>1992</year>
<volume>47</volume>
<page-range>671-2</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3.</label><nlm-citation citation-type="">
<source><![CDATA[Características mínimas de infraestructura y equipamiento de hospitales y consultorios de atención médica especializada]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B4">
<label>4.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Forgacs]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lung sounds]]></article-title>
<source><![CDATA[Br J Dis Chest]]></source>
<year>1969</year>
<volume>63</volume>
<page-range>1-12</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fiz]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jan]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<collab>x00E</collab>
<article-title xml:lang=""><![CDATA[Automatic Differentiation of Normal and Continuous Adventitious Respiratory Sounds Using Ensemble Empirical Mode Decomposition and Instantaneous Frequency]]></article-title>
<source><![CDATA[IEEE Journal of Biomedical and Health Informatics]]></source>
<year>2016</year>
<volume>20</volume>
<page-range>486-97</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kosasih]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Abeyratne]]></surname>
<given-names><![CDATA[U. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Swarnkar]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Triasih]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Wavelet Augmented Cough Analysis for Rapid Childhood Pneumonia Diagnosis]]></article-title>
<source><![CDATA[IEEE Transactions on Biomedical Engineering]]></source>
<year>2015</year>
<volume>62</volume>
<page-range>1185-94</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Herzig]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bickel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Eitan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Intrator]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monitoring Cardiac Stress Using Features Extracted From S1 Heart Sounds]]></article-title>
<source><![CDATA[IEEE Transactions on Biomedical Engineering]]></source>
<year>2015</year>
<volume>62</volume>
<page-range>1169-78</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Emmanouilidou]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[McCollum]]></surname>
<given-names><![CDATA[E. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[D. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Elhilali]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adaptive Noise Suppression of Pediatric Lung Auscultations With Real Applications to Noisy Clinical Settings in Developing Countries]]></article-title>
<source><![CDATA[IEEE Transactions on Biomedical Engineering]]></source>
<year>2015</year>
<volume>62</volume>
<page-range>2279-88</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ghaderi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Mohseni]]></surname>
<given-names><![CDATA[H. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanei]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Localizing Heart Sounds in Respiratory Signals Using Singular Spectrum Analysis]]></article-title>
<source><![CDATA[IEEE Transactions on Biomedical Engineering]]></source>
<year>2011</year>
<volume>58</volume>
<page-range>3360-7</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ji]]></surname>
<given-names><![CDATA[Chen]]></given-names>
</name>
<name>
<surname><![CDATA[Hai-Liang]]></surname>
<given-names><![CDATA[Hou]]></given-names>
</name>
<name>
<surname><![CDATA[Liang-Cai]]></surname>
<given-names><![CDATA[Luo]]></given-names>
</name>
<name>
<surname><![CDATA[Yun]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Automatic Identification Method for the First and Second Heart Sound Based on Double-threshold]]></article-title>
<source><![CDATA[Journal Computer Engineering]]></source>
<year>2012</year>
<volume>38</volume>
<page-range>174-7</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bajelani]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Navidbakhsh]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Behnam]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Doyle]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Hassani]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Detection and identification of first and second heart sounds using empirical mode decomposition]]></article-title>
<source><![CDATA[Journal of Engineering in Medicine]]></source>
<year>2013</year>
<volume>227</volume>
<page-range>976-87</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[M. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hangsik]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Localization Method for First and Second Heart Sounds Based on Energy Detection and Interval Regulation]]></article-title>
<source><![CDATA[Journal of Electrical Engineering and Technology]]></source>
<year>2015</year>
<volume>10</volume>
<page-range>2126-34</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Automatic moment segmentation and peak detection analysis of heart sound pattern via short-time modified Hilbert transform]]></article-title>
<source><![CDATA[Comput. Methods Prog. Biomed.]]></source>
<year>2014</year>
<volume>114</volume>
<page-range>219-30</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abushakra]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Faezipour]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acoustic Signal Classification of Breathing Movements to Virtually Aid Breath Regulation]]></article-title>
<source><![CDATA[IEEE Journal of Biomedical and Health Informatics]]></source>
<year>2013</year>
<volume>17</volume>
<page-range>493-500</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Devangan]]></surname>
<given-names><![CDATA[Hupendra]]></given-names>
</name>
<name>
<surname><![CDATA[Jain]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Review on Classification of Adventitious Lung Sounds]]></article-title>
<source><![CDATA[International Journal of Engineering Research &amp; Technology]]></source>
<year>2015</year>
<volume>4</volume>
</nlm-citation>
</ref>
<ref id="B16">
<label>16.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Istrate]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Detection et Reconnaissance des Sons pour la Surveillance Médicale]]></source>
<year>2003</year>
<publisher-loc><![CDATA[Grenoble, France ]]></publisher-loc>
<publisher-name><![CDATA[Institut National Polytechnique de Grenoble]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<label>17.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pearce]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Developing the ETSI Aurora advanced distributed speech recognition front- end and what next?]]></source>
<year>2001</year>
<conf-name><![CDATA[ Workshop on Automatic Speech Recognition and Understanding]]></conf-name>
<conf-date>2001</conf-date>
<conf-loc> </conf-loc>
<page-range>131-4</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18.</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mayorga]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Druzgalski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Vidales]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quantitative models for assessment of respiratory diseases]]></article-title>
<source><![CDATA[2010 Pan American Health Care Exchange (PAHCE)]]></source>
<year>2010</year>
<page-range>25-30</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mayorga]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Besacier]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Lamy]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Serignat]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Audio packet loss over IP and speech recognition]]></source>
<year>2003</year>
<conf-name><![CDATA[ Workshop on Automatic Speech Recognition and Understanding]]></conf-name>
<conf-date>2003</conf-date>
<conf-loc> </conf-loc>
<page-range>607-12</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yoon]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[G. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[H. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A MFCC-Based CELP Speech Coder for Server- Based Speech Recognition in Network Environments]]></article-title>
<source><![CDATA[IEICE Trans. Fundam. Electron. Commun. Comput. Sci.]]></source>
<year>2007</year>
<volume>E90-A</volume>
<page-range>626-32</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mayorga]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Druzgalski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[O. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[H. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modified classification of normal Lung Sounds applying Quantile Vectors]]></article-title>
<source><![CDATA[Engineering in Medicine and Biology Society (EMBC)]]></source>
<year>2012</year>
<page-range>4262-5</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Echeverry]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[A. F.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reconocimiento de valvulopatías cardíacas en señales de fonocardiografía empleando la transformada Gabor]]></article-title>
<source><![CDATA[Scientia Et Technica]]></source>
<year>2007</year>
<volume>XIII</volume>
<page-range>139-44</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[P.]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[M.]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[H.]]></surname>
<given-names><![CDATA[G. O.]]></given-names>
</name>
<name>
<surname><![CDATA[N.]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[V.]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quantile Acoustic Vectors vs. MFCC Applied to Speaker Verification]]></article-title>
<source><![CDATA[International Journal of Advanced Robotic Systems]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B24">
<label>24.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mondal]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhattacharya]]></surname>
<given-names><![CDATA[P. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Saha]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[oundary estimation of cardiac events S1 and S2 based on Hilbert transform and adaptive thresholding approach]]></source>
<year>2013</year>
<conf-name><![CDATA[ 2013 Indian Conference on Medical Informatics and Telemedicine (ICMIT)]]></conf-name>
<conf-loc> </conf-loc>
<page-range>43-7</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jongseo Sohn]]></surname>
<given-names><![CDATA[N. S. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Sung]]></surname>
<given-names><![CDATA[Wonyong]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Statistical Model-Based Voice Activity Detection]]></article-title>
<source><![CDATA[IEEE Signal Processing Letters]]></source>
<year>1999</year>
<volume>6</volume>
</nlm-citation>
</ref>
<ref id="B26">
<label>26.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[A.]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Faezipour]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acoustic Signal Classification of Breathing Movements to Virtually Aid Breath Regulation]]></article-title>
<source><![CDATA[IEEE Journal of Biomedical and Health Informatics]]></source>
<year>2013</year>
<volume>17</volume>
</nlm-citation>
</ref>
<ref id="B27">
<label>27.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mayorga Ortiz]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Druzgalski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Criollo Arellano]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[González Arriaga]]></surname>
<given-names><![CDATA[O. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[GMM y LDA aplicado a la detección de enfermedades pulmonares]]></article-title>
<source><![CDATA[Revista mexicana de ingeniería biomédica]]></source>
<year>2013</year>
<volume>34</volume>
<page-range>131-44</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28.</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[W. L]]></given-names>
</name>
<name>
<surname><![CDATA[M.]]></surname>
<given-names><![CDATA[A. R]]></given-names>
</name>
</person-group>
<source><![CDATA[Computational Statistics Handbook with Matlab]]></source>
<year>2008</year>
<edition>Second</edition>
</nlm-citation>
</ref>
<ref id="B29">
<label>29.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosca]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Independent component analysis and blind signal separation]]></source>
<year>2006</year>
<conf-name><![CDATA[ 6international conference, ICA 2006]]></conf-name>
<conf-date>March 5-8, 2006</conf-date>
<conf-loc>Charleston, SC, USA </conf-loc>
<publisher-loc><![CDATA[Berlin ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<label>30.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kannadaguli]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[A comparison of Gaussian Mixture Modeling (GMM) and Hidden Markov Modeling (HMM) based approaches for Automatic Phoneme Recognition in Kannada]]></source>
<year>2015</year>
<conf-name><![CDATA[ International Conference on Signal Processing and Communication (ICSC)]]></conf-name>
<conf-loc> </conf-loc>
<page-range>257-60</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rabiner]]></surname>
<given-names><![CDATA[L. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Juang]]></surname>
<given-names><![CDATA[B. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fundamentals of speech recognition]]></source>
<year>1993</year>
<publisher-loc><![CDATA[Englewood Cliffs, N.J. ]]></publisher-loc>
<publisher-name><![CDATA[PTR Prentice Hall,]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<label>32.</label><nlm-citation citation-type="">
<collab>RALE</collab>
<source><![CDATA[Lung Sounds Repository]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B33">
<label>33.</label><nlm-citation citation-type="">
<source><![CDATA[Texas Heart Institute]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B34">
<label>34.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mayorga]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Druzgalski]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gonzalez]]></surname>
<given-names><![CDATA[O. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Zazueta]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Criollo]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Expanded quantitative models for assessment of respiratory diseases and monitoring]]></source>
<year>2011</year>
<conf-name><![CDATA[ Pan American Health Care Exchange (PAHCE)]]></conf-name>
<conf-loc> </conf-loc>
<page-range>317-22</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
