Canadian Acoustics https://jcaa.caa-aca.ca/index.php/jcaa <p>This quarterly journal is free to individual members of the Canadian Acoustical Association (CAA) and institutional subscribers. Since 1982 <strong>Canadian Acoustics</strong> journal publishes refereed articles and news items on all aspects of acoustics and vibration. It also includes information on research, reviews, news, employment, new products, activities, discussions, etc. for the whole acoustics community in Canada. Papers reporting new results and applications, as well as review or tutorial papers and shorter research notes are welcomed, in English or in French.</p> en-US <p>Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future) <br>i)&nbsp;&nbsp; &nbsp;to publish, reproduce, distribute, display and store the Contribution;<br>ii)&nbsp;&nbsp; &nbsp;to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;<br>iii)&nbsp;&nbsp; &nbsp;to exploit all subsidiary rights in the Contribution,<br>iv)&nbsp;&nbsp; &nbsp;to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;<br>v)&nbsp;&nbsp; &nbsp;to licence any third party to do any or all of the above.<br><br></p> editor@caa-aca.ca (Prof. Umberto Berardi) Sun, 13 Dec 2020 00:00:00 +0000 OJS 3.2.0.3 http://blogs.law.harvard.edu/tech/rss 60 Acoustic Study of the Emphatic Occlusive [?] In School-going Children With Cleft Palate or Labio-Palatine https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3426 <p class="Abstract"><span lang="EN-US">This acoustic study aims to analyze the emphatic phoneme [?] produced by school children operated on for&nbsp;the&nbsp;cleft palate or lip-palate, in order to assess vocal characteristics. It is important to make available to the speech therapist many concrete analyzes of voice and speech, for a better care of school children and thus to avoid the serious consequences on the psychic, academic and also social and professional development of these children. The choice of this study was dictated by the great difficulty found in the pronunciation of this specific phoneme in Arabic by Algerian schoolchilren&nbsp;with cleft palates and labial-palate. To carry out our study, several acoustic parameters were studied. The fundamental frequency F0, the first three formants F1, F2 and F3, the energy E0, the Voice Onset Time (VOT), the duration CV, as well as the duration V of the subsequent vowel [a]. To complete our analysis, we also used other important parameters in the field of pathological speech, namely the degree of disturbance of F0 (Jitter), the degree of disturbance of intensity (Shimmer) and the HNR (Harmonics to Noise Ratio). Obtained results show a disturbance of the values of F1, F2 and F3 and a stability of the values of F0. Another important aspect observed is the increase in the value of the VOT for the three types of slits, due to the difficulties of controlling occlusive closure and the subsequent loosening. </span></p> Khaled Baaziz, Mhania Guerti , HIMA Abdelkader Copyright (c) https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3426 THE ACOUSTICS OF THE CASSINO ROMAN THEATRE https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3425 <p>In this paper, the acoustic characteristics of the ancient Roman theater of Cassino are discussed. The theatre was built during the Imperial Age and was abandoned and destroyed after the Barbaric invasions. The theatre has been rebuilt in recent years and it is currently used for summer events ad performance. To measure the acoustic characteristics of this ancient theatre, the authors used a sound source placed on the stage and in the orchestra. The results show that nowadays the theatre has a short reverberation time probably due to the lack of the stage wall, which has not been rebuilt. The weak sound strength justifies the use of electro-acoustic amplification systems which during the summer season, are adopted to improve the acoustic experience in this ancient theatre</p> Gino Iannace Copyright (c) https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3425 Acoustic Week in Canada 2021 Sherbrooke Conference Announcement https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3424 <p class="p1"><span class="s1">Acoustics Week in Canada 2021 will be held on October 6-8, in Sherbrooke, Québec.</span></p> <p class="p1"><span class="s1">&nbsp;You are invited to be part of this three-day conference featuring the latest developments in Canadian acoustics and vibration. Sherbrooke is well known in acoustics for the Groupe d’Acoustique de l’Université de Sherbrooke (GAUS) founded in 1984.</span></p> <p class="p1"><span class="s1">The conference will be an excellent opportunity to visit or rediscover the GAUS during the International Year of Sound!</span></p> Olivier Robin Copyright (c) 2020 Olivier Robin https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3424 Sun, 13 Dec 2020 00:00:00 +0000 2021 CAA Prizes Announcement https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3423 Joana Rocha Copyright (c) 2020 Joana Rocha https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3423 Sun, 13 Dec 2020 00:00:00 +0000 2020 CAA Awards Winners https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3422 Joana Rocha Copyright (c) 2020 Joana Rocha https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3422 Sun, 13 Dec 2020 00:00:00 +0000