Vol. 26 No. 43 (2011): Acústica e Vibrações 43

Editorial

It was with great pleasure that the Board of SOBRAC – North Regional took on the task of editing this issue of Revista Acústica & Vibrações. This decision was based on the commitment previously made to preside over the XXIV Congress of the Brazilian Society of Acoustics (SOBRAC 2012), which will take place for the first time in the North region, and the construction of this issue of the Journal was seen as part of this Regional's contribution to the
members across the country.

For the composition of the magazine, articles were requested from the entire Brazilian community of professionals who contribute to the areas of vibrations and acoustics. Thus, this issue of the Journal is significantly representative of the aforementioned areas of knowledge, as it contains articles from all regions of Brazil. During the process of reviewing the articles, there was an opportunity to alert the entire community about the need to deepen the discussion on the terminology used in vibrations and acoustics in Brazil. In this edition, fruitful and interesting debates emerged on terms such as “auralization” and “aurilization”, both accepted as valid with respect to the dimensions of each author, or even “diffusion”, “diffusivity” and “diffusibility”. We invite everyone to embrace the construction of appropriate terminology.

The editors sincerely thank the SOBRAC Presidency for the invitation to carry out this edition of the Journal and to all the people who sent articles, making this realization possible. Finally, they emphasize the immense expectation of being able to receive them in Belém-PA at SOBRAC 2012, an event that (literally) will mark the advance of the frontiers of Acústica & Vibrações of Brazil.

Newton Sure Soeiro
Gustavo da Silva Vieira de Melo

Summary content:

• Qualification and Professional Competence in Acoustics: requirements of an expanding market;
• Noise Attenuation in Forced Ventilation in Residences: experimental analysis of an innovative prototype;
• Computation of Binaural Impulse Responses Via Artificial Neural Networks: a new technique to generate auralizations;
• Acoustic Performance Criteria in Residential Buildings;
• Noise Impact of the Implementation of the Salvador Metro on Adjacent Buildings Considering the Effects on the Population;
• Mitigation of Noise Levels in Schools;
• Simulations and Acoustic Measurements of a Cavity Adopted as a Reference in Vibro-acoustic Studies;
• Vibrations and the Human Body: an occupational assessment;
• International Noise Awareness Day – INAD – 2011 edition in Brazil;
• 1st Vibration and Acoustics Workshop in the North Region – Tucuruí-PA;
• Sobrac promotes historic meeting in São Paulo; and
• XXIV Meeting of the Brazilian Society of Acoustics –Belém – PA – 29/05 to 01/06/2012.