Subjective evaluation of acoustics was studied by recording nine concert halls with a simulated symphony orchestra on a seat 12 m from the orchestra. The recorded music was spatially reproduced for subjective listening tests and individual vocabulary profiling. In addition, the preferences of the assessors and objective parameters were gathered. The results show that concert halls were discrimi...

The study of hall acoustics continues to suffer from the difficulties of obtaining accurate measurements of halls in the presence of audience and musicians. An effective measurement technique must be fast, accurate, pleasant, and entertaining. It has become routine to measure unoccupied halls using a Maximum Length Sequence (MLS) as a stimulus. Originally chosen because MLS stimuli can be decon...

This paper describes the development and evaluation of a blended learning resource in the biosciences, created by combining online learning with formal face-face lectures and supported by formative assessments. In order to improve the effectiveness and efficiency of teaching large classes with mixed student cohorts, teaching was delivered through a variety of media which included three main com...

* Specialist on Otorrhinolaryngology and ENT Surgery; PhD student on Otorrhinolaryngology at Faculdade de Medicina da Universidade de São Paulo. Assitant Medical Doctor of the Otorrhinolaryngology and ENT Surgery Clinic at Hospital do Servidor Público Estadual de São Paulo. ** Medical Residence. Otorrhinolaryngology and ENT Surgery Clinic at Hospital do Servidor Público Estadual de São Paulo. *...

The layout design of distribution center should be considered as a smart decision system that includes the number of customers, demand forecasting, product groups, condition of product conservation, warehousing, transportation management etc. Decision support systems are used on a lot of stages of the layout of the distribution center which is handled as a whole. In this study, the layout of th...

Surveys among professional musicians and sound engineers reveal that a long reverberation time at low frequencies in halls during concerts of reinforced music is a common cause for an unacceptable sounding event. Midand high-frequency sound is seldom a reason for lack of clarity and definition due to a up to 6 times higher absorption by audience compared to low frequencies, and a higher directi...

by Coralie Emile Halls, Ph.D. Washington State University