Browsing by Subject "Clarity"

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Acoustical assessment of music halls with variable systems through objective and subjective methods: the case of Bilkent Music Hall
(2024-07) Altun, Aslı
In concert halls, the need for variable acoustics elements arises from the diverse demands posed by different types of musical performances. Previous research suggests that incorporating passive variable acoustic solutions can effectively adapt acoustical conditions to suit various musical performance needs. This research explores the challenges and potentials associated with passive variable acoustic techniques in symphonic music venues, with a focus on Bilkent Music Hall in Ankara, Türkiye. This venue serves as the main performance space for the Bilkent Symphony Orchestra (BSO) and is one of the earliest examples of variable acoustic systems. Over this case, the impact of the existing variable acoustic system for diverse musical performances such as chamber music, orchestral music, orchestral music with choir and vocal accompaniment, solo recitals, and occasional speech-oriented activities is investigated. The methodology begins with acoustical field measurements to evaluate the existing variable acoustic system at Bilkent Music Hall, which consists of operable wooden doors with fabric backing. This analysis highlights the need to investigate the contribution of interior finishing materials to excessive sound absorption at low frequencies, as one major problem of the hall. As a second step of the methodology, subjective data is collected through questionnaire and online surveys that are administered to BSO members and Bilkent Music Conservatory faculty and students. The analysis offers insights into the musicians’ acoustical experiences and acoustical preferences in relation to the venue. Later, the findings are compared with precedent cases worldwide. The final step of the study is acoustical simulations that is applied first to assess the occupied state of the hall then to evaluate the proposed design intervention for improving the acoustical comfort within the hall for different music performances.
Open Access
Effects of different lighting arrangements on space perception
(Taylor & Francis, 1999) Manav, B.; Yener, C.
The idea to improve the quality of lighting design in interior spaces has gained importance in the last years. This experimental study concentrateson the quality of lighting and the relation between lighting arrangements and perception. A room having four different lighting arrangements was prepared and the differences between the perception of the participants under each lighting arrangement was analysed. The results suggested that different lighting arrangements affect perception. Wall washing enhanced the impressions of clarity and order, cove lighting enhanced spaciousness and order and uplighting made the same space relaxing, private and pleasant.
Open Access
Effects of different lighting arrangements on space perception
(1997) Yücetaş, Banu
The importance given to the quality of lighting design has increased in recent years. This makes lighting design more an art than an engineering problem and it is closely related to the way a space is perceived. It is difficult to discuss perception as it is the subjective interpretation of a certain situation. This study concentrates on the quality of lighting and the relation between the lighting arrangements and perception. A room that has four different lighting arrangements was prepared and the differences between the perception of the participants under each lighting arrangement was analyzed in terms of the six impressions, clarity, spaciousness, relaxation, privacy, pleasantness and order. The variation in these terms due to the alterations in the lighting systems was studied. The age, gender and the eye deficiency of participants were collected as personal data and their relations to the process of perception were taken into account.