Short Reverberation Time Measurement

Acoustic Study of an Auditorium by the Determination of Reverberation Time and Speech Transmission Index

The quality of the communication between teachers and students and ultimately, of classroom education itself, is closely linked to the acoustic quality of the auditorium. This acoustic quality can be characterized based on the reverberation time (RT), speech transmission index (STI) and the sound insulation. In this context, an acoustic study was conducted in an auditorium located in the Higher...

Evaluation of estimation models for acoustic reverberation time in educational and office environments

Noise pollution is considered as one of the most annoying factors in educational and office environments. In these environments where learning processes and intellectual activities are ongoing, an effective acoustic design is necessary. The aim of this paper is to assess the reverberation time as one of the important indicators in describing the acoustic characteristics of rooms. In this study,...

Comparing Reverberation Time in West Churches and Mosques of Qajar Era in Tabriz

A Pitch-Based Method for the Estimation of Short Reverberation Time

Reverberation corrupts harmonic structure in voiced speech. We observe that the pitch strength of voiced speech segments is indicative of the degree of reverberation. Consequently, we present an estimation method of reverberation time (T60) based on pitch strength. The pitch strength is measured by deriving the statistics of relative time lags, defined as the distances from the detected pitch p...

Investigating the performance of machine learning-based methods in classroom reverberation time estimation using neural networks (Research Article)

Classrooms, as one of the most important educational environments, play a major role in the learning and academic progress of students. reverberation time, as one of the most important acoustic parameters inside rooms, has a significant effect on sound quality. The inefficiency of classical formulas such as Sabin, caused this article to examine the use of machine learning methods as an alternat...