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Room shape and size estimation using directional impulse response measurements
Date
2002-09-20
Author
Günel Kılıç, Banu
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Impulse response of a room carries abstract information on the size and shape of that room. Acoustics research has focused on obtaining reflectograms from these physical characteristics using acoustical modelling techniques. However, estimation of the physical structure is also possible by analyzing the impulse responses for early reflections, echo amplitudes, arrival times and reverberation time. This paper proposes a new method to estimate the physical structure of a room using the features of directional impulse response (DIR) measurements obtained by applying the MLS-technique with a directional loudspeaker and a soundfield microphone. The results for 4 rooms were also displayed.
URI
https://hdl.handle.net/11511/84449
Conference Name
Forum Acousticum (16 - 20 Eylül 2002)
Collections
Graduate School of Informatics, Conference / Seminar
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Most of the room acoustics evaluation parameters are calculated from the energy decay curve obtained from the room impulse response. Schroeder's backwards integration method is one of the most commonly used methods to obtain room impulse response. Although, the method holds its validity since 1964 and used extensively, obtaining room impulse response with sufficient length to observe total energy decay requires high computational cost especially in highly reverberant rooms. In such cases, present acoustical...
A new method of curve fiting for calculation of reverberation time from impulse responses with insufficient length
Özgenel, Çağlar Fırat; Sorguç, Arzu (2012-12-01)
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B. Günel Kılıç, “Room shape and size estimation using directional impulse response measurements,” presented at the Forum Acousticum (16 - 20 Eylül 2002), Sevilla, İspanya, 2002, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84449.