Why not ? We suspect the answer might be useful for calculating reverberation time in addition to sound intensity field in audio rooms of different geometries.
Ismail, there have been quite a few review papers on this subject. Sabine's equation is still used where the room shape is suitable, the average absorption coefficient is not too high (< ~0.2) and the absorption is evenly distributed but the Eyring equation is used for higher absorption coefficients. Wide, flat spaces with low ceilings tend to be semi-reverberant - the reverberation level is not uniform, hence they do not lend themselves to simple linear models like the Sabine equation. Likewise, tunnels need more advanced reverberation models. This paper might be a useful key to some of the literature on this subject:
https://www.acoustics.asn.au/conference_proceedings/AAS2017/papers/p121.pdf
Hi Ismail,
Sabine's formula is still relevant in room acoustics, and the formulas that came after, such as Eyring's, Kuttruff's or Fitzroy's, are heavily inspired by Sabine's work. Admittedly, it it not perfect and the requirements of diffuse sound field and uniformly distributed absorption make it inaccurate in the majority of rooms.
However, many researchers and acoustic consultants still use it in their work and related software, such as Odeon or Catt-acoustics, usually include the option of calculating reverberation time of a modeled room with Sabine's formula. On top of that, the equation is also used in e.g., sound absorption coefficient estimation. For all of those reasons I personally think that it is still worth it to study Sabine's formula and try to improve its accuracy.
Please see the paper that I and my co-authors published just recently in the Journal of the Acoustical Society of America, Calibrating the Sabine and Eyring formulas : https://doi.org/10.1121/10.0013575 It discusses the applicability of Sabine's and Eyring's formulas and offers a method to improve their accuracy.
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