Reverberation Time Calculator
Calculates Reverberation Time from multiple microphones using time records
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rt_script.m is the main program. It produces a text file and a pdf file to document the reverberation time estimate. Two measurement methods can be used 1) speaker on-speaker off method, and 2) balloon pop method.
A basic procedure for the measurement two methods is given in the Readme file. The speaker on-speaker off method has been found to be far more accurate than the balloon pop method. Teh balloon pop method can often have more than 50% error below 1000 Hz.
reverb_time.m calculates the reverberation times for 1/3 octave band time records. Time records using the random time test signals from makelNHANESNoisesm_ed.m from (Also on Matlab Central File Exchange) are ideal for reverberation time measurements using the speaker on- speaker off method.
With the balloon pop method, the same file can be processed several times to roughtly estimate the reverberation time in each 1/3 octave band.
引用
Edward Zechmann (2026). Reverberation Time Calculator (https://jp.mathworks.com/matlabcentral/fileexchange/17431-reverberation-time-calculator), MATLAB Central File Exchange. に取得済み.
謝辞
ヒントを得たファイル: octave, ci.m, LMS Toolbox, findextrema.m, Estimatenoise
| バージョン | 公開済み | リリース ノート | Action |
|---|---|---|---|
| 1.0.0.0 | Fixed bug in the LMTS regression routines. Improved the balloon pop method. |
