Reverberation time measurement by the product of two room impulse responses |
| |
Authors: | Raffaele Dragonetti |
| |
Institution: | DETEC, University of Naples FEDERICO II, piazzale Tecchio 80, 80125 Naples, Italy |
| |
Abstract: | The decay function for the evaluation of the reverberation time is often obtained by the method of the backward integration of a squared room impulse response as suggested by M.R. Schroeder more than four decades ago. Since then much work has been published about its implementation. However, soon after the initial exploitation of the method, it was realized that the effects of the background noise contaminating the room impulse response required a careful consideration for accomplishing better results.This paper describes an alternative method dealing with the problem of the backward integration of noisy room impulse responses. This method is based on the processing of two impulse responses sequentially recorded for a fixed source and receiver arrangement in a room. Statistical criteria are proposed to identify how the effect of the noise corrupts the level decay curve using a noise-free synthesized room impulse response as well as measurements performed in a real room. |
| |
Keywords: | 43 55 Br 43 55 Mc |
本文献已被 ScienceDirect 等数据库收录! |
|