Study on blind method of estimating room acoustic characteristics without measuring room acoustics

本文基于调制传递函数的概念，提出了从观察到的混响语音信号中盲目估计房间声学特性的简化和具体方法。仿真结果表明，该方法可以实现对室内声学特性的盲估计。实验结果还表明，即使有人在房间内，该方法也能有效地从各种房间声学的混响语音信号中估计房间声学特性。

This study proposed simplified and specified methods of blindly estimating the room acoustic characteristics from observed reverberant speech signals, based on the concept of the modulation transfer function. Results of simulations revealed that the proposed approach could blindly estimate the room acoustic characteristics. Results of experiments also revealed that the proposed approach could be used to effectively estimate the room acoustic characteristics from reverberant speech signals in various room acoustics even if people were in the room.