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1. 发明授权

US5812674A Method to simulate the acoustical quality of a room and associated audio-digital processor 失效
标题翻译：用于模拟房间和相关音频数字处理器的声学质量的方法
公开(公告)号：US5812674A
公开(公告)日：1998-09-22
申请号：US700073
申请日：1996-08-20
申请人： Jean Marc Jot , Jean-Pascal Jullien , Olivier Warusfel
发明人： Jean Marc Jot , Jean-Pascal Jullien , Olivier Warusfel
IPC分类号： H04R27/00 , H04S3/02 , H04S5/00 , H04S7/00 , H04R5/00
CPC分类号： H04S5/005 , H04S7/305 , H04R27/00 , H04S2400/11 , H04S3/02
摘要： A method for the simulation of the acoustical quality produced by a virtual sound source and for the localizing of this source with respect to one or more listeners, and one or more original sound sources. This method consists in: 1) fixing values of perceptual parameters defining the acoustical quality to be simulated and values of parameters defining the localization of a virtual source, 2) converting these values into a pulse response described by its energy distribution as a function of the time and the frequency, 3) carrying out a context compensation so as to take account of an existing room effect, 4) obtaining an artificial reverberation from elementary signals so as to achieve a virtual acoustic environment in real time and control the localizing of the virtual source. This method can be used to modify sound signals coming from a real source, or to create sound effects on recording media. An acoustic virtual processor which enables implementation of this method comprises a signal processing "room" module that enables the obtaining of an artificial reverberation and a signal processing "pan" module enabling the controlling of the localization and the movement of the sound source and that carries out a format conversion into another reproduction mode. The acoustic virtual processor can be used to fit out all types of entertainment halls or games halls.
摘要翻译：用于模拟由虚拟声源产生的声学质量并且用于相对于一个或多个听众定位该源的方法以及一个或多个原始声源。该方法包括：1）固定定义要仿真的声学质量的感知参数的值和定义虚拟源的定位的参数值，2）将这些值转换成由其能量分布描述的脉冲响应，作为时间和频率，3）进行上下文补偿，以考虑现有的房间效应; 4）从基本信号获得人为混响，实时实现虚拟声学环境，并控制虚拟的本地化资源。该方法可用于修改来自真实来源的声音信号，或者在录制媒体上创建声音效果。能够实现该方法的声学虚拟处理器包括能够获得人造混响的信号处理“房间”模块和能够控制声源的定位和移动的信号处理“平移”模块，将格式转换为另一种再现模式。声学虚拟处理器可用于装备所有类型的娱乐厅或游戏厅。

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