混响曲线的转折与清晰度评价

传统混响时间T60公式是理想化的统计结果。因此在计算、测试与音质的主观质量之间往往存在误差。从厅堂的脉冲响应入手，结合人耳对脉冲密度的感知限值，对前期声场中不满足统计原则的时段按几何声学处理，后期声场中声线达到充分扩散按统计声学处理。从而得到两段式的混响曲线。并以此方法对经典清晰度公式提出改进。使结果与实际声场更为接近。对厅堂音质设计具有一定的指导意义。     

基于仿真脉冲响应的厅堂音质评价

为进行可听化技术及厅堂音质评价研究,对黄埔青少年宫剧院进行了脉冲响应及其声学参数测试,同时应用ODEON软件对该剧院进行声场仿真,并将计算机仿真和实测结果相比较,通过主观听音试验,探讨应用仿真脉冲响应进行厅堂音质评价的可行性,为进一步实现厅堂音质可听化评价奠定基础。     

人民大会堂音质改造三维计算机仿真

本文论述了室内声场三维计算机仿真技术 ,并对有代表性的仿真软件 ODEON的功能、结构和特点做了简单介绍。应用 ODEON为人民大会堂的音质改造工程进行了三维计算机仿真 ,根据仿真结果 ,对其音质改造提出若干建议     

室内早期反射声分布研究

在室内声学中，早期反射对音质有着重要的影响。因此在反射声布满听众席的过程中形成各界面上反射区域是音质设计中控制和利用早期反射声的依据。本文利用虚声源法构造声像空间。对室内声场中早期反射声线的方向，历程，延迟时间和各界面上的反射区域用解析法进行分析，推导出各前次反射面的边界座标和实用的计算表格，使之走向定量化设计。     

多功能厅堂混响时间的建议

在多功能厅堂设计中,选择最佳混响时间是保证厅堂音质优良的重要方面。60年代,我们先后调查和测定了近30座厅堂音质状况与数据,包括厅堂的空满场的混响时间、声场分布、瞬态响应、语言清晰度等。并组织音乐家、乐队指挥、演员,声学工作者及部分观众对各厅的音质进行了主观评价。综合分析了我国多功能厅堂混响时间及其在作报告和音乐、戏曲演     

广州白云国际会议中心世纪大会堂声学设计综述

对广州白云国际会议中心D幢2600座世纪大会堂的建筑声学设计做了相关的综述,着重介绍了大会堂观众厅的形体调整、室内声学设计、建筑机电设备的噪声与振动控制等内容。室内声学设计过程中,利用室内声学计算机模拟分析这一辅助设计工具,对大会堂观众厅的声场特性及其对应各项音质的物理参量进行了模拟分析计算,对声学初步设计所提出的音质设计方案进行了论证,为厅内的室内声学设计提供了优化和调整的依据。文中对完工后的声学测试结果和使用后的主观音质效果也进行了阐述。     

宁波大榭剧院声学应用实践

剧院除了常规、基础使用要求外,声场的要求也十分重要。本文以宁波大榭剧院建设为例,以剧院使用要求为切入点,对剧场在不同部位和场景下的音质、噪声控制的声学应用进行剖析,针对性提出音质、噪声控制的建议。     

浙江蓝天文化影视中心多用途剧场音质设计

音质设计是多用途剧场实现其功能的最重要的设计,它决定着剧场使用时音质效果;而决定剧场音效的因素很多,包括剧场观众厅体形、观众厅音质设计指标确定、观众厅声场计算机模拟准确度、室内设计方案深化程度以及剧场完工后观众厅音质设计指标现场测量结果系统分析等。文章全面细致介绍了浙江蓝天文化影视中心多用途剧场音质设计过程,通过详细的数据计算、分析、模拟等手段细化展现设计思路,体现了音质设计在剧场建筑中的影响及提升作用,为其他的多用途剧场音质设计提供借鉴。     

天津市滨海新区文化中心演艺中心歌舞剧院建筑声学设计

介绍了演艺中心歌舞剧院的声学设计内容,包括建筑体型设计、混响时间设计及木格栅设计等,用计算机音质模拟对设计进行了校正,用竣工检测进行了声学验收,竣工后的剧院设计参数达到规范要求及预期,声场效果良好.     

多功能厅堂的体型与声扩散

声扩散可以使室内的声场均匀分布，消除可能出现的声学缺陷。本文结合实例，从厅堂的侧墙、顶棚及其它不同的角度探讨采用适当扩散处理的方法，论述在多功能厅堂的体型设计中获得良好音质效果的问题。     

Measurements and predictions of room acoustics in atria

This study compares the acoustical measurements and simulation results of five atria with different designs. In each, atrium reverberation times and sound distribution patterns were obtained via measurements. Independently, we modelled these spaces using a room acoustics simulation application. The comparison of measurements and simulation results support the formulation of recommendations toward a more reliable use of modelling tools for proper acoustical design and analysis of atria.     

Prediction of building envelope performance in the design stage: an application for office buildings

Building envelope should provide visual, thermal and acoustical comfort in accordance with the function of the room. The material properties of the translucent-window- and opaque components-wall- of the building envelope and the ratio of these components are effective in the establishment of comfort conditions in an interior. The perfection of the building envelope design is highly related to the consideration of all parameters together for visual, thermal and acoustical comfort.In this article, at first basic design process to predict the building envelope providing visual, thermal and acoustical comfort, namely “optimum building envelope” is explained, then the used methodologies and some of the results of a research project named “Optimum building envelope design in terms of visual, thermal and acoustical comfort in offices” are presented.     

Die Modernisierung der Royal Albert Hall: Modellmessungen und Berechnungen für die akustische und raumklimatische Beratung

Refurbishing of the Royal Albert Hall – Analytical and model test exploration for acoustics and building physics. The auditorium of the Royal Albert Hall is being refurbished and reconstructed since 1998 in order to match the standards of nowadays event locations. The measures of the reconstruction were supervised intensively in acoustics and building physics. The task included e.g. a broad examination within a room acoustical model. Using this model of the auditorium (scale 1:12) analysis were made, which acoustical measures had to be taken to optimize the use of the auditorium as a concert hall and state‐of‐the‐art event‐location. The measures found during the model experiments were proved by calculations in a computer model simulation and by validation measurements on location. The building physical advice included inquiries dealing with the ventilation and climatic comfort and were done by modeling the air streams in a CFD simulation. Hereby statements had to be done concerning appropriate air velocities, air temperatures, CO₂ concentration in the air and their distributions. The boundary conditions needed in the simulation calculations were determined in a separate computer model based upon Finite Element Methods. A validation of the simulation results of the existing hall before renovation was performed by practical measurements on location.     

Die Raumakustik in Atrien

The room acoustics in atria This article describes the room acoustic features of atria. The work was forced by several inquiries of designers and architects concerning simplified methods to design the room acoustic in lobbies and atria in response to advanced acoustical requirements of atrium users. The described results of measurements in several atria proved that in most cases the room acoustical properties were not satisfied. Starting with acoustical features of concert halls, typical room acoustical behaviours of atria as well as limits in the acoustical properties were developed. Up to now the acoustic perception of speaking and music performances is strongly constricted in most atria.     

某声学实验室特殊构造的结构设计简介

某高校声学实验室是测试技术、手段和方法较全面的综合性声学实验室,包括混响测试室、楼板隔声测试室、墙体隔声测试室及消声室。详细介绍测试门类较齐全的综合性声学实验室的特殊构造设计方法,并对实现"壳中壳"实验类建筑的结构设计方法及构造措施进行介绍。可为同类工程设计提供借鉴。     

A GENERALIZED RAY-TRACING ALGORITHM FOR INTEGRATED VISUAL AND AUDITORY RENDERING IN ROOM ACOUSTICS∗

Based on various similarities between the propagation natures of light and sound, a generalized ray-tracing algorithm for integrated visual and auditory rendering is proposed in room acoustics. In this algorithm, both the physical model of sound and the physical model of light are treated. Furthermore, a virtual environmental system using this generalized integrated algorithm is proposed for acoustical design and evaluation of auditoriums. These theories will improve the reliability and feasibility of the initial computer acoustic design of the building. Two examples are considered in order to demonstrate the validity of the generalized ray-tracing algorithm.     

Ecotect软件在音乐厅改造中的模拟声学设计研究

以旧有体育建筑改造成音乐厅为例,本文通过分析原建筑的声学缺陷,初步设定可行的声学改造方向,然后应用Ecotect软件进行计算机辅助设计。通过模型的建立及各种声学环境的模拟之后,对所得数据进行比较分析,最终得到声学效果最为理想的改造方案。本文是一次对建筑设计新技术应用的探索,也为音乐建筑的前期设计提供切实的理论和数据依据。     

浅谈复杂建筑物的测量放线

深圳东部华侨城室内公园活动屋盖工程轨道结构设计较为复杂，曲线布置，各种计算数据繁琐。采用适当的测量方法并借助计算机程序语言，编写计算程序，各种问题迎刃而解。