全国声学标准化技术委员会五届四次会议在杭州举行

全国声学标准化技术委员会五届次会议于2005午12月15日-10日在杭州市召开,有46名委员和代表参加了本次会议。会议由主任委员马大猷院士主持,并对声标委多年的工作进行了总结。声标委成立以来共制定国家标准131项次,制定的国家标准不但数量多,而且质量高,为国家声学标准的发展做出了贡献。中科院声学所田静所长对全体委员的无私奉献表示感谢,并充分肯定了声标委成立25年来所取得的成绩,无论在国家标准委,还是在中科院,声标委都表现得非常突出,希望将声学标准工作越做越好,为国家基础标准的制定做出更大贡献。吕亚东秘书长汇报了声标委2005年度工作情况。     

声学消息

全国声标委第一批通过“国家标准和计划项目”清理整顿工作为提高国家标准的统一协调性、科学合理性、先进适用性,从根本上提高国家标准的时效性,国家标准委于2004年至2005年6月对现行国家标准和计划项目进行了全面的清理整顿。根据国家标准委“清理整顿指示精神”,在主任委员马大猷院士、副主任委员田静研究员的领导下,专门组织会议讨论、安排了工作重点。全国声标委秘书处积极开展工作,以函审和多次会审相结合的方式,充分利用声标委五届三次会议、全国环境声学     

2014年度全国声学标准化技术委员会工作概况

自1980年马大猷院士倡导创立全国声学标准化技术委员会以来,在国家标准委和中国科学院、中国科学院声学研究所的支持与关怀下,经过30多年历届委员和代表的共同努力,已建立了较为完善的声学基础、噪声、建声和超声、水声四大标准体系。在此基础上,2014年度全国声学标准化技术委员会又完成了如下工作:     

几个声学国家标准(草案)的简介(Ⅰ)

1981年全国声学标准化技术委员会第二次会议通过了“声学的量与单位”、“声学量的级及其基准值”、“声学测量中的常用频率”、“空气中声和噪声强弱的客观和主观表示法”、“声和振动分析用1/1和1/3倍频程滤波器”、“城市区域环境噪声标准”、“城市环境噪声测量方法”、“混响室法吸声系数测量规范”及“水声换能器自由场校准方法”等九个国家标准(草案)将上报国家标准总局审批颁布.现将这几个标准的主要内容和有关标准编制情况介绍如下:     

全国声学标准化技术委员会2012年会在南宁举行

全国声学标准化技术委员会六届六次会议于2013年1月26—27日在广西南宁召开,出席会议的委员及代表共计51人。主任委员田静主持会议,对挂靠单位中国科学院声学研究所给与的支持和参会代表对声学标准化工作的无私奉献表示感谢。声学所李风华副所长致辞,首先转达王小民所长对委员的问候,对声标委所制定的170余项现行标准,为建立和完善我国声学标准体系所做贡献予以肯定,今后会继续在人财物力等方面继续支持委员会工作。     

声学消息

国家标准局最近正式下文批准发布了《声学的量和单位》等五个国家标准.其编号和名称如下:GB3102.7-82 声学的量和单位GB3238-82 声学量的级及其基准值GB3239-82 空气中声和噪声强弱的主观和客观表示法GB3240-82 声学测量中的常用频率GB3241-82 声和振动分析用的1/1和1/3倍频程滤波器上述五个国家标准自一九八三年七月一日起实施.这些标准即将由技术标准出版社印刷出版,其主要内容请参阅“声学学报”第7卷第3期(1982年5月)第204—208页“几个声学国家标准(草案)的简介(1)”.     

全国声学标准化技术委员会及其工作简介

全国声学标准化技术委员会是国家标准总局领导下的一个专业性标准化组织,它的主要任务是:负责和组织有关声学专业的国家标准和专业标准的制订、修订及技术审查;组织本专业标准化工作的技术推广、经验交流以及学术活动;接受国家标准化主管部门的委托,对本专业范围内引进的技术和设备,以及新产品的标     

声学国家标准介绍(Ⅰ)

国家标准局、国务院环境保护领导小组及国家计划委员会基本建设标准定额局等国家标准化主管部门,自1982年至今的几年中,已批准发布了由全国声学标准化技术委员会归口和审查通过的21个声学方面的国家标准,这些标准分别于1983年至1984年内开始实施.于1983年实施的12个国家标准已由中国标准出版社出版,各地新华书店技术标准门市部经售,其余的标准将于今年内陆续出版发行。为了使大家能及时了解这些标准的内容,本刊将自本期起,除了已作     

声学标准

国家标准局最近批准发布了6项声学国家标准.这些标准由全国声学标准化技术委员会归口及审查通过.标准的编号、名称和发布、实施日期如下. GB 4963-85 自由场纯音标准等响线 1985-02-28发布,1985-10-01实施; GB 4964-85 内河航道及港口内船舶辐射噪声的测量 1985-02-28发布,1985-10-01实施; GB 5111-85 铁路机车车辆辐射噪声测量1985-04-20发布,1985-12-01实施;     

国家标准化主管部门批准发布8项声学国家标准

国家计划委员会和国家标准局批准发布了7项新的和1项修订的声学国家标准.这些标准的编号、名称和发布实施日期如下:     

Overview of a university course on acoustics and noise

The Bachelor of Mechanical Engineering at the University of New South Wales in Sydney, Australia is a four year degree program. In their fourth and final year, students can choose from a range of technical elective courses, one of those being in acoustics. The acoustics course entitled "Fundamentals of Noise" can also be taken as a postgraduate coursework subject as part of a Masters by Coursework degree. The course covers fundamental topics in acoustics, noise, noise measurement, and noise control. This paper outlines the topics covered in the course, the range of assessment activities conducted by the students, and the use of invited industry guest speakers, all of which aim to maximize student knowledge, interest, and performance in the course.     

环境噪声学进展

本文简要地回顾了30年来中国环境噪声学的发展，并从飞机噪声、地面运输噪声、环境噪声影响与评价以及工业噪声控制四个方面介绍了近年来环境噪声学的进展。     

从建筑声学到环境声学

本文简述环境声学的发展过程以及在厅堂音质、环境噪声和噪声控制方面的新世纪展望。     

Mathematics summer schools for acoustics research training

Mathematical methods are important for research in many aspects of acoustics. Most researchers in acoustics in the United Kingdom do not have access to master level courses to broaden their postgraduate study, so they advance their fundamental mathematical methodologies taught at undergraduate level through independent learning. They develop their mathematical skills as appropriate rather than being made aware of the potential of advanced mathematical tools at the onset of their research career. Attempts to improve this situation were made through summer schools held in 2003 and 2005 at Southampton University and in 2007 at Salford University. The background to these Summer Schools, their content and structure, recruitment figures and student feedback are reported together with conclusions about their performance and role particularly in respect of PhD completion.     

Progresses and advances in Arctic underwater acoustics study

As a part of underwater acoustics, the study and development of Arctic Acoustics is later than underwater acoustics about several hundred years. After World War II, the study of Arctic Acoustics attracts many interests by some developed countries, especially U.S. and pre-Soviet Union. The research works obviously have some kinds of cold war brand. After the Cold War, with the gradual warming trend of Arctic area, the ocean acoustic environment in Arctic and its adjacent area have been considerably concerned. The 8 countries of Arctic rim organized exclusive "Arctic Council" in 1996. The white paper of "China Arctic Policy"was published in January 26, 2018, the Chinese government declared that China is a close Arctic country, and is the responsible stakeholder of Arctic interests. The new advances in Arctic research works axe introduced in this paper, including the results of scientific survey and studies about Arctic underwater acoustics of Chinese researchers. It is showed that the Arctic underwater acoustical research area is not only parallely copy the topics what traditional underwater acoustics covered, e.g. environment noise,reverberation,and propagation, but also the topics which is specifically based on the Arctic environment. Some of these research fields cannot be included in the traditional shallow water, deep water acoustics, e.g. the ice-water interface feature, ice covered semi-acoustic channel effect, the communication and navigation of UUV in the condition of under ice, and the adaptation of sonar technique, equipment in the ice-covered environment, etc.     

Features of underwater acoustics from Aristotle to our time

Underwater acoustics has been one of the fastest growing fields of research in acoustics. In particular, the 20th Century has taken our understanding of underwater acoustics phenomena a great step forward. The two World Wars contributed to the recognition of the importance of research in underwater acoustics, and the momentum in research and development gained during World War II did not reduce in the years after the war. The so-called cold war and the development in computer technology both contributed substantially to the development in underwater acoustics over the second half of the 20th Century. However, the very widespread field of underwater acoustic activities started nearly 2300 years ago with human curiosity about the fundamental nature of sound in the sea. From primitive philosophical and experimental studies of the velocity of sound in the sea and through centuries of successes and failures, the knowledge about underwater acoustics has developed into its high-technological status of today. In particular the development through the period from Aristotle (384–322 BC) to 1960 formed the basis for the tremendous research and development efforts we have witnessed in our time. In this paper most emphasis will be put on the development in underwater acoustics through this period of nearly 2300 years duration, and only the main trends in later research will be mentioned.     

Assessing auditory distance perception using virtual acoustics

In most naturally occurring situations, multiple acoustic properties of the sound reaching a listener's ears change as sound source distance changes. Because many of these acoustic properties, or cues, can be confounded with variation in the acoustic properties of the source and the environment, the perceptual processes subserving distance localization likely combine and weight multiple cues in order to produce stable estimates of sound source distance. Here, this cue-weighting process is examined psychophysically, using a method of virtual acoustics that allows precise measurement and control of the acoustic cues thought to be salient for distance perception in a representative large-room environment. Though listeners' judgments of sound source distance are found to consistently and exponentially underestimate true distance, the perceptual weight assigned to two primary distance cues (intensity and direct-to-reverberant energy ratio) varies substantially as a function of both sound source type (noise and speech) and angular position (0 degrees and 90 degrees relative to the median plane). These results suggest that the cue-weighting process is flexible, and able to adapt to individual distance cues that vary as a result of source properties and environmental conditions.     

厅堂声学一百周年(1895—1994)

本文介绍自Ｗ．Ｃ．Ｓａｂｉｎｅ以来１００年厅堂声学的发展简史，包括室内声学理论，音指标与评价，声学测试方法，缩尺模型技术，计算机仿真技术及厅堂设计的发展，现状及关于今后研究方向的前瞻。     

Loudness criteria in auditorium acoustics

I.IntroductionLoudnessisoneofthedistinguishingcharactcristicsamonga1lacousticcriteriainauditori-umdesign.Insufficientorsevcrcunevendistributionofloudncsscausesseriousdeficiencytoauditoriumacoustics.Duetothelackofappropriateparamcter,thereisnowayeithertopre-dictloudnessinanauditoriumduringthedcsignstagc,ortochccktheactua1effectafterthecomp1etionoftheconstruction.Wca1lmighthavethcexpcricnccasanaudiencethatthestagcattractedmoreofourcon-ccntrationduringthesoftpassagcofthcpcrformance,whercaswewcre…