“声响亚洲”录音作品评选初评内容增加电影、电视剧等录音作品

“声响亚洲”(广州)文化节录音作品评选已经结束了海选,进入初评阶段。初评阶段包含三方面内容:一是从中国版本图书馆提供的7万余件录音作品中选入595件作品进行初评;二是正式出版的电影、电视剧录音作品,还有所有在北京现场录制的演唱会、演奏会等现场录音作品一并纳入初评范围;三是由录音师本人自己选送作品参加中国十大录音师评选。据悉,《天下无贼》、《2046》、《和你在一起》等电影录音作品已进入初评,初评工作将于6月中旬进行。本届录音作品评选的技术标准参照国际公认的主观音质评价标准。现在文化节组委会正在落实初评评委,名单将…     

参评录音作品百花绽放

正在北京举行的录音作品评选刚刚结束了海选,又进入了第二个阶段——初评阶段。在进入初评的595件录音作品名单中,让人惊喜的是作品入选形式百花绽放。另一突出特点是顶级的录音技术不单是运用在通俗流行音乐上,也广泛运用到许多非流行音乐作品中。在本届录音作品的评选过程中,国家新闻出版总署信息中心(中国版本图书馆)作为协办单位之一,提供了包括中国、新加坡、日本、韩国、印尼、印度、马来西亚及台湾、香港、澳门等在内的国家、地区的录音师录制的在中国正式出版的音乐作品7万多件,供初选使用。对此,评委会的专家们纷纷表示本届录音作…     

录音作品音质主观评价之我见

音质评价包括客观评价(测量)和主观评价(听音)两个方面。一般讲,音质客观评价多是物理意义和建筑意义上的。物理意义上的通常是指电声产品的客观技术指标;建筑意义上的通常是指评价用房的客观声学特性。音质主观评价涉及面较广,既有音质客观评价的要素,又有人的生理心理、素质素养、习惯爱好等因素。笔者就如何看待和进行录音作品音质主观评价谈些见解。录音作品音质主观评价的现实性一件录音作品,从创作、编辑、导演、演播到录音、制作,再到播放,目的是给人以美的享受和心灵的启迪。作品美不美或说欣赏价值如何,除了内容选择得当与否外,音…     

广播录音与实况录音比较

广播录音和实况录音有着各自不同的录音环境、拾音条件、听音环境等,因此,在录音时必须分别采取不同的技术处理以及艺术再创作。拾音环境声学特性的比较广播文艺节目录音有固定的录音播音室,广播录音播音室设计规范和技术用房的要求,广电总局早已有部颁标准(GYJ26—86),其中对于建筑容积(长宽高)、隔声控噪、混响时间、频响曲线等均有具体表述。这就意味着,录音师静场录音的拾音环境也是比较固定的,对其声学特性也是相对较好的。所以录音师了解自己工作的声学环境,工作起来可以说是“轻车熟路”。实况演出的地点多种多样,从小型厅堂到大、…     

影响拾音效果的几个因素

随着欣赏水平的日益提高,人们对广播电视节目的声音也提出了新的更高要求。为了能更好地满足这种需求,从事广播电视录音制作的技术人员就必须不断提高录音制作水平,以满足这种需求。录音作品的优劣受拾音的音源、环境、话筒、拾音制式等多种因素的影响。     

粤剧的录音与后期制作(上)

在了解了粤剧的艺术特点的基础上,再根据作品的风格、演员情况、声学环境,选择录音方式,详细介绍了在采用分期分轨的录音方式下,根据各种乐器的发声特性,选择话筒类型、拾音距离、高度及角度,以及增益、输入电平等相关参数的控制。     

新碟荟萃

《非同凡响》柏菲音乐录音:中国录音师《非同凡响》由中国五大录音师陆晓幸、张小安、陈珞、邵军、万小元联手诠释,以超凡的录音技术展现丰富的音乐空间,是不可多得的录音艺术典藏精品。专辑中的10首作品适合不同方面的试音。     

碟窗

2.片名:海菲茨小提琴精选 片号:RCA 09026—62645—2 海菲茨演绎经典小提琴作品 方式:ADD RCA经过多年的整理,收集了海菲茨几乎全部的录音作品,共出版了46张CD唱片,这个系列称为《THE HEIFEIZ COLLECTION》,而这张唱片又是这个系列的精华,共选择了18个片段,将这位被誉为“二十世纪帕格尼尼”的传奇大师精彩录音资料和而为一。听来确实感到卓而不凡,早期的单声道作品有些噪音,但这并不妨碍我们对作品的理解。这张唱片制作由RCA著名录音导演约翰·普菲佛担当,经过整理的CD录音音色饱满通透,声象准确。值得爱乐者珍藏。     

工欲善其事 必先利其器—女声独唱《九百六十万平方公里》录制体会

录音工程是技术与艺术相结合的综合性学科,主要涉及到五个方面:(1)录音声源;(2)录音场所;(3)录音器材;(4)录音技术;(5)录音师的音响审美观。一部好的录音作品,应能将作者的创作意念真实地表现出来,并给人们在听觉上带来美的享受。借助人们听觉思维的无界性、幻想性,体现出其他艺术元素     

录音中的三点感受

一个好的录音作品,首先取决于原作品,然后是录音师加主持人;三者是相辅相成的关系,缺一不可。或许有人认为作品的好坏取决于录音师,然而笔者以为再高明的录音师没有好的作品,也是巧妇难为无米之炊,当然有了好的作品只是一个基石,要靠录音师来细细的雕凿,靠主持人去细细地品味。好的作品要靠录音师和主持人在深刻领悟作品的前提下,采用录音技巧,表达出作品的内涵。     

Estimation of Parameters of Universal Distribution of Moments of Failure of Products

A method is proposed for estimating the parameters of a mixture of exponential and Weibull distributions for which the accuracy of preliminary estimates obtained by graphical analysis is refined in accordance with the criterion of maximum likelihood. The efficiency of the proposed method is supported by the results of statistical modeling.     

Assessment of intakes of mixtures of radionuclides

Australia has several uranium mines and a large number of mineral sand mines, with associated processing facilities. Exposures resulting from these mining and processing operations usually involve intakes of mixtures of radionuclides. This work describes the development of a suite of first order, linear compartment models, based on the ICRP Publication 66 respiratory tract model, and an analytical solution to the decay equations, for assessing the consequences of such intakes. The computer programs based on these models directly compute excretion, organ retention and organ and whole-body doses for intakes of either single radionuclides or any mixture of radionuclides belonging to the same radioactive decay chain. The intake can be via inhalation, ingestion or injection, and can be acute, chronic or of limited duration. The starting concentration and degree of secular (dis)equilibrium can be specified for each radionuclide. No assumptions need to be made about the relative magnitudes of the radioactive half-lives of the different nuclides.     

Analysis of the rate of propagation of the wave of change of boiling modes

An approximate analytical expression is derived for the velocity of the front of the wave of change of boiling modes on a rod and on a plate. The impact of the Thomson effect and of the heater orientation in the gravity field is included. Adequate agreement is demonstrated between the derived relations and experimental data.     

Evaluation of optical properties of highly scattering media by moments of distributions of times of flight of photons

A novel method for the determination of the optical properties of tissue from time-domain measurements is presented. The data analysis is based on the evaluation of the first moment and the second centralized moment, i.e., the mean time of flight and the variance of the measured distribution of times of flight (DTOF) of photons injected by short (picosecond) laser pulses. Analytical expressions are derived for calculation of absorption and of reduced scattering coefficients from these moments by application of diffusion theory for infinite and semi-infinite homogeneous media. The proposed method was tested on experimental data obtained with phantoms, and results for absorption and reduced scattering coefficients obtained by the proposed method are compared with those obtained by fitting of the same data with analytical solutions of the diffusion equation. Furthermore, the accuracy of the moment analysis was investigated for a range of integration limits of the DTOF. The moment analysis may serve as a comparatively fast method for evaluating optical properties with sufficient accuracy and can be used, e.g., for on-line monitoring of optical properties of biological tissue.     

Analysis of anisotropy of properties on the basis of studies of texture of coarse-grained ingots of thermoelectric materials

An analysis of anisotropy of the properties of a Bi₂Se_0.3Te_2.7 solid solution was carried out using construction of demonstrative surfaces for thermoelectric effectiveness and thermal expansion coefficients. It is shown that the texture is an important factor forming anisotropy of properties and technological fitness of ingots for manufacturing modules. Anisotropy of properties based on the studies of the ingot textures obtained using the float-zone method and Bridgman method (growing thermoelectric plates in a flat cavity) was studied.     

Numerical study of methods of linearization of the output characteristics of radio-frequency sensors of the level of dielectric media

Different constructions of the sensing elements of radio-frequency level sensors based on sections of long lines are numerically investigated by means of the Matlab program for the purpose of minimizing the measurement error caused by the nonlinearity of the output characteristic. It is shown that the nonlinearity is lowest for U-shaped designs. The nonlinearity factor KN may be regulated by varying the capacitance of a correcting capacitor connected to the input of the sensing element and (or) the length of one of the sections of the long line. In selecting an optimal capacitance of the correcting capacitor KN ≤ 0.15% for control media with dielectric permittivity in the range 2.2–30.     

Possibilities of Decreasing the Errors of Determination of the Height of the Pole of a Sessile Drop of Melt

We analyze the possibilities of decreasing the errors of measuring the height of the pole of a sessile drop of melt above its equator by determining the position of the equator according to the midpoints of vertical chords of the image of the drop. The optimal distance between these chords and the edge of the image of the drop is chosen within 10–20% of the radius of the equator. The proposed method guarantees the same level of errors of evaluation of the height of the pole and the radius of the equator, which enables one to substantially increase the accuracy of evaluation of the capillary constant and the surface energy of the melt according to the geometric parameters of the sessile drop.     

Estimation of potentialities of methods of summation of direct measurement errors

Conventional methods for summation of direct measurement errors are considered. Conditions under which these methods provide consistent results are stated. It is proposed to utilize for characteristic of the total error, its interval estimator or the half-sum of the value obtained by adding up its arithmetic and geometric random errors.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 10–12, April, 1995.