M72 音响、电声设备 标准查询与下载

JIS C 1515:1991 音响校验器

Sound calibrators

HD 483.15 S3-1991 音响系统设备.第15部分:音响系统各部件互联用最优匹配值(IEC 268-15-87+A1-89+A2-90)

Sound system equipment; part 15: preferred matching values for the interconnection of sound system components (IEC 268-15:1987 + A1:1989 + A2:1990)

IEC 60268-17:1990/COR1:1991 声系统设备.第17部分:标准音量指示表

This is Technical Corrigendum 1 to IEC 60268-17-1991 (Sound sustem equipmentPart 17: Standard volume indicators)

Sound system equipment; part 17: standard volume indicators

IEC 60268-15/AMD3:1991 第3次修改

Sound system equipment; part 15: preferred matching values for the interconnection of sound system components; amendment 3

IEC 60268-2:1987/AMD1:1991 声系统设备 第2部分:一般术语解释和计算方法 修改1

Replaces the existing sub-clause 7.3.1 by a new one. In sub-clause 7.2 adds a new item 12, page 21, at the end of the existing item 11.

Sound system equipment; part 2: explanation of general terms and calculation methods; amendment 1

IEC 60268-3/AMD2:1991 音响系统设备.第3部分:放大器.第2次修改

Sound system equipment; part 3: amplifiers; amendment 2

IEC 60268-12:1987/AMD1:1991 声系统设备 第12部分:广播和类似用途连接器的应用 修改1

Replaces the existing Table I by a new Table I.

Sound system equipment; part 12: application of connectors for broadcast and similar use; amendment 1

BS 6840-17:1991 音响系统设备 标准体积指示器特性的规定和测量方法

Defines the characteristics, methods of measurement, scale colours and standard scale markings, and requirements for a built-in or external attenuator for VU indicators (VU-meters) for use in recording studios and broadcast control rooms.

Sound system equipment. Methods for specifying and measuring the characteristics of standard volume indicators

DIN IEC 60574-18:1991 视听、视频和电视设备及系统.第18部分:声像用自动幻灯放映机与内装双向三极管开关的连接器

This standardd deals with safety aspects for the assessment of audiovisuel, video and television equipment and systems. Connectors for automatic slide projectors with built-in triacs for audiovisual application.#,,#

Audiovisual, video and television equipment and systems; connectors for automatic slide projectors with built-in triacs for audiovisual applications; identical with IEC 60574-18:1987; german version HD 369.18 S1:1989

IEC 60268-10:1991 声系统设备 第10部分:峰值节目电平表

Establishes the characteristics to be specified, the relevant methods of measurement and performance requirements for meters: in general, type I, type II, having incremental displays, and having incremental displays, for secondary and household applicati

Sound system equipment; part 10: peak programme level meters

JIS C 5502:1991 话筒

この規格は，主に家庭用及び業務用合響装置に用いるマイクロホンについて規定する。マィクロホンには。マィクロホンの出力端子に至るまでの変成器，増幅器，又はマィクロホンを構成する素子などの装置を含む。

Microphones

EN 60958:1990 数字音响接口(IEC 958-1989)

Digital audio interface (IEC 958:1989)

IEC 60268-17:1990 声系统设备 第17部分:标准音量指示表

Contains the characteristics to be specified, the performance requirements and the relevant methods of measurement for electromechanical indicators.

Sound system equipment; part 17: standard volume indicators

IEC 60268-3/AMD1:1990 音响系统设备.第3部分:放大器.第1次修改

Sound system equipment; part 3: amplifiers; amendment 1 to IEC 60268-3 (1988)

BS 6840 Pt.5:1990 音响系统设备.第5部分:扬声器特性测量和编写详细说明的方法

Sound system equipment. Methods for specifying and measuring the characteristics of loudspeakers

ITU-T J.57-1990 在H1通道中进行演播室质量的数字声音信号的传输

The transmission format is based on the 2-channel digital audio interface described in Recommendation 647,which should be read in conjunctionwith this text.

Transmission of Digital Studio Quality Sound Signals Over H1 Channels Television and Sound Transmission

IEC 60268-15/AMD2:1990 第2次修改

Sound system equipment; part 15: preferred matching values for the interconnection of sound system components; amendment 2 to IEC 268-15:1987

ITU-R BS.708 FRENCH-1990 工作室监控耳机电声特性的测定.10C部分.声音广播信号的音频特征

This Recommendation considering that unified and closely specified reference listening conditions are an essential prerequisite for subjectiveassessment and quality control; that there are great difficulties in harmonizing the acoustical characteristics of existing control rooms and listening rooms; that some aspects of the audio signal are more clearly perceptible by using headphones than by using loudspeakers; that the frequency response of studio monitor headphones should provide the same sound-colour neutrality as required for loudspeaker monitoring in control rooms and high-quality listening rooms.

Determination of the Electro-Acoustical Properties of Studio Monitor Headphones

ITU-R REPORT BS.300-7-1990 调频声音广播的立体声和多维声

A variant of the pilot-tone system has been investigated in the Netherlands using a single-sideband modulation of the sub-carrier, having a vector amplitude twice that of the sidebands generated in the case of normal sub-carrier modulation, making it compatible for stereophonic receivers having a synchronous type of decoder.

Stereophonic or multi-dimensional sound in frequency-modulation sound broadcasting

ITU-R BS.708 SPANISH-1990 工作室监控耳机电声特性的测定.10C部分.声音广播信号的音频特征

This Recommendation considering that unified and closely specified reference listening conditions are an essential prerequisite for subjectiveassessment and quality control; that there are great difficulties in harmonizing the acoustical characteristics of existing control rooms and listening rooms; that some aspects of the audio signal are more clearly perceptible by using headphones than by using loudspeakers; that the frequency response of studio monitor headphones should provide the same sound-colour neutrality as required for loudspeaker monitoring in control rooms and high-quality listening rooms.

Determination of the Electro-Acoustical Properties of Studio Monitor Headphones