M72 音响、电声设备 标准查询与下载

ITU-T G.725 FRENCH-1993 使用64 kbit/s内的7 kHz音频编解码器的系统方面

This Recommendation should be associated with Recommendation G.722 7 kHz audio coding within 64 kbit/s and Recommendation H.221 Frame structure for a 64 kbit/s channel in audiovisual teleservices.

SYSTEM ASPECTS FOR THE USE OF THE 7 kHz AUDIO CODEC WITHIN 64 kbit/s

JIS S 8605:1993 小型光盘数字音频系统

この規格は，記録済光学反射式ディジタルオーディオディスクシステムに適用する。

Compact disc digital audio system

ITU-T G.230 FRENCH-1993 由调制设备和直通连接滤波器产生的噪声的测量方法

Considering the provisions of Recommendation G.222, § 4 and the assumptions for the calculation of noise of Recommendation G.223, the following methods for measuring the noise produced by modulating equipments are recommended.

MEASURING METHODS FOR NOISE PRODUCED BY MODULATING EQUIPMENT AND THROUGH-CONNECTION FILTERS

ITU-T G.230 SPANISH-1993 由调制设备和直通连接滤波器产生的噪声的测量方法

Considering the provisions of Recommendation G.222, § 4 and the assumptions for the calculation of noise of Recommendation G.223, the following methods for measuring the noise produced by modulating equipments are recommended.

MEASURING METHODS FOR NOISE PRODUCED BY MODULATING EQUIPMENT AND THROUGH-CONNECTION FILTERS

HD 483.15 S4-1992 音响系统设备.第15部分:音响系统元件互连的优选匹配值(IEC 286-15-1987 + A1-1989 + A2-1990 + A3-1991)

Sound system equipment; part 15: preferred matching values for the interconnection of sound system components (IEC 286-15:1987 + A1:1989 + A2:1990 + A3:1991)

Sound system equipment; part 15: preferred matching values for the interconnection of sound system components (IEC 286-15:1987 + A1:1989 + A2:1990 + A3:1991)

NF C97-303:1992 音响系统设备.放大器

Sound system equipment. Amplifiers.

UL 813-1992 商用音频设备

Commercial audio equipment

SJ 20124-1992 碳粒式送话器总规范

General specification for carbon transmitters

prHD 483.11 S3-1992 音响系统设备.第11部分:音响系统部件互连用圆形连接器的应用

Sound system equipment; part 11: application of connectors for the interconnection of sound system components (IEC 268-11:1987 + A1:1989 + A2:1991)

DIN IEC 60268-17:1992 音响系统设备.标准音量指示器

Sound system equipment; standard volume indicators; identical with IEC 60268-17:1990

JIS C 5504:1992 喇叭形扬声器

この規格は，電気通信機器の一般拡声装置に用いる動電形ホーンスピーカ(以下,スビーカという。)について規定する。

Horn type loudspeakers

HD 483.3 S2-1992 音响系统设备.第3部分:放大器

Sound system equipment; part 3: amplifiers (IEC 268-3:1988 + A1:1990 + A2:1991)

SJ/T 10301-1992 扬声器用T型导磁体尺寸系列

本标准规定了直接辐射式电动锥形扬声器磁路系统用T型导磁体的尺寸系列。 本标准适用于直接辐射式电动锥形扬声器外磁路系统用的一体化和组合式导磁体。球顶形扬声器、双磁路扬声器及内磁式扬声器等磁路系统可参照执行。

Dimension series of type magnetic-conductor used in loudspeakers

prHD 483.15 S4-1992 音响系统设备.第15部分:音响系统元件互连的优选匹配值(IEC 268-15-87)

Sound system equipment; part 15: preferred matching values for the interconnection of sound system components (IEC 268-15:1987 + AMD 1:1989 + AMD 2:1990 + AMD 3:1991)

prHD 483.10 S1-1992 音响系统设备.第10部分:节目峰值电平计(IEC 268-10-91)

Sound system equipment; part 10: peak programme level meters (IEC 268-10:1991)

prHD 483.2 S2-1992 音响系统设备.第2部分:一般术语和计算方法的说明(IEC 268-2-87)

Sound system equipment; part 2: explanation of general terms and calculation methods (IEC 268-2:1987 + A1:1991)

prHD 483.12 S2-1992 音响系统设备.第12部分:广播和类似用途连接器的应用(IEC 268-12-87)

Sound system equipment; part 12: application of connectors for broadcast and similar use (IEC 268-12:1987 + A1:1991)

IEC 61094-2:1992 测量传声器 第2部分:用互易对实验室标准传声器进行压力校准的基本方法

Also applicable to other types of condenser microphones having the same mechanical dimensions. The specified method of determining the pressure sensitivity is suitable to establish a reproducible and accurate basis for the measurement of sound pressure.

Measurement microphones; part 2: primary method for pressure calibration of laboratory standard microphones by the reciprocity technique

SJ 20045-1992 气导动圈式和电磁式送话器总规范

General specification for air-conduction dynamic and electro magnetic transmitters

ANSI S4.30-1992 声频工程中的试验方法.扬声器喇叭筒最低共振频率的测量

Determines the frequency of lowest resonance of a loudspeaker cone. Such information is used for engineering design and for quality control. The method has been developed to improve correlation of measurement between cone manufacturers and loudspeaker manufacturers.

Standard test method for audio engineering - Measurement of the lowest resonance frequency of loudspeaker cones