M72 音响、电声设备 标准查询与下载

DLA MIL-DTL-9415 B-2007 LS-184A/AIC-10型电动式扬声器

This specification covers one type of loudspeaker designated Dynamic Loudspeaker LS-184A/AIC-10. Dynamic Loudspeaker LS-184A/AIC-10 is one item of Intercommunication Set AN/AIC-10A.

DYNAMIC LOUDSPEAKER LS-184A/AIC-10

JEITA CP1301-2006 视听设备的音频信号用测量方法

Methods of Measurement for Audio Signal in Audio Visual Equipment

DIN EN 61937-6:2006 数字音频.采用IEC 60958的非线性脉冲编码调制(PCM)编码音频位流接口.第6部分:依据MPEG-2 AAC和MPEG-4 AAC音频格式的非线性脉冲编码调制(PCM)位流(IEC 61937-6-2006)

This part of IEC 61937 specifies the method for IEC 60958 to convey non-linear PCM bitstreams encoded in accordance with the MPEG 2 AAC (Advanced Audio Coding) and MPEG-4 AAC format.

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 6: Non-linear PCM bitstreams according to the MPEG-2 AAC and MPEG-4 AAC audio formats (IEC 61937-6:2006); German version EN 61937-6:2006

IEC 61937-8:2006 数字音频.应用IEC 60958的非线性PCM编码音频位流接口.第6部分:符合微软媒体音频专用格式的非线性PCM位流

This part of IEC 61937 specifies the method for the digital audio interface specified in IEC 60958 to convey non-linear PCM bitstreams encoded in accordance with the WMA Professional format.

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 8: Non-linear PCM bitstreams according to the windows media audio professional format

JEITA TT4501B-2006 晶体管扩音器声音的到达距离和干电池使用时间的标记方法

Marking method of reaching distance of sound and operating time of dry cells on the transistor megaphone

DIN EN 61966-6:2006 多媒体系统和设备. 色彩测量和管理. 第6部分: 正面投影显示器; （IEC 61966-6: 2005）; 德文版本 EN 61966-6: 2006

Multimedia systems and equipment - Colour measurement and management - Part 6: Front projection displays (IEC 61966-6:2005); German version EN 61966-6:2006

BS DD IEC/TS 61094-7:2006 计量扩音器.实验室标准扩音器的自由场与声压灵敏度水平差值评估

This part of IEC 61094 - gives a polynomial function derived from a least square fit to data from several laboratories, for the differences between free-field and pressure sensitivity levels of laboratory standard microphones as specified in IEC 61094-1, - enables determination of the free-field sensitivity level of a laboratory standard microphone for zero-degrees incidence in air by adding values of these differences to the pressure sensitivity level, - gives tabulated values for the polynomial function for a range of frequency and temperature, - is applicable when a suitable free-field calibration is not available.

Measurement microphones - Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones

ITU-T P.360-2006 电话受话器过强声压防护装置的效率

The use of devices for preventing the occurrence of excessive acoustic pressure by telephone receivers is recommended in ITU-T Rec. K.7.

Efficiency of devices for preventing the occurrence of excessive acoustic pressure by telephone receivers and assessment of daily noise exposure of telephone users Study Group 12

DLA MIL-DTL-83425 A-2006 MX-8376/AR声音保护耳机

This specification covers a sound protective earcup for the HGU-26/P flight helmet. The earcup is designated MX-8376/AR.

EARCUP, SOUND PROTECTIVE MX-8376/AR

DLA SMD-5962-88630 REV E-2006 硅单片仪表扬声器线性微电路

This drawing documents five product assurance classes as defined in paragraph 1.2.3 and MIL-PRF-38534. A choice of case outlines and lead finishes which are available and are reflected in the Part or Identifying Number (PIN). When available, a choice of radiation hardness assurance levels are reflected in the PIN.

MICROCIRCUIT, LINEAR, INSTRUMENTATION AMPLIFIER, MONOLITHIC SILICON

ITU-T G.723.1 SPANISH-2006 传输速率在5.3和6.3 kbit/s的多媒体通信的双速率语音编码器.16号研究组

This Recommendation specifies a coded representation that can be used for compressing the speech or other audio signal component of multimedia servicesat a very low bit rate. In the design of this coder, the principal application considered was very low bit ratevisual telephony as part of the overall H.324 family of standards.

Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s Study Group 16

ITU-T G.723.1 FRENCH-2006 传输速率在5.3和6.3 kbit/s的多媒体通信的双速率语音编码器.16号研究组

This Recommendation specifies a coded representation that can be used for compressing the speech or other audio signal component of multimedia servicesat a very low bit rate. In the design of this coder, the principal application considered was very low bit ratevisual telephony as part of the overall H.324 family of standards.

Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s Study Group 16

IEC 60958-3:2006 数字音频接口.第3部分:消费类用途

This part of IEC 60958 specifies the consumer application of the interface for the interconnection of digital audio equipment defined in IEC 60958-1. NOTE When used in a consumer digital processing environment, the interface is primarily intended to carry stereophonic programmes, with a resolution of up to 20 bits per sample, an extension to 24 bits per sample being possible.

Digital audio interface - Part 3: Consumer applications

DLA MIL-DTL-27467 B NOTICE 1-2006 H-154A/AIC型电子听筒

MIL-DTL-27467B, dated 9 September 2005, is hereby reactivated and may be used for either new or existing design acquisition.

HEADSET, ELECTRICAL H-154A/AIC

DLA MIL-DTL-28875 B-2006 一般规格固态射频与微波扩音器

CONNECTORS, ELECTRICAL MINIATURE, RECTANGULAR TYPE, RACK TO PANEL, ENVIRONMENT RESISTING, 200°C TOTAL CONTINUOUS OPERATING TEMPERATURE, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and

AMPLIFIERS, RADIO-FREQUENCY AND MICROWAVE, SOLID- STATE, GENERAL SPECIFICATION FOR

DIN EN 61937-7:2006 数字音频.使用IEC 60958 的非线性脉冲编码调制(PCM)编码音频位流的接口.第7部分:符合ATRAC 、ATRAC2/3和ATRAC-X格式的非线性脉冲编码调制(PCM)位流 (IEC 61937-7-2004).德文版本 EN 61937-7-2005

This part of IEC 61937 specifies the method for the digital audio interface specified in IEC 60958 to convey non-linear PCM bitstreams encoded in accordance with the ATRAC, ATRAC2/3 and ATRAC-X formats.#,,#

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 7: Non-linear PCM bitstreams according to the ATRAC, ATRAC2/3 and ATRAC-X formats (IEC 61937-7:2004); German version EN 61937-7:2005

BS EN ISO 389-7:2006 声学.校准音响设备标准基准零点.在自由场所和非扩散场所听力条件下听力基准阈值

This part of ISO 389 specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions. a) The sound field in the absence of the listener consists of either a free progressive plane wave (free field) or a diffuse sound field, as specified in ISO 8253-2. In the case of a free field, the source of sound is directly in front of the listener (frontal incidence). b) The sound signals are pure (sinusoidal) tones in the case of free-field conditions and one-third octave bands of (white or pink) noise in the case of diffuse-field conditions. c) The sound pressure level is measured in the absence of the listener at the position where the centre of the listener's head would be. d) Listening is binaural. NOTE 1 Correction values for the thresh'old of hearing under free-field listening conditions and selected angles of sound incidence (45° and 90°) deviating from frontal incidence are given in ISO 8253-2 for information. NOTE 2 Other conditions are given in Bibliographic Reference [1]. The data are given in numerical form for the preferred frequencies in the one-third-octave series from 20 Hz to 16 000 Hz inclusive in accordance with ISO 266 and, in addition, for some intermediate audiometric frequencies up to 18 000 Hz. It should be emphasized that the threshold data differ from the audiometric zero specified in ISO 389-1, ISO 389-2, ISO/TR 389-5 and ISO 389-8, since the latter refer to monaural listening through earphones with sound pressure levels referred to specified couplers and ear simulators. Direct comparison between the data in the parts of ISO 389 mentioned above and in this part of ISO 389 is therefore not appropriate.

Acoustics - Reference zero for the calibration of audiometric equipment - Reference threshold of hearing under free-field and diffuse-field listening conditions

IEC 61937-5:2006 数字音频.用于IEC 60958的非线性脉冲编码调制(PCM)编码音频位流的接口.第5部分:依据DTS(数字剧院系统格式)的非线性脉冲编码调制(PCM)位流

Describes audio bitstreams encoded according to the Digital Theater Systems (DTS) format data-types I, II and III.

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 5: Non-linear PCM bitstreams according to the DTS (Digital Theatre Systems format(s))

IEC 61937-6:2006 数字音频.应用IEC 60958的非线性PCM编码音频位流接口.第6部分:符合MPEG-2 AAC格式和MPEG-4 AAC音频格式的非线性PCM位流

Specifies the method for IEC 60958 to convey non-linear PCM bitstreams encoded in accordance with the MPEG-2 AAC (Advanced Audio Coding) and MPEG-4 AAC formats.

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 6: Non-linear PCM bitstreams according to the MPEG-2 AAC-format and MPEG-4 AAC audio formats

DLA MIL-DTL-5794 C-2006 M-6A/UR型扩音器零件和扩音器,M-51/UR型(消除噪音碳)

This specification covers two types of noise canceling; carbon microphone units designated Microphone Unit M-6A/UR and Carbon Microphone M-51/UR.

MICROPHONE UNIT M-6A/UR AND MICROPHONE, CARBON M-51/UR (CARBON NOISE CANCELLING)