共找到 720 条与 音响、电声设备 相关的标准,共 48 页
This drawing describes device requirements for MIL-STD-883 compliant, non-JAN class level B microcircuits in accordance with MIL-PRF-38535, appendix A.
MICROCIRCUIT, LINEAR, DUAL, PRECISION OPERATIONAL AMPLIFIER, MONOLITHIC SILICON
This International Standard applies to sound signalling devices with integral enclosures or to sound signalling devices intended to be fitted into or supplied with enclosures according to IEC 60670 intended for household and similar purposes with rated voltages greater than 50 V a.c. or 75 V d.c. and not exceeding 250 V a.c. or 250 V d.c., and with rated power inputs not exceeding 100 VA. These products are designated as "devices" throughout the remainder of the text. This standard applies to fixed, portable and plug-in devices for indoor or outdoor use. In locations where special conditions prevail, special constructions may be required. NOTE 1 This standard or parts of it may be used as a guide for sound signalling devices having a voltage less than 50 V a.c. or 75 V d.c. Additional requirements for sound signalling devices having a voltage less than 50 V a.c. or 75 V d.c. are under consideration. NOTE 2 This standard does not cover the radio transmitting or receiving functions.
Sound signalling devices for household and similar purposes
To be read in conjunction with CENELEC HD 483.1 S2:1989, CENELEC HD 483.2 S2:1993
Sound system equipment. Amplifiers
The document describes a command set which should be used to control DAB receivers. The coding of these commands is also described. This command set is intended to be used on different physical bus systems.
Digital audio broadcasting system - Specification of the DAB command set for receiver (DCSR); German version EN 50320:2000
This standard describes a command set which should be used to control DAB receivers. The coding of these commands is also described. This command set is intended to be used on different physical bus systems. The coding should be mapped transparently on different physical interfaces. Selection conflict management, dynamic bandwidth problems and the device addressing are not within the scope of this document.
Digital audio broadcasting system - Specification of the DAB command set for receivers (DCSR)
Interchangeability Standards New Generation Audio Reproducer Unit (ARU)
Interchangeability Standards New Generation Audio Reproducer Unit (ARU)
Interchangeability Standards - Video Sources
Interchangeability Standards - Video Sources
Interchangeability Standards - Pre-Recorded Announcement and Boarding Music Reproducer (PRAM)
Interchangeability Standards - Pre-Recorded Announcement and Boarding Music Reproducer (PRAM)
This International Standard applies to the MiniDisc (MD). It defines the mechanical and electrical characteristics necessary to ensure the interchangeability of both premastered optical discs and recordable magneto-optical discs of 64 mm diameter for the compressed digital audio recording system.
Audio recording - Minidisc system
Sound system equipment: Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - Part 1: General method for "one package equipment"; German version EN 50332-1:2000
Sound system equipment - Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - Part 1 : general method for "one package equipment".
This part of IEC 60268 applies to analogue amplifiers, and the analogue parts of analogue/digital amplifiers, which form part of a sound system for professional or household applications. It specifies the characteristics which should be included in specifications of amplifiers and the corresponding methods of measurement. NOTE The methods of measurement for digital amplifiers and similar equipment are given in IEC 61606. [6] In general, the specified methods of measurement are those which are seen to be most directly related to the characteristics. This does not exclude the use of other methods which give equivalent results. In general, the methods are based on the simplest measuring equipment which can provide useful results. This does not exclude the use of more complex equipment which can give higher accuracy and/or allow automatic measurement and recording of results. Rated conditions and standard measuring conditions are specified in order to allow measurements to be reliably repeated. note: 1) Numbers in square brackets refer to the bibliography.
Sound system equipment - Part 3: Amplifiers
This part of ISO 389 specifies a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers, in order to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world. It states the information in a form suitable for direct application to the calibration of audiometers, that is, in terms of the response of two different standard models of earphone measured on a coupler complying with IEC 60303 and In terms of other supra-aural earphones of models specified in 4.3 measured on an artificial ear complying with IEC 60318. It is based on an assessment of the information available from the various standardizing laboratories responsible for audiometric standards and from scientific publications. Some notes on the derivation and application of the recommended reference levels are given in annex A.
Acoustics - Reference zero for the calibration of audiometric equipment - Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958
本规范规定了家庭影院用环绕声放大器的要求、试验方法、质量评定程序及标志、包装、运输和贮存。 本规范适用于家庭影院用环绕声放大器,也适用于家庭影院用多通道声频功率放大器。
General specification of surround audio amplifier for home theater
本规范规定了家庭影院用组合扬声器系统定义、技术要求、试验方法、质量评定程序、标志、包装、运输和贮存。 本规范适用于家庭影院用组合扬声器系统。
General specification of compositive loudspeaker system for home theater
This specification covers one type of moving coil, dynamic type earphone designated as H-87B/U. This earphone transforms electrical energy into acoustical energy and may be acquired normally as component parts of a complete headset assembly
EARPHONE H-87B/U
Digital audio interface - Part 4: Professional applications
Digital audio interface - Part 3: Consumer applications
Digital audio interface - Part 1: General
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