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IEC 60268-4-ed.6.0
Sound system equipment - Part 4: Microphones
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STANDARD published on 12.9.2018
The information about the standard:
Designation standards: IEC 60268-4-ed.6.0
Publication date standards: 12.9.2018
SKU: NS-897629
The number of pages: 54
Approximate weight : 162 g (0.36 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60268-4-ed.6.0 :
IEC 60268-4:2018 is available as IEC 60268-4:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60268-4:2018 specifies methods of measurement for the electrical impedance, sensitivity, directional response pattern, dynamic range and external influences of sound system microphones, and also details the characteristics to be specified by the manufacturer. It applies to sound system microphones for all applications for speech and music. It does not apply to measurement microphones, but it does apply to each audio channel of microphones having more than one channel, for example for stereo or similar use. It is also applicable to flush-mounted microphones and to the analogue characteristics of microphones with digital audio output. For the purposes of this International Standard, a microphone includes all such devices as transformers, pre-amplifiers, or other elements that form an integral part of the microphone, up to the output terminals specified by the manufacturer. The major characteristics of a microphone are considered in Clauses 6 to 21. Additional characteristics are considered in Annex A and Annex C. IEC 60268-4:2018 cancels and replaces the fifth edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) subclause 19.4 on "pop" measurement replaces Annex C; b) new Annex D for noise measurements in the digital domain. IEC 60268-4:2018 est disponible sous forme de IEC 60268-4:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis ledition precedente. IEC 60268-4:2018 specifie les methodes de mesure portant sur l’impedance electrique, l’efficacite, le diagramme de directivite, la dynamique, et les perturbations exterieures des microphones pour les systemes electroacoustiques, et decrit egalement les caracteristiques a specifier par le fabricant. Elle s’applique aux microphones pour les systemes electroacoustiques appartenant aux applications relatives a la parole et a la musique. Elle ne s’applique pas aux microphones de mesure, mais elle s’applique a chaque voie audio des microphones multivoies, par exemple pour une utilisation stereophonique ou similaire. Elle est egalement applicable aux microphones a montage encastre et aux caracteristiques analogiques des microphones a sortie audio numerique. Pour les besoins de la presente Norme internationale, un microphone comprend tous les dispositifs, tels que les transformateurs, preamplificateurs ou autres elements faisant partie integrante du microphone, jusqu’aux bornes de sortie specifiees par le fabricant. Les principales caracteristiques d’un microphone sont examinees dans les Articles 6 a 21. Des caracteristiques supplementaires sont etudiees dans l’Annexe A et l’Annexe C IEC 60268-4:2018 annule et remplace la cinquieme edition parue en 2014. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) le paragraphe 19.4 relatif a la mesure de l’effet "pop" remplace l’Annexe C; b) nouvelle Annexe D pour les mesures du bruit dans le domaine numerique.
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