EN 61606-4-2006 en Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics Part 4 Personal computer《音频和视听设备 数字音频部件 音频特性的基础测量方法 第4.pdf
《EN 61606-4-2006 en Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics Part 4 Personal computer《音频和视听设备 数字音频部件 音频特性的基础测量方法 第4.pdf》由会员分享,可在线阅读,更多相关《EN 61606-4-2006 en Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics Part 4 Personal computer《音频和视听设备 数字音频部件 音频特性的基础测量方法 第4.pdf(34页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARDBS EN 61606-4:2006Audio and audiovisual equipment Digital audio parts Basic measurement methods of audio characteristics Part 4: Personal computer The European Standard EN 61606-4:2006 has the status of a British StandardICS 35.020; 33.160.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g4
2、3g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61606-4:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 B
3、SI 2007ISBN 978 0 580 50167 8National forewordThis British Standard was published by BSI. It is the UK implementation of EN 61606-4:2006. It is identical with IEC 61606-4:2005.The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio, video and multimedia systems an
4、d equipment.A list of organizations represented on EPL/100 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity
5、from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61606-4 NORME EUROPENNE EUROPISCHE NORM December 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotec
6、hnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61606-4:2006 E ICS 35.020; 33.160.30 English version Audio and audiovisual equipment - Digital audio p
7、arts - Basic measurement methods of audio characteristics Part 4: Personal computer (IEC 61606-4:2005) Equipements audio et audiovisuels - Parties audionumriques - Mthodes fondamentales pour la mesure des caractristiques audio Partie 4: Ordinateur personnel (CEI 61606-4:2005) Audio- und Audiovisuell
8、e Gerte - Digitale Tonteile - Grundlegende Messverfahren der Audio-Eigenschaften Teil 4: Personal-Computer (IEC 61606-4:2005) This European Standard was approved by CENELEC on 2006-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
9、 giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in two officia
10、l versions (English and German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees o
11、f Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61
12、606-4:2006 2 Foreword The text of the International Standard IEC 61606-4:2005, prepared by IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC as EN 61606-4 on 2006-12-01 without any modification. The following dates were fixed:
13、 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-12-01 Annex ZA has been added by CENELEC. _ End
14、orsement notice The text of the International Standard IEC 61606-4:2005 was approved by CENELEC as a European Standard without any modification. _ 3 EN 61606-4:2006 CONTENTS 1 Scope 5 2 Normative references .5 3 Terms, definitions and abbreviated terms 5 3.1 Terms and definitions 5 3.2 Abbreviated t
15、erms .7 3.3 Rated values .7 4 Measuring conditions7 4.1 Environmental conditions.7 4.2 Power supplies 7 4.3 Test signal frequencies8 4.4 Standard setting 9 4.5 Working setting10 4.6 Preconditioning11 5 Measuring instruments11 5.1 Analogue signal generator .11 5.2 Analogue in-band level meter.11 5.3
16、Analogue low-pass filter.11 5.4 Analogue weighting filter11 5.5 Standard medium 11 5.6 Recording medium.12 5.7 Software for digital data evaluation 12 5.8 Short-term distortion meter 13 5.9 Other instruments13 6 Methods of measurement (digital-in/analogue-out) 13 6.1 Input/output characteristics 14
17、6.2 Frequency response 15 6.3 Noise characteristics .16 6.4 Distortion characteristics20 7 Methods of measurement (analogue-in/digital-out) 22 7.1 Input/output characteristics 22 7.2 Frequency response 24 7.3 Noise characteristics .25 7.4 Distortion characteristics28 Annex ZA (normative) Normative r
18、eferences to international publications with their corresponding European publications31 Figure 1 Block diagram for maximum output amplitude measurement14 Figure 2 Block diagram for gain difference between channels measurement15 Figure 3 Block diagram for frequency-response measurement.15 Figure 4 B
19、lock diagram for signal-to-noise ratio measurement 16 Figure 5 Block diagram for dynamic range measurement 17 Figure 6 Block diagram for channel separation measurement19 Figure 7 Block diagram for distortion and noise measurement.20 Figure 8 Block diagram for short-term distortion measurement21 EN 6
20、1606-4:2006 4 Figure 9 Block diagram for maximum allowable input amplitude measurement.22 Figure 10 Block diagram for gain difference between channel and tracking error measurement23 Figure 11 Block diagram for frequency response measurement.24 Figure 12 Block diagram for signal-to-noise ratio measu
21、rement.25 Figure 13 Block diagram for dynamic range measurement 26 Figure 14 Block diagram for channel separation measurement27 Figure 15 Block diagram for distortion and noise measurement .28 Figure 16 Block diagram for short-term distortion measurement 29 Table 1 Frequencies used in the measuremen
22、t.8 5 EN 61606-4:2006 Part 4: Personal computer 1 Scope This part of IEC 61606 specifies the basic measurement methods of a linear PCM signal for an audio part of personal computers (PCs) and applies to both desktop and portable computers. The common measuring conditions and methods are described in
23、 IEC 61606-1. Specific conditions and methods of measurement for PCs are given in this standard. NOTE 1 The methods described are mostly based on sampling frequencies from 8 kHz to 192 kHz and bit length from 8 bit to 24 bit. NOTE 2 This standard describes tests for equipment which has digital input
24、 with analogue output and analogue input with digital output. Digital input data are provided from an internal HDD or other memory media and output digital data are recorded to an internal HDD or main memories. NOTE 3 The methods specified in this standard are not applicable to systems incorporating
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- EN6160642006ENAUDIOANDAUDIOVISUALEQUIPMENTDIGITALAUDIOPARTSBASICMEASUREMENTMETHODSOFAUDIOCHARACTERISTICSPART4PERSONALCOMPUTER

链接地址:http://www.mydoc123.com/p-720343.html