GB/T 12060.2-2011 English PDFUS$314.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 12060.2-2011: Sound system equipment -- Part 2: Explanation of general terms and calculation methods Status: Valid
Basic dataStandard ID: GB/T 12060.2-2011 (GB/T12060.2-2011)Description (Translated English): Sound system equipment -- Part 2: Explanation of general terms and calculation methods Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: M70 Classification of International Standard: 33.160.01 Word Count Estimation: 16,195 Date of Issue: 2011-10-31 Date of Implementation: 2012-02-01 Older Standard (superseded by this standard): GB/T 12060-1989 Adopted Standard: IEC 60268-2-1987, IDT Regulation (derived from): Announcement of Newly Approved National Standards No. 15 of 2011 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China GB/T 12060.2-2011: Sound system equipment -- Part 2: Explanation of general terms and calculation methods---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Sound system equipment Part 2. Explanation of general terms and calculation methods ICS 33.160.01 M70 National Standards of People's Republic of China Replacing GB/T 12060-1989 Sound system equipment Part 2. General terms interpretation and calculation methods Soundsystemequipment-Part 2. (IEC 60268-2. 1987, Soundsystemequipment-Part 2. Explanationof generaltermsandcalculationmethods, IDT) Issued on. 2011-10-31 2012-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 12060 "Sound system equipment" is divided into the following sections. --- Part 1. General; --- Part 2. General method of calculation and interpretation of the term; --- Part 3. audio amplifier measurement methods; --- Part 4. Methods of measurement microphones; --- Part 5. Methods for measuring performance main speaker; --- Part 6. Auxiliary passive components; --- Part 7. Headphones measurement methods; --- Part 8. AGC device; --- Part 9. Artificial reverberation, time delay and frequency shift measurement means; --- Part 10. Peak program level meters; --- Part 11. Sound system equipment connectors for the interconnection of the application; --- Part 12. Radio and with similar sound system connected applications; --- Part 13. speaker listening tests; --- Part 14. Circular and oval speaker, shape and installation dimensions; --- Part 16. the speech transmission index (STI) objective assessment of the level of speech intelligibility; --- Part 17. Standard volume tables; --- Part 18. Peak program level meters - Digital audio peak level meter. This part of GB/T 12060 Part 2. This section drafted in accordance with GB/T 1.1-2009 given rules. This section identical with IEC 60268-2. 1987 "Sound system equipment - Part 2. General terms interpretation and calculation methods" (in English) And IEC 60268-2. 1987/Amendment1.1991 "Sound system equipment - Part 2. General Explanation of terms and calculation methods." (In English). This part of IEC 60268-2. 1987 made the following editorial changes. --- Remove IEC 60268-2. 1987's "Preface", replaced with a new "Preface." This Part replaces GB/T 12060-1989 "interpretation of general terms and calculation methods sound system equipment." This section compared with the GB/T 12060-1989 main changes are as follows. a) in accordance with GB/T 20000.2-2001 "Standardization Guide Part 2. Adoption of International Standards Rules" requirement, the GB/T 12060-1989 of Chapters 1 and 2 to delete, identical with IEC 60268-2. 1987 and IEC 60268-2. 1987/Amendment1.1991 Content; b) In GB/T 9.2 is added at the end 12060-1989 IEC 60268-2. 1987/Amendment1. Content 1991, the new Add content to 7.2.12, the margin in the text are identified by a vertical wire (‖); c) according to IEC 60268-2. 1987/Amendment1. the contents of the original 1991 9.3.1 was amended to modify the content in the body The margin is identified by a vertical wire (‖); d) For some entries made editorial changes. This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part of the National Audio, video and multimedia systems and equipment Standardization Technical Committee (SAC/TC242) centralized. This section is drafted. Nanjing University Institute of Acoustics, Goertek Co., Ltd., Shenzhen City Connaught Electronics Limited. The main drafters of this section. Shen Yong, Zhang Qian Jiang Chao. This part of the standard replaces the previous editions are. --- GB/T 12060-1989. Sound system equipment Part 2. General terms interpretation and calculation methods GB/T 12060 in this section contains the interpretation and calculation of the following general terms. General terms 1 1.1 Sound system soundsystem Some combination of devices. The device can handle, or the audio signal transmission acoustic signal. Such as transducers, amplifiers, tape recorders and the like. 1.2 Compatibility compatibility If a portion of another part of the system interconnected together, be able to work properly, it is that the two are compatible. 1.3 Variable power devices variableconsumptionapparatus During work on the equipment power drawn from the supply will change significantly, it may be a signal variation, or load impedance control device (not A power switch) function. NOTE. For some applications, less than 15% of the variation can be considered insignificant. 1.4 Noise signal noisesignal Stationary random signal signal instantaneous value of the normal probability distribution. Unless otherwise noted, the average value is zero. Note. This interpretation applies to measurement of the noise signal. For unwanted noise signal will be considered in Chapter 6. 1.4.1 White noise signal whitenoisesignal Energy per unit bandwidth ΔW Frequency independent noise signal. 1.4.2 Pink noise signal pinknoisesignal Energy per unit bandwidth ΔW Inversely proportional to frequency noise signal. 1.4.3 Broadband noise signal broadbandnoisesignal By having a predetermined frequency response of the filter is done to limit the noise bandwidth of the signal, its bandwidth greater than the bandwidth of the device under test. NOTE. broadband noise signal can limit the bandwidth white noise or pink noise signal, power or have other provisions of the spectrum. 1.4.4 Narrowband noise signal narrowbandnoisesignal By having a predetermined frequency response of the filter is done to limit the noise bandwidth of the signal, its bandwidth is smaller than the bandwidth of the device under test. 1.5 Rating ratedvalues GB/T 12060 in this section, the term "rating" has a specific meaning. Regardless of where the word is used in its meaning have expressed "by the ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 12060.2-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 12060.2-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 12060.2-2011_English with my colleagues?Answer: Yes. 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