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GB/T 9029-2011 English PDF

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US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 9029-2011: Methods of the measurement of speed fluctuations in sound recording and reproducing equipment
Status: Valid

GB/T 9029: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 9029-2011	229	Add to Cart	3 days	Methods of the measurement of speed fluctuations in sound recording and reproducing equipment	Valid
GB/T 9029-1988	279	Add to Cart	3 days	Method of measurement of speed fluctuations in sound recording and reproducing equipment	Obsolete

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Basic data

Standard ID: GB/T 9029-2011 (GB/T9029-2011)
Description (Translated English): Methods of the measurement of speed fluctuations in sound recording and reproducing equipment
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M71
Classification of International Standard: 33.160.30
Word Count Estimation: 10,188
Date of Issue: 2011-12-30
Date of Implementation: 2012-05-01
Older Standard (superseded by this standard): GB/T 9029-1988
Adopted Standard: IEC 60386-1972, MOD
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 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
Summary: This standard specifies the use of technology -weighted peak jitter measurement method. This standard applies to adopt a variety of technology -weighted peak tape recorder and record player jitter measurements.

GB/T 9029-2011: Methods of the measurement of speed fluctuations in sound recording and reproducing equipment

---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.
Methods of the measurement of speed fluctuations in sound recording and reproducing equipment ICS 33.160.30 M71 National Standards of People's Republic of China Replacing GB/T 9029-1988 Sound recording and reproducing apparatus jitter measurement method (IEC 60386. 1972, Methodsofthemeasurementofspeedfluctuationsin soundrecordingandreproducingequipment, MOD) Issued on. 2011-12-30 2012-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This revised standard adopts the International Standard IEC 60386 "sound recording and reproducing apparatus jitter measurement method" (1972 edition, and modify the file). This standard replaces GB 9029-1988 "sound recording and reproducing apparatus jitter measurement method." This standard and GB/T 9029-1988 compared to the main changes are as follows. --- Increasing the foreword; --- By 1988 to modify the file to modify Chapter 4; --- Added Appendix B; --- According to GB 1.1-2000 requirements for text editing. The difference between the original standard and IEC 60386 as follows. --- Deleted from the French text published multilingual versions of international standards; --- Remove the cover of international standards and directory preface; --- The international standards incorporated into the text of the amendment; --- Table 1 and Figure 1 in Chapter 4; --- The number of FIG. 3 to FIG. 2, and placed in 4.1; --- 2 will be renumbered 3 and placed in 4.2.1; --- Increase the introductory phrase in Appendix B, see Chapter 3. The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This standard by the national audio, video and multimedia systems and equipment Standardization Committee (SAC/TC242) centralized. This standard drafting units. China Electronics Technology Group Corporation Institute. The main drafters of this standard. Ruan Weihong, Liu Xiankun. This standard replaces the previous standard release case. GB/T 9029-1988. Sound recording and reproducing apparatus jitter measurement method

1 Scope

This standard specifies the method for measuring jitter of devices using weighted peak of technology. This standard applies to the use of technology-weighted peak jitter measurement of various tape recorder and record player.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Jitter flutter In the recording or playback, the recording carrier modulation frequency caused by irregular movement in 10Hz or more to send a signal Students FM phenomenon. 2.2 Shaking wow In the recording and playback process, the modulation frequency due to the irregular movement of the record carrier arising from the letter of 0.1Hz ~ 10Hz No. parasitic FM phenomenon. 2.3 Drift drift During recording and playback, the record carrier speed of slow changes.

3 jitter measurements

a) jitter measuring sound recording device using the method given peak. b) measuring 3150Hz frequency. c) shall be measured only on the (recording and playback section) a part of the system, can not simultaneously be in two parts. Then the rest of the system Jitter section is negligible. In the measurement results should indicate the measurement conditions, for example, only portions of the recording, playback is only part of or the entire recording systems. d) when c) the conditions are not met, it allows to record a 3150Hz test signal, and then play a few times this recording signal Cassette player recording method of measuring the jitter. Recording each measurement of jitter and the arithmetic average of the measurements. Jitter measurement should not be carried out under conditions of simultaneous recording and playback of. e) In order to obtain stable and reproducible jitter readings recommended 2δ method to eliminate random peaks. Other notes See Appendix f) measurement method B.

4 measuring equipment and measurement methods

Weighted response curve should be in accordance with Table 1 and Figure 1. Note. unweighted response curve (at least in the flat between 0.1Hz ~ 200Hz) should be able to provide useful additional information about the jitter sources. For non-weighted sound Response curve, tolerance and measurement methods are not specified. Additional requirements for measuring equipment given in Appendix A. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 9029-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 9029-2011_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 9029-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 9029-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 9029-2011?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 9029-2011 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.