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GY/T 193-2003 (GYT 193-2003)

GY/T 193-2003_English: PDF (GYT193-2003)
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GY/T 193-2003English199 Add to Cart 3 days Synchronization of digital audio system GY/T 193-2003 Valid GY/T 193-2003

Standard ID GY/T 193-2003 (GY/T193-2003)
Description (Translated English) Synchronization of digital audio system
Sector / Industry Radio, Film & TV Industry Standard (Recommended)
Classification of Chinese Standard M70
Classification of International Standard 33.160.30
Word Count Estimation 7,710
Date of Issue 2003-07-11
Date of Implementation 2003-08-01
Adopted Standard AES 11-1997, IDT
Drafting Organization The Central People's Broadcasting Station
Administrative Organization National Radio and Television Standardization Technical Committee
Summary This standard specifies the two sets of parameters. The first group is the digital audio data between the devices on the successful exchange performance requirements, the second group on the digital/analog and analog/digital conversion of the clock recovery performance requirements. This standard applies to the digital studio environment interconnect digital audio equipment, but also for the studio environment with an external device connected to the signal source and the receiver.

GY/T 193-2003
Synchronization of digital audio system
Digital audio system synchronization
(AES11-1997, Synchronization of digital audio equipment
in studio operations, IDT)
2003-07-11 release
2003-08-01 Implementation
Published by the State Administration of Radio, Film and Television
People's Republic of China Radio, Film and Television Industry Standard
With the development of digital technology, the digitalization process of the radio and television industry is gradually accelerating, and analog devices have been replaced by digital devices. along with
The increase of digital equipment will inevitably lead to the synchronization problem of digital audio systems. To this end, the "Digital Audio System Synchronization" standard needs to be developed.
This standard is equivalent to AES11-1997 "Synchronization of Digital Studio Audio Equipment", which specifies the synchronization of digital studio audio equipment
This standard is under the jurisdiction of the National Radio and Television Standardization Technical Committee.
This standard was drafted. Central People's Broadcasting Station.
The main drafters of this standard. Liu Zhaohui and Song Bo.
AES Preface
This document is a revision of AES11-1991. It provides operational standards and guidance for users who need to synchronize digital audio signals.
This provides basic requirements for processing remote program sources in the studio. For system engineering in this area, the development of actual work should follow
Standardization of sampling frequency and international consensus on serial transmission formats in the professional field.
In 1984, the AES Standards Committee Digital Audio Association established a working group to consider policy options for the benefit of the industry.
Performance issues. The approach is to get more than 60 equipment manufacturers to provide their suggestions and opinions. Society of Film and Television Engineers
(SMPTE), the European Broadcasting Union (EBU), and the International Electrotechnical Commission (IEC ) engineers provided their opinions. final conclusion
The AES3 and AES5 standards are recognized, and the principles applicable to synchronous operation are initially proposed, and then the future development of digital audio systems is considered.
With the.1991 revision, more attention was paid to the use of AES3 signals when combining audio with digital video. In.1993, AES was
A proposal was published in the Journal of the Sound Engineering Society (Vol. 41, No. 5). In October.1994, a working group and related SMPTE group convened a proposal.
Joint meeting. Other meetings are held by representatives of SMPTE, IEC and EBU. This revision is the result of this recommendation and subsequent meetings.
Digital audio system synchronization
1 Scope
This standard specifies two sets of parameters. The first group is about performance requirements for the successful exchange of digital audio data between devices; the second group is about
Performance requirements for clock recovery in digital/analog and analog/digital conversion.
This standard applies to the digital interconnection of digital audio equipment in a studio environment. It also applies to external connections to equipment in a studio environment.
Signal source and receiver.
2 Normative references
The clauses in the following documents have become the clauses of this standard after being referenced. For dated references, all subsequent
Neither amendments (excluding errata) or revised versions are applicable to this standard, however, parties who have reached an agreement under this standard are encouraged to study
Is the latest version of these files available? For undated references, the latest version applies to this standard.
GB/T 14919-1994 Technical Specification for Digital Audio Signal Source Coding
GY/T 158-2000 studio digital audio signal interface
3 terms and definitions
The following terms and definitions apply to this standard.
Two digital audio signals should have exactly the same frame frequency (ie. two signals have the same number of
frame). To successfully connect two digital audio devices, it