It does not attempt to advise on the relative merits of loudspeaker monitoring and headphone monitoring, nor on the many other aspects of importance in headphone selection such as cost, comfort, durability, repairability, feedback susceptibility, electrical impedance, electro‑acoustical efficiency, consistency between units, non-linear distortion and maximum sound level.
Recommendation ITU-R BS.775 – Multichannel stereophonic sound system with and without accompanying picture, contains the following information:
– standard geometry for loudspeakers and listening position;
– specification for 5/2/5 channel encoding/transmission/decoding system which maximizes compatibility with 2-channel and single-channel systems;
– an optional listening arrangement with enhanced surround sound field coverage using three front loudspeakers and four surround loudspeakers.
(...) Recommendation ITU-R BS.646 – Source encoding for digital sound signals in broadcasting studios, contains operating parameters and performance guidelines for analogue to digital conversion in sound equipment. (...) This Recommendation is intended as a guide to selection and assessment of performance of digital sound production equipment and digital sound production systems for broadcasting.
Language:English
Score: 1663369
-
https://www.itu.int/dms_pub/it.../0A/07/R0A070000040001MSWE.doc
Data Source: un
- 2 - 6/11-E
Guide to itu-r recommendations on Programme sound recording
(under the responsibility of Working Party 6R)
Source: Document 6/11
Background
This Guide lists and details those Recommendations in the BR series that cover the area of programme sound recording.
(...) NOTE – ITU-R Recommendations can be found at the following address: http://www.itu.int/ITU-R/publications/rec/index.asp
Guide to ITU-R Recommendations on programme sound recording
Analogue programme sound recordings
• Recommendation BR.408 “International exchange of sound programmes recorded in analogue form” specifies the audio tape width, the recording speed and the recording characteristics for the international exchange of analogue sound programmes. (...) This Recommendation analyses three cases, namely:
– when it is desired to derive a monophonic sound signal for conventional monophonic television emission;
– when it is desired to derive a stereophonic sound signal for stereophonic television emission;
– when it is desired to carry the original stereophonic film sound with matrix encoding of surround sound through the television emission chain.
• Recommendation BR.1422 “Operational practices for television use of film soundtracks encoded with noise reduction and matrix surround” provides specifications similar to those in Recommendation ITU‑R BR.1287, but it focuses them on the exploitation of the various versions of Dolby companding and matrix encoding that can be found on analogue soundtracks of current feature films.
_______________
C:\DOCUME~1\laurent\LOCALS~1\Temp\FrontPageTempDir\progr-sound-rec.doc (168367) 14.10.03 08.06.04
C:\DOCUME~1\laurent\LOCALS~1\Temp\FrontPageTempDir\progr-sound-rec.doc (163367) 14.10.03 08.06.04
Language:English
Score: 1623104.5
-
https://www.itu.int/dms_pub/it.../0A/07/R0A070000040004MSWE.doc
Data Source: un
© 2015 Fraunhofer IIS
MPEG-H Audio System for Broadcasting
ITU-R Workshop “Topics on the Future of Audio in Broadcasting”
Jan Plogsties
© 2015 Fraunhofer IIS
Challenges of a Changing Landscape
Immersion Compelling sound experience through sound that comes from all directions produced in different formats
Personalization and interactivity Adaptation to the user’s liking and listening situation
Everywhere Play on any device with delivering best possible sound experience in terms of spatial impression and dynamic range
© 2015 Fraunhofer IIS
What is MPEG?
(...) Rendering
TV E.g. 7.1+4
Speakers
IP
Transport
Stream
2.0,
5.1, 7.1+4
Loud-
speakers,
Head-
phones
Emission Encoding Consumer
Live Production
Audio from
Live Console
No Control Data for
Objects and
Loudness
Production
User
control
Advanced
sound file
format
Tablet
MPEG-H Audio in the broadcasting chain
© 2015 Fraunhofer IIS
Audio Content Types
Channel-based
Mixes produced for a defined target loudspeaker locations
Object-based
Sound of a single element and related metadata
Positional object - Target locations or arbitrary movements specified by metadata
Interactive object – Object that can be controlled by the listener
Higher Order Ambisonics (HOA)
Corresponds to a spherical expansion of the sound field in a point
Speaker layout agnostic; Rendering to target loudspeaker setup
© 2015 Fraunhofer IIS
MPEG-H Audio - Basic Decoder Architecture
to HP
Audio bit-
stream
© 2015 Fraunhofer IIS
MPEG-H Audio Core Codec
Based on MPEG Unified Speech and Audio Coding (USAC)
Extensions for use in the context of 3D audio
Improved coding efficiency by parametric tools
Improved stereo and multichannel imaging
Instantaneous bit rate and stream switching
Signaling for 3D content/loudspeaker layouts
Bed Objects Total # of chan. +
obj. (...) Rendering
TV E.g. 7.1+4
Speakers
IP
Transport
Stream
2.0,
5.1,or
7.1+4
Speakers
Encoding Consumer
Live Production
Audio from
Live Console
No Control Data for
Objects and
Loudness
Production
User
control
ITU-R
BS.2051-0
Advanced
sound
system for
programme
production
Advanced
sound file
format
ITU-R
BS.2076
Audio Def.
Language:English
Score: 1596338.2
-
https://www.itu.int/en/ITU-R/s...default/Presentation%202-1.pdf
Data Source: un
The centre part of 13 segments could be received by terrestrial sound broadcasting receiver
! This segment usually uses QPSK or 16 QAM with high forward error correction capability for mobile reception
7
Interoperability between Fixed/Mobile and Sound/Television Systems (2/3)
! (...) By adding a front end of BSS (s) signal, a portable receiver could also decode BSS (s) data streams because all broadcasting systems adopt the same multimedia and data broadcasting standard
8
Interoperability between Fixed/Mobile and Sound/Television Systems (3/3)
8-PSK 11 GHz8-PSK 11 GHz
CDM 2.6 GHzCDM 2.6 GHz
Front End for System E in BO.1130
Front End for System E in BO.1130
Back End AAC Audio
MPEG-4 Video
Back End AAC Audio
MPEG-4 Video
ARIB B-24 Common Multimedia/
Interactive System
ARIB B-24 Common Multimedia/
Interactive System
Back End MPEG-2 Video
AAC Audio
Back End MPEG-2 Video
AAC Audio
OFDM VHF/UHFOFDM VHF/UHF
Front End for System C in BT.1306
Front End for System C in BT.1306
MPEG-2 Systems
MPEG-2 Systems
0.5/1.5 MHz
ISDB-TSB One / Three Segments
5.6 MHz
One Segment out of ISDB-TW
Front End for System F in BS.1114
Front End for System F in BS.1114
Front End for System D in BO.1516
Front End for System D in BO.1516
One Segment Reception out of 13 Segments
BSS (s)BSS (s)
BSSBSS
9
Interoperability in Multimedia and Data Broadcasting Systems
Data Carousel
Object Carousel
Data Carousel
Data Transmission
JAVAJAVAECMA Script(+ JAVA)Execution
X-HTMLX-HTMLBMLPresentation
ATSC DASE
DVB MHP/ OCAP
ARIB STD B.24
Currently, JRG-1 is extracting the common parts of these systemsCurrently, JRG-1 is extracting the common parts of these systems
10
Interoperability using Transcoding
Video Format Converter
Video Format Converter
Video Encoder Video
Encoder Video
Decoder Video
Decoder
??? Transcoding
??? Transcoding
Data Encoder Data
Encoder Data
Decoder Data
Decoder
Audio Encoder 1 Audio
Encoder 1 Language
Translation Language
Translation
Audio Encoder 2 Audio
Encoder 2
Audio Decoder Audio
Decoder
SI / PSI Re-generatorSI / PSI Re-generator
D e m
ultiplex D
e m ultiplex
IBC Contents
IBC Contents M
ultiplex M
ultiplex
Local Contents Local
Contents
!
Language:English
Score: 1592980.7
-
https://www.itu.int/itudoc/itu...workshop/converge/s1pm1-p3.pdf
Data Source: un
ITU-R BT.1359-1 Relative timing of sound and vision for broadcasting (5 pages)
This document recommends maximum operating limits for delay between sound and picture. These delays arise from separation of sound and picture during processing or transmission. (...) These systems are generally based on, or are designed for maximum compatibility with, existing 525-line and 625-line systems using NTSC, PAL or SECAM colour encoding systems.
ITU-R BT.796 Parameters for enhanced compatible coding systems based on 625-line PAL and SECAM television systems (5 pages)
This document contains a set of target areas for improvements to be made in existing analogue colour television systems without loss of compatibility with existing receivers:
– picture enhancement techniques for:
– wider aspect ratio;
– reduced cross-effects between luminance and chrominance signals;
– ghost cancellation;
– increased resolution;
– data signalling;
– sound enhancement techniques for improved quality sound coding.
Language:English
Score: 1589352.4
-
https://www.itu.int/dms_pub/it.../0A/07/R0A070000040002MSWE.doc
Data Source: un
INTERNATIONAL TELECOMMUNICATION UNION
- 2 -
Guide to ITU-R Recommendations on the use of film in television
(under the responsibility of Working Party 6R)
The list below is an index of the Recommendations of the ITU-R related to technical specifications and operational methods applicable to the television use of programmes on film:
Recommendation ITU-R
Title
BR.265
Standards for the international exchange of programmes on film for television use
BR.1219
Handling and storage of cinematographic film recording
BR.1287
Broadcasting of programmes on film with multichannel sound
BR.1355
Viewing condition for telecine transfer of film images on a television display
BR.1374
Scanned area dimensions from 16 mm and 35 mm cinematographic film used in television
BR.1422
Operational practices for television use of film soundtracks encoded with noise reduction and matrix surround
BR.1441
Compromise scanned area dimensions for television from 35 mm wide-screen films
Basic operating practices for international exchange of film programmes*
Basic technical specifications and operating practices to be applied to the international exchange of programmes on film are given in Recommendation ITU-R BR.265 – Standards for the international exchange of programmes on film for television use.
(...) Recommendation ITU-R BR.1287 – Broadcasting of programmes on film with multichannel sound, specifies the general technical approaches to be taken in order to optimally exploit multichannel sound present on standard analogue optical soundtracks of feature films.
This Recommendation analyses three cases, namely:
– when it is desired to derive a monophonic sound signal for conventional monophonic television emission;
– when it is desired to derive a stereophonic sound signal for stereophonic television emission;
– when it is desired to carry the original stereophonic film sound with matrix encoding of surround sound through the television emission chain.
Language:English
Score: 1575432.5
-
https://www.itu.int/dms_pub/it.../0A/07/R0A070000040006MSWE.doc
Data Source: un
Leader - Codes
Manual for Bibliographic Description
TAGS
0XX
5XX
1XX
6XX
2XX
7XX
3XX
8XX
4XX
9XX
Other Manuals
Thesaurus
Library Home
UN Home
000 LEADER - Codes
GUIDELINES
MARC 21
Positions 05-06
Position 07
Positions 17-18
Position 05 - record status
Back to the top
a
- increase encoding level
c
- corrected or revised
d
- deleted
n
- newly created records
p
- increase in encode by level from pre-publication
Position 06 - type of record
Back to the top
a
- language material
c
- printed music
d
- manuscript music
e
- cartographic material (printed maps)
f
- manuscript map
g
- video recordings and other projected media
i
- nonmusical sound recordings
j
- musical sound recording
k
- two-dimensional non-projectable graphic
m
- computer files (e.g. CD-ROMs)
o
- kit
p
- mixed material
r
- three-dimensional artifact or naturally occurring object
t
- manuscript language material
Position 07 - bibliographic level
Back to the top
a
- monographic component part (analyzed resolutions and decisions, or chapters contained in monographs)
b
- serial component part (analyzed periodical articles)
d
- subunit (individual issues of periodical series)
m
- monograph/item (most documents and publications) / made up collection
s
- serial (periodical series)
Position 17 - encoding level
Back to the top
#
- full level
1
- full level, material not examined
2
- less than full level, material not examined
5
- partial (preliminary) level
7
- minimal level
8
- prepublication level
u
- unknown
z
- not applicable
Position 18 - cataloguing form
Back to the top
#
- non-ISBD
a
- AACR 2
i
- ISBD
u
- unknown
Maintained by the Department of Public Information (DPI), Dag Hammarskjöld Library.
Language:English
Score: 1546759.9
-
https://www.un.org/depts/dhl/unbisref_manual/bd/cleader.htm
Data Source: un
REVISION OF THE INTERNATIONAL STANDARD FOR NOTICES TO SKIPPERS IN INLAND NAVIGATION (RESOLUTION NO. 80): NOTICES TO SKIPPERS ENCODING GUIDE FOR EDITORS
Two documents have been developed to facilitate the harmonized encoding of NtS
messages nationally and internationally: the NtS Encoding Guide for editors and the NtS
Encoding Guide for application developers. (...) The NtS Encoding Guide for editors is included in the present Appendix A.
(...) If available, an absolute value shall be provided.
• least depth sounded: shall be used in case depth may cause problems (e.g. due to
siltation).
Language:English
Score: 1535723.5
-
https://daccess-ods.un.org/acc...=ECE/TRANS/SC.3/2019/16&Lang=E
Data Source: ods
Recommendation ITU-R BT.1665 “Considerations for colour encoding and spatial resolution for LSDI display”
This Recommendation specifies the factors that should be used as the basis of the design and evaluation of colour encoding and spatial sampling methods for digital display of high‑quality images in theatres. (...) Recommendation ITU-R BT.1727 “Terrestrial and satellite delivery of programme material to LSDI venues”
This Recommendation specifies the video source-coding system, sound coding system and emission systems for the terrestrial or satellite delivery of program material to LSDI venues.
(...) Recommendation ITU-R BS.1734 “Basic performance requirements for the sound components of LSDI applications for presentation in a theatrical environment”
This Recommendation specifies the requirements relevant to the presentation of the sound components of the large‑screen digital imagery (LSDI) applications intended for presentation in a theatrical environment.
Language:English
Score: 1522592
-
https://www.itu.int/dms_pub/it.../0A/07/R0A070000040009MSWE.doc
Data Source: un
INTERNATIONAL STANDARD FOR NOTICES TO SKIPPERS IN INLAND NAVIGATION
Structure of NtS and encoding of NtS messages
This chapter describes the structure and encoding of standardized electronic NtS messages.
(...) The ISRS Location Codes and the reference data of objects are maintained by the member
States in the RIS Index.
4.4 Rules for encoding of NtS messages
NtS messages shall be encoded in line with the NtS Encoding Guide for editors (appendix A)
and in line with the NtS Encoding Guide for application developers (appendix B).
(...) Two documents have been developed to facilitate the harmonized encoding of NtS messages
nationally and internationally: the NtS Encoding Guide for editors and the NtS Encoding
Guide for application developers.
Language:English
Score: 1512259.4
-
https://daccess-ods.un.org/acc...CE/TRANS/SC.3/199/REV.1&Lang=E
Data Source: ods