Organisation internationale de normalisation

Ballots to process

The following table indicates the ballots to be processed at this meeting.

No	Title	Closes	Ballot
N14734	ISO/IEC 14496-3:2009/Amd.4:2013/DCOR 1  New levels for AAC profiles	2014-10-13	m35245
N14735	ISO/IEC 14496-3:2009/DCOR 5	2014-10-13	m35246
N14448	ISO/IEC 14496-5:2001/PDAM 37	2014-08-06	m34831
N14737	ISO/IEC 14496-26:2010/DCOR 8	2014-10-13	m35249
N14451	ISO/IEC 23003-3:2012/DCOR 3, Unified speech and audio coding	2014-08-05	m34830
N14452	ISO/IEC 23003-3:2012/Amd.1/DCOR 1, Conformance	2014-07-15	m34827
N14453	ISO/IEC 23003-3:2012/Amd.2/DCOR 1, Reference software	2014-08-05	m34829
N14758	ISO/IEC 23008-3/PDAM 1, 3D Audio Profiles	Did not issue.

7. Received National Body Comments and Liaison matters

The Liaison statements were presented, discussed, and resources to draft responses were allocated.

Number	Title	Topic	Response
m34857	Liaison Statement from ITU-R SG 6 on Recommendation ITU-R BS.1116-2	Information on BS.1116 revision
m34858	Liaison Statement from ITU-R SG 6/WP 6C on MPEG-H 3D-Audio	Information on BS.1534 revision
m35309	ATSC Liaison on 3D audio	ATSC 3.0 and layered service model	Yes

8. Joint meetings

Groups	What	Where	Day	Time
Audio, Systems	3D Audio on MP2 TS, CICP, 3D Audio FF Support	Audio	Wed	1130-1300
Audio, ARAF	Audio in Augmented Reality	Audio	Wed	0200-0300
Audio, Requirements	3D Audio Main Profile	Audio	Thu	0900-0930

Documents to be covered in joint meeting with Systems:

	MPEG-2 TS
m35024	MPEG-H 3D Audio Multi-Stream System Operation	Robert Brondijk	HSys
m35025	MPEG-H 3D Audio Single-Stream System Operation	Robert Brondijk	HSys
m35022	Thoughts on ISO/IEC13818-1:201x / PDAM 6	Harald Fuchs, Michael Kratschmer, Stephan Schreiner	HSys
m34775	Thoughts on 13818-1-PDAM6	Schuyler Quackenbush	HSys
	CICP
m35031	Proposed Study on ISO/IEC 23001-8:2013/DAM 1	Michael Kratschmer, Ingo Hofmann, Max Neuendorf, Frank Baumgarte	HSys
	File Format
m35140	Considerations on 3D audio File Format in ISOBMFF	Mitsuhiro Hirabayashi, Toru Chinen	FF
m35034	Proposed update to WD 23008-3 Amd X, 3D Audio File Format Support	Ingo Hofmann, Harald Fuchs, Michael Kratschmer, Bernd Czelhan	FF

9. Plenary Discussions

There were no Audio plenary discussions.

4. Task group activities

In this report consensus positions of the Audio subgroup are highlighted in yellow. Other text captures the main points of presentations and subsequent discussion.

1. Joint Meetings

   1. Joint meeting with Systems at Audio (Wed 11:00 – 13:00)

CICP

Michael Kratschmer, FhG-IIS, presented

m35031

Proposed Study on ISO/IEC 23001-8:2013/DAM 1

Michael Kratschmer, Ingo Hofmann, Max Neuendorf, Frank Baumgarte

HSys

The presenter reviewed a list of identified issues. These were discussed and some revisions were suggested. It was the consensus of the Audio and Systems experts to incorporate the revisions into the Study On text.

File Format

m35140

Considerations on 3D audio File Format in ISOBMFF

Mitsuhiro Hirabayashi, Toru Chinen

FF

The chair reviewed Audio recommendations when this was presented in Audio earlier in the week.

Ingo Hofmann, FhG-IIS, presented

m35034

Proposed update to WD 23008-3 Amd X, 3D Audio File Format Support

Ingo Hofmann, Harald Fuchs, Michael Kratschmer, Bernd Czelhan

FF

The proposed FF boxes expose

• 
  MPEG-H 3D Audio decoder setup information
  
• 
  User interaction information
  

Audio and Systems experts discussed the proposal and revisions were suggested. It was noted that StreamID (e.g. thisStreamID) must be unique within the scope of the application, and that this should be explained in the text.

It was the consensus of Audio and Systems experts to issue the edited document as a 23008-3/PDAM X from this meeting.

MPEG-2 TS

m35024	MPEG-H 3D Audio Multi-Stream System Operation	[e-mail],Robert Brondijk	HSys
m35025	MPEG-H 3D Audio Single-Stream System Operation	[e-mail],Robert Brondijk	HSys
m34775	Thoughts on 13818-1-PDAM6	Schuyler Quackenbush	HSys
m35022	Thoughts on ISO/IEC13818-1:201x / PDAM 6	Harald Fuchs, Michael Kratschmer, Stephan Schreiner	HSys

Stephan Schreiner, FhG-IIS, presented a candidate Study on PDAM6 that was a merge of m35022 and m34775. Each proposed change was reviewed and discussed.

It was the consensus of Audio and Systems experts to:

• 
  Take PDAM text as a baseline and remove text if there is consensus to remove add text from the contributions if there is consensus to add, and use the result as Study On PDAM6.
  
• 
  Thoughts On document is open issue technology in PDAM text or proposed at this meeting. This will include positions in m35024 and m35025.
  

Frank Baumgarte, Apple, reviewed

m35128

Proposed study on ISO/IEC 23003-4:2014 / DIS, Dynamic Range Control

Frank Baumgarte, David Singer, Michael Kratschmer, Bernhard Neugebauer

DRC

This was for the benefit of Systems experts, as this was already presented in Audio.

2. Joint meeting with 3DG at Audio (Wed 1400-1500)

Traian Lavric, Telecom SudParis, gave a presentation that explained the relevant use case for discussion during this joint meeting.

The use case is for second screen applications with runtime delivery of interactive content.

• 
  Main screen plays out audio program
  
• 
  Second screen has microphone that receives main screen audio program and computes fingerprint form the audio.
  
• 
  Fingerprint is sent to sever where server identifies the main screen program (via database search of stored watermarks). It also sends second screen local timestamp associated with the captured audio.
  
• 
  Server sends to second screen the relevant second screen content (e.g. interactive content) along with second screen local timestamp of when it should be presented.
  

Juergen Herre, FhG-IIS/IAL, noted that MPEG-7 Audio Signature descriptor and Enhanced Audio Signagure have been demonstrated to implement robust audio program detection. The MPEG-4 Audio Synchronization technology has been demonstrated to achieve robust timeline detection once the program is known.

Use case requirements are:

• 
  Identify microphone sensor attributes
  
• 
  Program identification from within a large number of possible programs
  
• 
  Timestamp within the identified program
  

Microphone data buffer parameters

• 
  Sampling rate (enumerated list)
  
• 
  Bits per word (16, 24 or 32)
  
• 
  Two’s complement representation (no other choice)
  
• 
  Big-endian or Little-endian
  

3.