International organisation for standardisation

2.3Creation of Task Groups

Task groups were convened for the duration of the MPEG meeting, as shown in . Results of task group activities are reported below.

2.4Approval of previous meeting report

The 83^rd Audio Subgroup meeting report was registered as a contribution, and was approved.

2.5Review of AHG reports

There were no requests to review any of the AHG reports.

2.6Joint meetings

The joint meetings with Audio for the week are shown below:

Day	Time	What	Where
Thu	1230-0100	Interactive Music MAF	Audio
Thu	1400-1500	Software Repository	At Systems
Thu	1500-1600	Brainstorming Session on Next-Generation Audio Activities	At 3DG

2.7Received National Body Comments and Liaison matters

The NB Comments and Liaison documents for the meeting that require a response are as shown below.

No.	Title	Topic	Response by
m15246	IEC CDV 61883-8 [SC 29 N 9145]	Transmission of ITU-R BT.601 Style Digital Video Data (and Audio)	SRQ
m15248	IEC CD 62537 [SC 29 N 9147]	Digital loudspeaker interface	SRQ
m15260	Liaison Statement from ITU-T SG 16 [SC 29 N 9195]	ITU-T G.722.1 Fullband Extension	SRQ
m15261	Liaison Statement from ITU-T SG 16 [SC 29 N 9196]	Enhanced Low Delay AAC	Respond at July meeting
m15262	IEC NP: IEC 61937-11 [SC 29 N 9197]	Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 -- Part 11: LATM	SRQ
m15483	Liaison Statement from IEC TC 100	Format for MP4FF containing AVC and AAC	ALL

Bernhard Grill, FhG, commented that perhaps the ITU-T can send a statement acknowledging their understanding that an MPEG standard is a compression format and associated decoder, that there is not one and only one MPEG encoder, and hence performance test results represent encoder performance at a given time. The Chair noted that perhaps the Liaison process can be used to reach this understanding.