Codec ID
|
Core Coder
|
Description
|
Total Bitrate (kbps)
|
N8851 Reference
|
REF
|
-
|
Original 5.1 channel items
|
-
|
Table 6
|
HE-AAC _MC_A
|
HE-AAC
|
High bitrate reference case, HE-AAC discrete
|
160
|
Table 1
|
AAC_MPS_MTX
|
AAC
|
AAC_MPS decoded with MPS in Enhanced Matrix Mode.
|
160
|
Table 3
|
AAC_DPL2
|
AAC
|
High bitrate reference case, DPL2 downmix encoded with AAC stereo. Decoded with DPL2
|
160
|
Table 3
|
LP35
|
-
|
Low pass anchor (based on 5.1 original)
|
-
|
Table 1
|
The Chair notes that all items in the table above use a stereo core coder, while the Swissaudec may choose to use a mono core coder, in which case the items will be re-coded from the originals.
It is expected that any subjective performance results will use the MUSHRA test methodology, and Audio experts strongly urged Swissaudec to include the 3.5 kHz lowpass filtered anchor in the systems under test, such that the test is a proper MUSHRA test methodology.
5.2Responses to Liaison and NB comments
Liaison statement and NB comment responses generated by Audio were presented and approved.
5.3Recommendations for final plenary
The Audio recommendations were presented and approved.
5.4Establishment of Ad-hoc Groups
The ad-hoc groups shown in the following table were established by the Audio subgroup. Unless otherwise indicated, Ad Hoc group meetings will be held at the location of the next MPEG meeting on the weekend preceding that meeting.
No.
|
Title
|
Mtg
|
N12613
|
AHG on 3D Audio and Audio Maintenance
|
No
|
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