[Mp4-tech] [MPEG-4 Audio] Error Concelament in MPEG-4 HEAAC Profile

[Vora, Veenit]

Hello Everyone,
I am working on the HEAAC profile (AAC-LC + SBR) of the MPEG-4 standard.
I had the following queries regarding Error Concelament of an encoded bitstream which is obtained by applying the above-mentioned AOTs to the audio stream:
1. Is Error Concealment possible for this profile?
2. If Error Concelament is possible for this profile, is the procedure/algorithm for Error Concealment standardised by MPEG-4 (where can one find the standardised procedure for Error Concelament in the MPEG-4 standard or are there any other documents that give the proedure/algorithm for this profile)?
3. Are there test streams available to test the Error Concelament tool (for the HEAAC profile) and what would be its conformance criteria?
Thanking everyone in advance. Awaiting an early reply.
Regards,
Veenit Vora.
Patni Computer Systems Ltd.,
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