Real-time Communications – such systems would most likely run at 60 Hz or 16 ms per frame, so realistic systems might have one-way latency of 45 ms (three frame intervals). Audio experts noted that the one-way latency of AAC-LD is approximately 20 ms and the one-way latency of SAOC LD is 26 ms (without SBR tool).
Mobile Streaming – These applications are have error resilience for e.g. mobile air interface links. Generally these are with Internet Protocol packetization and associated lower level error checking.
Camcorders – It is not clear what it the standardization challenge for audio.
Streaming, storage, download – In these applications most likely random access is a primary concern.
3D Video or telepresence – These entail multiview displays in which views change with viewing angle. For audio, different head placement might result in different sound field.