[CELT-dev] One question about comparison between HE-AAC v2 and CELT

[Alex Converse]

On Thu, Aug 5, 2010 at 9:49 AM, wei <tsingmei at gmail.com> wrote:
> Hi ,
>
> I visited celt website. I saw the comparison between AAC-LD with celt. But
> how about the HE-AAC? If the scenario is that we limit the bandwidth to
> 50kbps, will music encoded by HE-AAC v2 be better than CELT? What's HE-AAC
> v2's delay?
>

He-AACv2 is not a low delay codec at all. It is much worse than
AAC-LC. It has a delay of about 405 ms.

See http://www.eetimes.com/design/audio-design/4015911/Algorithmic-delay-and-synchronization-in-MPEG-audio-codecs
for a full analysis

Regards,
Alex Converse