AAC MTU performance?
AAC MTU performance?
- Subject: AAC MTU performance?
- From: Gordon Rankin <email@hidden>
- Date: Fri, 22 Jan 2016 15:53:24 -0500
- Organization: Wavelength Audio, ltd.
- X_cmae_category: , ,
- X_cmae_category: , ,
Craig,
We are releasing an A2DP AAC solution this month. I looked at our code
after reading your response on the MTU subject and found we are
negotiating at 672 bytes. Is there some sort of calculation with the MTU
number and the bandwith? I searched older posts which indicated a
maximum of 885 bytes. Any information would be appreciated.
Thanks,
Gordon
Date: Thu, 21 Jan 2016 11:07:01 -0800
From: Craig Dooley<email@hidden>
To: Feng Yu Hong<email@hidden>
Cc:"email@hidden" <email@hidden>
Subject: Re: A2DP AAC codec bandwidth
Message-ID:<email@hidden>
Content-Type: text/plain; charset="utf-8"
The encoder takes into account the MTU negotiated when determining the maximum frame size available. For example, if the device has an MTU of 565 for the AVDTP channel, that only allows for ~192kb/s, even if the endpoint configuration says the device can handle 262 kb/s.
- Craig
--
J. Gordon Rankin
Owner and Chief Scientist
====== Wavelength Audio, ltd ======
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