Skip to main content

Notice

Please be aware that much of the software linked to or mentioned on this forum is niche and therefore infrequently downloaded. Lots of anti-virus scanners and so-called malware detectors like to flag infrequently downloaded software as bad until it is either downloaded enough times, or its developer actually bothers with getting each individual release allow listed by every single AV vendor. You can do many people a great favor when encountering such a "problem" example by submitting them to your AV vendor for examination. For almost everything on this forum, it is a false positive.
Topic: AAC frequency (Read 1242 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

AAC frequency

Hi,

I implemented RTSP streaming protocol for music streaming.

From SDP protocol i got below value for RTPMAP field.

Media Attribute (a): rtpmap:96 MP4A-LATM/22050/1



From RTPMAP field information, received data type is AAC with frquency 22050.


If i try to play the received RTP data with this frequency song clarity is not good.

I tried to play with different AAC frequencies (frequency values are taken from
"ISO/IEC 13818-7 (AAC)" document). Finally with 64000 frequency is giving good clarity.

How to calculate the frequency for AAc data from RTP streams?

What is default frequency for AAc data?

Thanks in advance.

Regards,

swathi jakkam.

 
SimplePortal 1.0.0 RC1 © 2008-2021