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Topic: AAC frequency
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Joined: 28 June, 2012
10 January, 2013, 02:14:18 AM
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.
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