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audio - AAC RTP timestamps and synchronization - Stack ...
https://stackoverflow.com/questions/13726282/aac-rtp-timestamps-and-synchronization#:~:text=Timestamp%20on%20Audio%20RTP%20packet%20%3D%3D%20the%20number,the%20rtp%20packets%20with%20difference%20of%20128%20ms.
RTP Timestamp Calculation - LM Tools
https://lmtools.com/content/rtp-timestamp-calculation
Audio RTP Timestamps One can choose a random value for audio RTP timestamp. And for successive Audio RTP packets, timestamp should be incremented by sampling rate / packets per second. Lets consider a case where sampling rate is 8kHz and packetization time is 20ms. One frame corresponds to 20ms For 1 second, there will be …
How to calculate the RTP Timestamp for each packet in …
https://stackoverflow.com/questions/24658525/how-to-calculate-the-rtp-timestamp-for-each-packet-in-an-audio-stream
Audio RTP payload formats typically uses an 8Khz clock. Then take the first audio sample containing e.g. 20ms and assign this timestamp t = 0. 20 ms is a 1/50 of a second, hence this equals a 8000/50 = 160 timestamp increment for the following sample.
RTP Timestamps for Variable Frequency Codecs
https://www.ietf.org/old/2009/proceedings/04nov/slides/avt-8.pdf
–For compatibility with other MPEG systems, MPEG Audio uses 90kHz RTP timestamp clock separate from the audio sampling clock [RFC 3551 sections 4.5.2 and 4.5.13, RFC 3119] ⇒Using RTP clock rates other than the sampling rate is allowed, but must consider how it will affect the overall system design
RTP_statistics - Wireshark
https://wiki.wireshark.org/RTP_statistics
RTP timestamp: RTP timestamp is based on the sampling frequency of the codec, 8000 in most audio codecs and 90000 in most video codecs.
RTP Protocol Transport of H.264 Video and AAC Audio v1 2
https://www.cimarronsystems.com/wp-content/uploads/2018/05/RTP-Protocol-Transport-of-H.264-Video-and-AAC-Audio-v1_2.pdf
RTP Protocol Transport of H.264 Video and AAC Audio (the initial value of the sequence number should be random). Timestamp:(32 bits) The Timestampreflects the sampling instant of the first octet in the RTP data packet.
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