Home > other >  G. 722.1 Annex C some of the problems
G. 722.1 Annex C some of the problems

Time:10-02

Debug my unit met the problems of the audio video conference system,
We use video conference speech part of Polycom g. 722.1 Annex C 48 KBS, crawl down in the process of communication UDP/RTP packets to remove packets end costs 120 byte (20 ms) of pure speech coding data, I put all the pure data according to time order together to get a file, and then use C programming language of itu-t recommendation for decoding, get the PCM file is the noise signal, check the binary file found each byte is "00", I put the size of each byte after the flip is still a noise signal, encoded files whether need to add the necessary end to decode correctly, if so what is the format?
In the ITU download Rec_ITU - T_G. 722.1 (2005) _vectors_Fixed - Rel. 2.1 file after g. 722.1 encoded file format pak and ITU, what is their specific format?
Also read the "the From ITU - T G. 722.1 to ITU -t g. 722.1 Annex C", is not very understand why there are 16 in Categorization part way?
Thank you for your attention
  • Related