hi, not sure about the jitter buffer configuration but, i know that AMR works per frame so if packet is droped u might hear some strange jumps (at least in low rate amr) but the decoder can still decode the next frames. on nokia u have option to let the decoder guess the next frame (in VAS). speex has PCL which tell speex to guess the next frame. not sure about G.729. On Mon, Jun 15, 2009 at 1:46 PM, Nicholas Xu <xunich at gmail.com> wrote: > Hi, > > Would you please provide some hints how to set adaptive jitter buffer > (pjmedia_jbuf_set_adaptive)? It seems that the parameter 'prefetch' is > set to 0 in pjsua by default, which disables prefetch buffering. I > think prefetch buffering is an important function of jitter buffer. Is > there drawback of this feature? > Another question: Should adaptive jitter buffer be used for codec such > as speex, AMR and G.729 which have ACELP, I heard that drop audio > frame will make decoder out of sync. Do you have any suggestion how to > make adaptive jitter buffer with those codecs (and their embedded > PLC)? Thanks in advance. > > Best Regards, > Nicholas > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > -- ??? ?????? ??: 050-3930056 nir.elkayam at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090615/95c4d3fd/attachment.html>
