Hi, I managed to get the codec into netmeeting. Unfortunately it doesn't properly work. I tried to talk vie net, but only erranous packets are decoded. Did I possibly register the codec wiht incorrecxt parameters or is this a problem of the acm codec? bye, D A --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Hi,> I can't tell why. Try to register mode 8kHz Mono mode Q3 or Q4 forOk, I will try it. I tried 16kHz Q3 mono at 9,8kbit.> and upwards use 2 frames. All this is defined in codec.c in the > QualityInfo[] table.Oh OK. I looked a bit in the sources, but it was too confusing for me. ;-)> I would be interested in seeing the code for registering the Speex codec > with Netmeeting.Well, a very straight forward approach. There is a sample app which comes with the netmeeting sdk. I just filled the values with the header of a speex wave I created. I can send you the source if you like. Sprichst Du Deutsch? I mean in emails we could talk German then. bye, D A --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Christian Buchner
2004-Aug-06 15:01 UTC
[speex-dev] @Christian Buchner: speex acm & netmeeting
Hi,> I managed to get the codec into netmeeting. Unfortunately it doesn't > properly work. I tried to talk vie net, but only erranous packets are > decoded. Did I possibly register the codec wiht incorrecxt parameters or > is this a problem of the acm codec?I can't tell why. Try to register mode 8kHz Mono mode Q3 or Q4 for Netmeeting. Only these modes pack exactly 1 speex frame into one data packet. That ensures lowest latency. Q0-Q2 in contrast pack 8 frames into a packet which is inacceptable for realtime conversation. Q5 and upwards use 2 frames. All this is defined in codec.c in the QualityInfo[] table. The columns given below are - Bits per Speex frame - framesize (160 samples in NB mode) - Speex Frames per Packet (see Wave nBlockAlign) - effective bitrate in kbit/s here's an excerpt for the 8kHz Mono modes 43, 160, 8, 2150, // 8000 1 0 !! extremely bad for NM 79, 160, 8, 3950, // 8000 1 1 !! (high latency) 119, 160, 8, 5950, // 8000 1 2 160, 160, 1, 8000, // 8000 1 3 !! Good mode for Netmeeting 160, 160, 1, 8000, // 8000 1 4 !! Good mode for Netmeeting 220, 160, 2, 11000, // 8000 1 5 220, 160, 2, 11000, // 8000 1 6 !! all these have 300, 160, 2, 15000, // 8000 1 7 !! so-so latency... 300, 160, 2, 15000, // 8000 1 8 364, 160, 2, 18200, // 8000 1 9 492, 160, 2, 24600, // 8000 1 10 <p>I would be interested in seeing the code for registering the Speex codec with Netmeeting. Christian --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.