Hi Nicolas, Although I haven't noted the issue you're having with the 'saturated' sound I have noted Cinelerra is VERY picky about audio formats. For me PCM/wav is always out of sync even if I match the project sample rate to match the imported audio.
For me using aac (libfaac) at 320kb as the audio codec seems rock solid with most video codecs. I don't really love working with a compressed audio codec at the editing stage but keeping the bitrate high (320kb) seems to work OK without hurting the Audio output of the finished product in a noticeable way. I usually export the audio as wave or aac and so far there are no noticeable artifacts or other unpleasant issues. I have a gut feeling that a lot of the 'bugginess' in Cinelerra disappears when attention is paid to the input codecs, When I use aac I rarely have crashes and never have sync issues. As I said aac sounds like a bad choice but I have the best luck using it. Just my $.02 on the subject > Hi, > > At present, it seems I'm beginning to get rather comfortable with the > video codecs and formats issue. > But there's still a point I can't understand about the audio. > > I'm starting with a small video (.avi) containing some video stream and > the audio stream is show as below by avconv/ffmpeg : > > Stream #0.1: Audio: pcm_u8, 8000 Hz, 1 channels, u8, 64 kb/s > > Cinelerra accepts it well, but the audio track is shown completely > "saturated", even when I try to reduce the sound fade level. > > In fact, when reducing the fade level, the sound outputs lower, ok. > But the sound is still saturated. > > Frequently with Cinelerra, what is you is not what you get, in the > better way : rendering produces a better export than what Cin is showing. > I then tried to export into different sound codecs and settings, but > nothing gets better. > > There is no problem for me to prepare my medias and convert the sound > stream of my input files. > So have you any advice of a rock solid codec the will be gently managed > by Cinelerra? > > Rafaela's hint is to use pcm_s16le, but when using it, I get a sound > that is playing twice as fast as normal. Setting -ac 2 gives me a mute > video. > > -- > Nicolas Ecarnot > > _______________________________________________ > Cinelerra mailing list > [email protected] > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
