Hi everyone !

I've started using Kdenlive recently and I'm pretty happy with it ! Thanks to everyone in the team !

I have one issue though. I made a video with 2 video and 3 audio tracks. The video source is a camera producing 1080p video and the sound is from 16 bits 44KHz OGG files. Videos have sound (in 48KHz) but the sound in those tracks is muted.

--> when I render a video (I tried several presets : mpeg2, 4, etc. and tried both mp3 and ogg audio codecs and also several frequencies : 44.1 and 48 KHz), the sound is full of "micro holes / gaps". It's not constant but happens every now and then. Kinda sounds like a sync or buffer underrun problem.

Any idea ?

I use the latest Kdelive 0.9.4 and libmlt 0.8.8 from the Kubuntu 12.10 PPA as advised on this very website. I have few PPAs, mostly Kubuntu-backports.

I would really be grateful if any of you could give me a hand and most importantly, if I could help fix a bug ;) Cheers !

Oops, I forgot 2 things :

- audio is perfect in the preview (before rendering)
- the video files are 23.98 FPS

I also tried to generate a 48KHz .wav file separately (it's OK) but then after inserting it back into the video and rendering it, sound is 'stuttering' again...

Edit : as a work-around, I replaced the audio track afterwards in avidemux with the wav produced separately in kdenlive

Edit : the issue still occurs with kdenlive 0.9.6 as of 15th of april 2013

Edit : the bug was fixed in libmlt so it should be there in the next release :-)