0000396: Audio-Stream of video does not play back, if video-speed is changed. This also applies to audio-tracks.

Notes
(0001359) cinephiliac (updater) 2008-11-23 18:19	Acknowledged on: ffmpeg: Revision: 15905 Last Changed Date: 2008-11-21 19:29:49 -0500 (Fri, 21 Nov 2008) mlt: Revision: 1240 Last Changed Date: 2008-11-17 00:57:32 -0500 (Mon, 17 Nov 2008) mlt++: Revision: 1240 Last Changed Date: 2008-11-06 00:32:23 -0500 (Thu, 06 Nov 2008) kdenlive: Revision: 2718 Last Changed Date: 2008-11-19 18:13:27 -0500 (Wed, 19 Nov 2008) Returning speed to 100% reverses the problem. Increasing to 105% or slowing to 50% brings it back.

(0001740) ddennedy (developer) 2008-12-17 07:37	This is a known side-effect as indicated by the dropping of the audio waveform. Right now, this feature is not a comprehensive time manipulation; many features have their limitations. Therefore, this issue can be considered a feature request. In that case, what do you expect to happen to the audio? Do you want to use some fancy audio dsp to adjust the duration without affecting the pitch? http://www.surina.net/soundtouch/ [^]

(0001746) cyberbeat (reporter) 2008-12-17 08:58	Yes, a realtime dsp for adjusting duration would be good. Perhaps let choose a) if effect should be a fast realtime, or should be applied (modifiying the data) b) the algorithm (speed/quality) c) perhaps different for preview/rendering (rendering always good) I made another feature request about setting markers for realtime duration-correction inside of tracks, I think same realtime-algorithms could be used.

(0001764) ddennedy (developer) 2008-12-17 19:12	Jeesh, don't forget motion-estimated interpolation on the video as well! Someone please change this to a feature request, but do not target any specific near term release.

(0001863) madsdyd (administrator) 2008-12-21 13:24	Changed to long-term feature request.

Issue History
Date Modified	Username	Field	Change
2008-11-23 13:35	cyberbeat	New Issue
2008-11-23 13:35	cyberbeat	Build/Install Method	=> Distribution package
2008-11-23 18:19	cinephiliac	Note Added: 0001359
2008-11-23 18:19	cinephiliac	Status	new => acknowledged
2008-11-23 18:19	cinephiliac	Category	Transitions => MLT
2008-12-17 07:37	ddennedy	Note Added: 0001740
2008-12-17 08:58	cyberbeat	Note Added: 0001746
2008-12-17 19:12	ddennedy	Note Added: 0001764
2008-12-21 13:24	madsdyd	Note Added: 0001863
2008-12-21 13:24	madsdyd	Priority	normal => low
2008-12-21 13:24	madsdyd	Severity	minor => feature
2008-12-21 13:24	madsdyd	Projection	none => major rework
2008-12-21 13:24	madsdyd	ETA	none => > 1 month

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