0002201: Audio crackles + second keyframe ineffective within `Volume (keyframeable)'

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Date Submitted

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0002201

Kdenlive

Effects

public

2011-06-29 20:11

2011-11-01 18:56

Reporter

AlexK

Assigned To

j-b-m

Priority

normal

Severity

major

Reproducibility

always

Status

closed

Resolution

fixed

Platform

32 bit intel and alike

Debian Linux

OS Version

4.0

Product Version

Recent git

Target Version

Fixed in Version

0.8.2

Summary

0002201: Audio crackles + second keyframe ineffective within `Volume (keyframeable)'

Description

Many issues with the Volume (keyframeable) effect:

1 Audio crackles (static) in use
2 Second keyframe ineffective*
3 Effect Stack window several pixels short at RHS
4 Position control does not work**

*Change from 1->2 is effective; then returns to kf#1 setting. Clip shows kf#2 level.
**Slider works; up/down chevrons work; numeric digits do not (display only, but can be selected)

Steps To Reproduce

1 drop clip in timeline
2 select Volume (keyframeable) effect
3 add keyframe
4 leave kf#1 at 100%; set kf#2 at 10%; move kf#2 a few seconds along
5 play clip

(crackles throughout)
(volume returns to 100% after reaching kf#2)

Additional Information

~$ kdenlive/20110628/start-kdenlive --version
Kdenlive Builder Wizard version: 11
libvpx: commit 9bcf07ae4a1ebd83713350ce7ef9c1d47de9d30f Date: Tue Jun 28 12:54:25 2011 -0700
x264: commit 4c552d873ada1be3cf2d77965427fab599d051a0 Date: Thu Jun 9 01:34:14 2011 +0400
frei0r: commit 6c65d6a48b8c0d51791bc3ba7e25a161c95fac30 Date: Wed Mar 16 00:54:34 2011 -0700
ffmpeg: commit dbe5f0172b4f123b15bc8ada82dd17b13c4bbbd7 Date: Tue Jun 28 22:23:52 2011 +0200
mlt: commit febfd488055a5994c96c5bc6b33213a609a7b054 Date: Sun Jun 26 23:07:08 2011 -0700
kdenlive: Revision: 5745 Last Changed Date: 2011-06-28 22:15:05 +0100 (Tue, 28 Jun 2011)
Qt: 4.7.3
KDE Development Platform: 4.4.5 (KDE 4.4.5)
Kdenlive: 0.8.1 (rev. 5745)

Also suffering occasional sudden crash on pressing play button in Monitor.

Setting a third keyframe at far rhs will then work as expected. Crackle volume varies with effect volume level.

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Notes
(0006986) AlexK (reporter) 2011-06-30 00:04	My note about the crackles is wrong: I was performing the experiment within a project corrupted by an earlier bug. Re-checking without any project loaded shows a clean audio track. The info on reversion to 100% audio is accurate. The visual within the clip shows audio to remain at the same level as kf#2 (10%) until the end. The actual level is 100% after the track progresses beyond kf#2. Placing a 3rd kf at clip end at 10% is the workaround (or possibly design).

(0006996) j-b-m (administrator) 2011-06-30 16:48	Ah, good to hear. The volume effect works in a way that is begins at first keyframe and ends at last keyframe, so it is nor:mal to have 100% volume after last keyframe. This behaviour is not consistent with all effects, since some effects keep the last value after last keyframe. Last night, I made a small change to the timeline display so that if an effect is not applied before first kfr / after the last one, there is no line drawn before first / after last keyframe in the timeline keyframes, so it's slightly easier to understand.

(0006997) AlexK (reporter) 2011-06-30 21:15 edited on: 2011-06-30 22:43	Consistency is good. I was bitching to an artist friend about my problems with kdenlive. He pointed out some of the hair-pulling problems he experiences with Premiere Pro. Chances of Premier Pro bugs ever being fixed? Thank you kindly, j-b-m. That is a sensible change; it was the disparity between visual feedback & reality that is the source of this report. This report may be marked `closed' (I love saying that). Added after update to SVN 5751: yes, that will do it nicely. It is obvious now that extra keyframes (may) need adding.

Issue History
Date Modified	Username	Field	Change
2011-06-29 20:11	AlexK	New Issue
2011-06-30 00:04	AlexK	Note Added: 0006986
2011-06-30 16:48	j-b-m	Note Added: 0006996
2011-06-30 21:15	AlexK	Note Added: 0006997
2011-06-30 22:43	AlexK	Note Edited: 0006997	View Revisions
2011-07-05 13:11	j-b-m	Status	new => resolved
2011-07-05 13:11	j-b-m	Fixed in Version	=> 0.8.2
2011-07-05 13:11	j-b-m	Resolution	open => fixed
2011-07-05 13:11	j-b-m	Assigned To	=> j-b-m
2011-11-01 18:56	j-b-m	Status	resolved => closed