Wasn’t sure if this is a bug or intentional, so am posting here instead. I’ve use VEGAS Pro on Windows for many years for my video editing needs. VEGAS also had a very decent audio editor onboard with support for VSTs. If applying a reverb VST in VEGAS on a short audio clip, it would keep the reverb going after the clip had already finished. Which is expected behavior. But in Kdenlive, the reverb will stop immediatelly after the short audio clip has finished playing. Meaning that the reverb will sound extremely unatural. A workaround I’ve come up with is to insert an audio clip after the short clip and set the volume of that one to zero. Then the reverb will keep playing on.
No problem. I hope this workaround helps others! Could you link me to a post that mentions this issue as well? I wasn’t able to find another post about this for the life of me.
I wouldnt necessary call this “expected” behaviour. Dropping a Delay / Reverb on a clip in Premiere or Avid will not cause the effect to continue over the length of the clip. Standard workflow (for me) is an effect track (i.e. with a Delay / Reverb as Track effect) where i put the part of the clip i want to be affected.
A nice alternative would be if it was possible to override the Mixer assignment on a “per Clip” base to - instead of sending a clip output to the default track mixer - send it to a Subgroup, which has the desired effect applied.
When I do this, the reverb reverberates a bit, sounds much more natural than when I put it on the audio clip or on the timeline. Try it out and please report back.
PS: Reverb: which one do you use?
TAP Reverberator, Plaste reverb or C* Plate -Versatile?
Yes, that’s the better method because the effect on the master affects everything in the project and not just the clip that needs the reverb.
Do you know an easy way to add silence? So far I’ve chosen an audio clip that only has a little quiet noise. How do you do that?
If I was going to add ‘native’ support for this to kdenlive, I’d probably just add an option to allow audio clips to be padded in the timeline (at their beginning and end). That way you can naturally keyframe effects over the whole duration you want that audio clip to act for, independently of when the source samples for some filter begin or end.
That sounds very interesting and it would save me a lot of work - but how exactly do you do it? Unfortunately, I don’t even understand this process yet. Could you please explain this in more detail.
Sorry, I’m not really sure what you’re asking now …
There’s what you can do Right Now - which is edit the audio source in your Other Tool Of Choice to pad the duration to whatever you need (and maybe even pre-apply the reverb et al. while you’re there and solve the whole problem in one go). With some combinations of codec/container/tool you might be able to do that losslessly - for others you may need to transcode.
And there’s the pie in the sky “what might be possible in the future” - which is just idle talk and speculation unless someone actually planning to implement it is involved.
And there’s a kludge that the OP noted which is that if you add another clip then effects from the first one can trail on - but that seems more like a side effect of implementation than a Designed Interface, so I personally probably wouldn’t rely on that to keep working the same in all future versions …
And then there’s other trickery you could do purely in kdenlive, like put it in a separate sequence, or pre-render it then re-import it, but that seems a bit like using a hammer to put screws in … you can, but it wouldn’t be my first choice.
Hi @Ron,
I understand you don’t have a trick how to “extend” an audio clip in Kdenlive if there are no quiet passages after the necessary sound.
So I do it as before: I look for quiet passages of this or another clip, cut out a few seconds and then add this directly after the clip that gets reverb. This works great, and the reverb doesn’t stop abruptly.
What doesn’t work is to select a loud passage and make it very quiet, then the reverb would end again immediately and wouldn’t have a soft finish.
If you’re going to go that way, you could just make a silent clip in $AudioEditor and stick it in your clip library. (or find a recording of 4’33"). But as I said, I personally wouldn’t trust that trickery to be future-proof on just what we know today.
If I really had to ‘hack it’ purely in kdenlive for some reason, I’d probably try the ‘put it in a sequence’ extra-layer-of-indirection first. But as a big proponent of Use The Right Tool For The Job - I’d still say do this in a Real Audio Editor™ until some future version of kdenlive gets all the needed functionality from one of those too.
This works, however, I did not intend for the effect to apply to the master track. It should only be applied on the sound effects that I have on a seperate track. Inserting the TAP Reverberator on either the individual sound clips or the track that they are on result in what I described in my OP.
Hallo @Nostalgia_Realm
Yes, you have to insert a quiet sound clip seamlessly. But you can’t take a clip that contains audible sounds and make it quiet, then the effect of the reverberator will also be quiet. Cut out a silent part somewhere in your sound clips and insert it. It works very well for me, but it takes a bit of work.
