[Ardour-Dev] Fwd: Re: "Click of deaf" bug
Natanael Olaiz
nolaiz at gmail.com
Fri Jul 16 06:26:24 PDT 2010
> -------- Original Message --------
> Subject: Re: [Ardour-Dev] "Click of deaf" bug
> Date: Fri, 16 Jul 2010 14:38:43 +0200
> From: Christian Zollner <osterchrisi at gmx.at>
> To: Natanael Olaiz <nolaiz at gmail.com>
>
>
>
> Same happened to me a few times lately...
> I wasn't able to reproduce it in any way but I had the feeling it
> happens whenever you split a region, move the second one to another
> track without applying any changes to it and later putting it back to
> its original position.
>
>
BTW, I remember now: in my case the regions was two different audio
files, not splitted...
> When I have more time next week I could try to reproduce it...
>
> Best,
> chrisi
>
>
>
>
> Am Freitag, den 16.07.2010, 10:55 +0200 schrieb Natanael Olaiz:
> > Hi,
> >
> > We found a strange and harmful bug in Ardour, and unfortunately, it
> > looks difficult to reproduce.
> >
> > Description: two regions are one just after the other (so, no crossfade)
> > makes a several hundred dBs click when the playhead pass over the
> > intersection:http://imagebin.ca/view/LSvEnz.html
> >
> > Some observations:
> > - It happens even without any plugin or automation on the track
> > - If the gain of the track is 0, it doesn't happens. If it's
> > greater, the bug happens and it looks proportional to the track gain.
> > - Related to the previous?: when there is a plugin applied, the
> > gain bug is happening after the plugin process (1 mono track with 22
> > outputs without plugin: all peaks fall -after several seconds- all
> > together, meanwhile 1 mono track with 22 outputs with a spacialization
> > plugin applied: the peaks fall differently because the process)
> > - It looks to happen only when the starting region have the fade-in
> > deactivated (no matter the state of the previous ending fade-out).
> > - When reloading the session, it doesn't happen. But if you move
> > the second region some times, and put it again snapped to the first one,
> > it usually happens again each time you pass over the region intersection
> > until you close the session again.
> >
> > We tried to simplify the session removing all the tracks but the
> > problematic one, and still happens. Then we tried to remove clean the
> > unused sources and move the regions to the begining, and we could not
> > reproduce it again...
> >
> >
> > Any hint to debug it? Maybe a NaN in the fade-in algorithm?
> >
> >
> > Thanks in advance.
> >
> > Best regards,
> > Natanael.
> >
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>
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