[Ardour-Users] A3: 225 dB audio spike caused by automation point
polo at citadelrock.fr
Mon Mar 18 11:25:52 PDT 2013
Le 18/03/2013 18:57, Q a écrit :
> A noticeable click has started appearing, sometimes, at a particular
> point in the A3 session I'm currently working on. The click is causing
> the master channel to register 225 dB at that point.
> I've managed to get it to reliably produce the spike. For simplicity's
> sake, there are three position markers: mark 2 occurs four bars after
> mark 1; mark 3 occurs four bars after mark 2 and the spike occurs near
> the end of the bar at which mark 3 is at the beginning. If I play from
> marks 2 or 3, no spike. If I play from mark 1, the spike occurs in the
> mark 3 bar. If I play from slightly after mark 1, no spike.
> I checked all the active tracks and none of their meters register a
> similarly high output. I have tracked the spike down to an automation
> One track (no plugins inserted), has the pan width automated from the
> beginning of the mark 3 bar to near the end of the bar. The automation
> consists of a single line defined by two points -- the audio spike
> exactly coincides with the second point. Muting the track or
> de-activating the automation stops the spike from occurring.
> I don't know whether it's of relevance, but the end automation point
> is set at 0.90 (hovering over the point on the timeline), but the
> width slider says Width 89%.
> Ardour-Users mailing list
> ardour-users at lists.ardour.org
Hi, I already had the same issue, but it was due to a very close second
point (invisible unless you zoom alot). In a general manner, I noticed
that ardour doesn't like the "too-much close-togethe"r automation
points, and some mega clicks appear.
I suggest you to delete (or move) the point that causes the click, and
see if there is not another point behind :)
Polosson, ingénieur du son et web-développeur <http://www.polosson.com>
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