Hi Roman, Indeed DC...
It was an oscillator with uninitialized frequency and its own dac that I put in a sub-patch to get reference pitches and forgot about it completely. thanks, J On Tue, Jun 28, 2011 at 5:59 AM, Roman Haefeli <reduz...@gmail.com> wrote: > Hi Jamie > > Am I right in thinking, that you get this click even while all your > audio modules are silent? At least, that is what the click.wav file > suggests. > > I assume there are two things involved that cause the clicking: > > * When doing "a lot" within 0 logical time, you'll get audio drop outs, > because the computer is not fast enough doing the requested task in the > defined time frame (which is: your buffer size). This often happens > while loading or saving presets. > > * It seems one or more of your audio modules contain a bit of DC > ('direct current' or constant) in their signal. Make sure to avoid that > whenever possible, since DC decreases the dynamic range available and > makes your amps and speakers consume a lot of energy without any > benefit. > > Now, if you really have a certain amount of DC going to your [dac~] and > there is a drop-out (see reasons above), this will be audible, because > during the drop-out the signal switches to 0 and after the drop-out back > to the DC level. I think that is the reason for your clicks. > > For a quick test, you could put a [hip~ 5] right before the [dac~] and > check if the clicking still occurs. A high-pass filter will remove any > DC components from the signal, but the better solution would be not to > generate a DC in the first place. > > Roman > > > > On Tue, 2011-06-28 at 04:00 -0700, Jaime Oliver wrote: >> Hi all, >> >> I have two patches. >> One is my "stable" version and the other is the "development" one. >> They are similar, but I've made many changes. >> >> However, this development version now makes this click sound (attached >> or in www.jaimeoliver.pe/misc/click.zip) >> The click happens when editing, saving or sending control messages to >> the audio modules. Deleting the audio modules eliminates the problem, >> but I need those. >> >> Anyone has any idea where to look for possible problems? >> >> best, >> >> J >> >> _______________________________________________ >> Pd-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list > > > -- Jaime E Oliver LR www.jaimeoliver.pe 858 750 0924 (cel) 858 202 1522 (home) _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list