[PD] [soundfiler] - get rid of the arbitrary default value for "-maxsize"

Miller Puckette msp at ucsd.edu
Tue May 29 17:09:20 CEST 2018


The original problem was that sometimes allocating lots of memory would slow
the machine to a crawl.  I guess with more modern OSes this isn't necessary
(and anyway people aren't using 32-megabyte machines much anymore) so this
isn't necessary any longer.  I'll go ahead and remove it.

cheers
Miller

On Tue, May 29, 2018 at 12:14:49AM +0200, Christof Ressi wrote:
> I quoted the "16 MB" thing from the source code but you're right that it probably comes from the precision limit.
> 
> > You kinda need to know what you do when exceeding that or the result
> > may have bad sound quality.  
> 
> sure, but this is rather an issue with [tabread4~] (which is addressed in the help patch). I might as well want to play the table with [tabplay~]. or do something completely different with the data. I think [soundfiler] should be agnostic about it.
> 
> btw, Pd extended didn't have this limit and I remember that I was puzzled when I switched to Pd vanilla and my soundfiles would be cut off. the default value isn't even documented. in all this years I've only ever used "-maxsize" to circumvent the default maxsize - which I find quite ironic :-)
> 
> 
> > Gesendet: Montag, 28. Mai 2018 um 23:30 Uhr
> > Von: "Roman Haefeli" <reduzent at gmail.com>
> > An: pd-list at lists.iem.at
> > Betreff: Re: [PD] [soundfiler] - get rid of the arbitrary default value for "-maxsize"
> >
> > On Sat, 2018-05-26 at 16:37 +0200, Christof Ressi wrote:
> > > https://github.com/pure-data/pure-data/pull/366
> > > 
> > > I guess that arbitrary 16MB default maxsize is a relict of past
> > > times... let's get rid of it :-)
> > 
> > You make it sound like the reason for the limit was precious memory. I
> > agree that memory often is not that precious anymore, but the real
> > reason for this limit might have been the fact that you lose precision
> > the higher your index for table lookup is. I guess above 16MB you even
> > can't address every single integer anymore with 32bit float numbers.
> > You kinda need to know what you do when exceeding that or the result
> > may have bad sound quality.  
> > 
> > Roman_______________________________________________
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> 
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