[PD] How to scratch large sound file ?

[Christof Ressi]

ah, I see. you probably mean the "soundfiler_read: truncated to 4000000 elements" message in the Pd console. use the "-maxsize" flag to increase the maximum number of samples. on 64-bit Pd there's practically no limitation. with 32-bit you are limited to about 500 000 000 samples (~3 hours of mono audio)

> Gesendet: Freitag, 21. April 2017 um 22:51 Uhr
> Von: "Christof Ressi" <christof.ressi at gmx.at>
> An: "Antoine Villeret" <antoine.villeret at gmail.com>
> Cc: Pd-List <pd-list at lists.iem.at>
> Betreff: Re: [PD] How to scratch large sound file ?
>
> > but how to fill a table with a sound with more than 4000000 samples ?
> 
> what is the problem with that?
> 
> > also I need high fidelity playback at nominal speed.
> 
> Miller's varispeed example does achieve that. it uses the right inlet of [tabread4~] to prevent loss of precision. 
>  
>  
> 
> Gesendet: Freitag, 21. April 2017 um 22:45 Uhr
> Von: "Antoine Villeret" <antoine.villeret at gmail.com>
> An: David <dfkettle at gmail.com>
> Cc: Pd-List <pd-list at lists.iem.at>
> Betreff: Re: [PD] How to scratch large sound file ?
> 
> Thanks for the hint, 
>  
> but how to fill a table with a sound with more than 4000000 samples ?
> is there a direct-from-disk solution for that ?
> also I need high fidelity playback at nominal speed.
>  
> Thanks 
>  
> Antoine
>  
> 
> --
> do it yourself                      
> http://antoine.villeret.free.fr 
> 2017-04-21 22:38 GMT+02:00 David <dfkettle at gmail.com[mailto:dfkettle at gmail.com]>:
> 
> Which one? 
>  It's supposed to be possible with tabread4~, by using the onset inlet.
> There's an example in one of the help files. I looked at it a year ago and
> it was incomprehensible. YMMV.
> 
> If you figure it out, please post a simple example patch. This is my
> greatest joy-killer in Pd, because I really want to work with audio files
> which may be 1-2 hrs long.
> 
> On Friday, April 21, 2017, Antoine Villeret <antoine.villeret at gmail.com[mailto:antoine.villeret at gmail.com]>
> wrote:
> 
> > Hi,
> >
> > I'm looking for the best practice to scratch (change playback speed
> > quickly) large sound file.
> >
> > I've already tried :
> > - table and tabread4~ but table length is too limited
> > - readsf~ : can't change playback speed easily (I didn't try resampling
> > with block~ yet)
> > - august/readanysf~ : seems pretty great but can't play backward, it also
> > has a great feature : the return
> > - moonlib/sfread2~ : works with both positive and negative speed but only
> > with 16bit audio file and quite buggy (strange output when it can't find
> > file)
> > - moonlib/readsfv~ : works only with positive speed
> >
> > Does someone know how to play large sound file with playback speed control
> > (positive and negative) ?
> >
> > Thanks
> >
> > Antoine
> > --
> > do it yourself
> > http://antoine.villeret.free.fr[http://antoine.villeret.free.fr]
> >
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