[PD] audio dropouts when loading samples

[TimBlechmann at gmx.net]

> > as far as i could follow your conversation, readsf~ seams to be a
> > threaded soundfiler.
> >
> > but: doesn't readsf~ play back and soundfiler write sounds into
> > buffers? i don't know much about the source code of these two objects,
> > but to me they seem to be quite different objects.
> > ...well, i hope that i am wrong :-)
> 
> Your're not wrong. soundfiler loads files into arrays (and thus has to
> read soundfiles
> faster than realtime), readsf~ plays soundfiles in realtime (and is
> threaded, whereas
> soundfiler [in the 'normal' pd version] is not).
> 
> The fact that an 'ideal' soundfiler would write a complete file in no time
> into an
> array makes it so difficult to code. In pd every action performed by an
> external (that
> is not threaded) has to fit into one dsp cycle (i.e. usually 64 samples =
> the
> blocksize). Reading a soundfile usually takes longer, that's where the
> dropouts come
> from. And the longer the file the longer the dropouts...,

well, what about reading the data to a temporary array that is completely
independant from the pd dsp process and when the complete file has been read,
it is copied to the destination array. would that be a possible way?

tim

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