[PD] Sample loop - start and end point (WAV files)

[José de Abreu]

hello all, i don't know if it is relevant, but my simple google search
returned this software too:

http://loopauditioneer.sourceforge.net/

LoopAuditioneer is a software for evaluating, creating and manipulating
loops and cues existing in wav file metadata. It's envisionaged to be
useful for sample production for virtual pipe organs, like for instance
GrandOrgue <http://sourceforge.net/projects/ourorgan/> software.

SOURCE CODE:
------------

Is available on http://sourceforge.net/projects/loopauditioneer/ by SVN.

Em qua., 12 de fev. de 2020 às 08:15, Giulio Moro via Pd-list <
pd-list at lists.iem.at> escreveu:

> libsndfile also can extract loop points from a variety of formats. The
> relevant code for wav is here
> https://github.com/erikd/libsndfile/blob/master/src/wav.c#L1140-L1163
>
> Kjetil Matheussen wrote:
> > On Wed, Feb 12, 2020 at 10:56 AM Kjetil Matheussen
> > <k.s.matheussen at gmail.com> wrote:
> >>
> >> On Wed, Feb 12, 2020 at 10:14 AM Ingo <ingo at miamiwave.com> wrote:
> >>>
> >>> Thanks, Dan!
> >>>
> >>>
> >>>
> >>> They must be embedded in the "Marker Chunk" in AIFF and in the "Cue
> Point Chunk" in the WAV format.
> >>>
> >>> This gives me a further idea for searching on.
> >>>
> >>>
> >>
> >> Yes, loops are usually defined as "Loop Start" and "Loop End" cues,
> >
> > Hmm, or maybe they are usually defined in the "smpl" chunk, I don't
> remember...
> >
> > But here's the code to get loop data from a wav file in radium:
> >
> https://github.com/kmatheussen/radium/blob/master/audio/Sampler_plugin_wav_parse.c#L253
> >
> > First it checks if there is a loop in the "smpl" chunk. If there isn't
> > loop data there, it checks for "Loop Start" and "Loop End" cues.
> >
> >
> >
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