Can someone send me example files with encoding loop positions? I started with demo soundfile meta data reading/writing but now I need some sample files to work with. I saved a couple via Logic Pro X but the region info is saved as simple markers, not using instrument or sampler chunks.
> On Feb 12, 2020, at 3:48 PM, Ingo <[email protected]> wrote: > > How would loopautitioneer automatically reed the loop points from within Pd > and transfer them? > I can reed the loop points externally with no problem. My problem is to set > the loop points automatically from within Pd. > > Ingo > > From: José de Abreu [mailto:[email protected]] > Sent: Wednesday, February 12, 2020 3:08 PM > To: Giulio Moro > Cc: [email protected]; Ingo; Dan Wilcox; Pd-List > Subject: Re: [PD] Sample loop - start and end point (WAV files) > > hello all, i don't know if it is relevant, but my simple google search > returned this software too: > > http://loopauditioneer.sourceforge.net/ > <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/ > <http://sourceforge.net/projects/loopauditioneer/> by SVN. > > Em qua., 12 de fev. de 2020 às 08:15, Giulio Moro via Pd-list > <[email protected] <mailto:[email protected]>> 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 >> <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 >> > <[email protected] <mailto:[email protected]>> wrote: >> >> >> >> On Wed, Feb 12, 2020 at 10:14 AM Ingo <[email protected] >> >> <mailto:[email protected]>> 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 >> > >> > <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. >> > >> > >> > >> > _______________________________________________ >> > [email protected] <mailto:[email protected]> mailing list >> > UNSUBSCRIBE and account-management -> >> > https://lists.puredata.info/listinfo/pd-list >> > <https://lists.puredata.info/listinfo/pd-list> >> > >> >> >> >> _______________________________________________ >> [email protected] <mailto:[email protected]> mailing list >> UNSUBSCRIBE and account-management -> >> https://lists.puredata.info/listinfo/pd-list >> <https://lists.puredata.info/listinfo/pd-list> -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>
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