[PD] getting cue/loop points from WAV files

[Thomas O Fredericks]

If you are interested, with the sample_id system, the pdmtl abstractions
have a basic 4 cue point system i.e. start,end, loop in, loop out . Once you
load a wav with the sample_id system you can load it many times without the
actual sample(frame) data being reloaded. Since you can save the cuepoints,
you can "reload" the same file with a different set of the 4 cues.
For example, you can have a loop.wav file, that can be loaded as 16
"samples" each one having their different 4 cue points. Even thought in PD,
you have 16 "copies" of the same sample, the actual audio data is only
loaded once.

Tom

On 9/18/07, Hans-Christoph Steiner <hans at eds.org> wrote:
>
>
> Cool, thanks for the info.  I am sure there are a dozen free C
> implementations of this, it's just a matter of getting that into a Pd
> object.  Any volunteers?  :D
>
> .hc
>
> On Sep 18, 2007, at 6:42 AM, hard off wrote:
>
> the workaround i have at the moment is that audacity lets you export cuepoints as a .txt file.
>
> As long as you don't add any labels to your cue points, then that text
> file contains a list of cue point times which you can read directly into
> an array in pd.
>
> in audacity, do the following:
>
> Project -> New Label Track
> select your cue points (Add Label at Selection)
> File -> Export Labels
>
>
>
>
>
>
> however, a pd object to read the cue points from .wav or .aiff files would
> be very useful.  from what i have been reading, all the cue points are
> stored as a single line of data in the header of the file.
>
>
> here's a cue point reader as a supercollider patch:
>
> http://www.create.ucsb.edu/pipermail/sc-users/2006-November/029666.html
>
>
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