<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Howdy all,<div class=""><br class=""></div><div class="">I am working on the 3rd iteration of a long term project we use for sound spatialization at ZKM. The current sound server was built using Pd and runs internally using libpd.</div><div class=""><br class=""></div><div class="">We have many older projects which use CAF (Core Audio File) audio files (.caf or .caff) and I would need to be able to read them with Pd. I could find or make an external just for this file format, but I was thinking it could be generally useful to have this supported by [soundfiler], et al directly.</div><div class=""><br class=""></div><div class="">CAF specification: <a href="https://developer.apple.com/library/archive/documentation/MusicAudio/Reference/CAFSpec/CAF_spec/CAF_spec.html" class="">https://developer.apple.com/library/archive/documentation/MusicAudio/Reference/CAFSpec/CAF_spec/CAF_spec.html</a></div><div class=""><br class=""></div><div class="">The format is basically a container that takes different data formats, one being LPCM as in WAV & AIFF. We could post an error and ignore any compressed files. As the file structure is similar to WAV & AIFF, it seems like it wouldn't be too much work to add uncompressed CAF support to Pd and would work conceptually in the same manner.</div><div class=""><br class=""></div><div class="">CAF files offer a couple of advantages:</div><div class=""><br class=""></div><div class="">* 64-bit offsets for nigh-unrestricted durations (so file sizes > 4 GB)</div><div class="">* recording could be faster as it allows for appending data</div><div class="">* open format that is supported outside of macOS/iOS</div><div class=""><br class=""></div><div class=""><div class="">
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