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<body class='hmmessage'><div dir='ltr'><div><span style="font-size: 12pt;">Just to clarify,</span></div><span style="font-size: 12pt;">A "chroma feature" is just an spectrogram warped into the 12-semitone ET pitch class space</span><br><div><br></div><div><a href="http://labrosa.ee.columbia.edu/matlab/chroma-ansyn/">http://labrosa.ee.columbia.edu/matlab/chroma-ansyn/</a></div><div><br></div><div>So for each audio frame you get a vector of 12 values. That's useful for chord and tonality recognition.</div><div><br></div><div>By stream based I just meant realtime. Not file-based analysis.</div><div>Josep<br><br><div>> Date: Mon, 3 Jun 2013 17:00:25 +0200<br>> From: zmoelnig@iem.at<br>> To: pd-list@iem.at<br>> Subject: Re: [PD] chroma<br>> <br>> -----BEGIN PGP SIGNED MESSAGE-----<br>> Hash: SHA1<br>> <br>> On 2013-06-03 16:26, Jeppi Jeppi wrote:<br>> > Hi again people,just wonder whether has anyone attempted to<br>> > implement a stream-based chroma descriptor in Pd.<br>> <br>> it would be great if you could clarify your expressions "chroma" and<br>> "stream-based".<br>> <br>> (in Pd we are dealing with loads of totally different "streamed" media<br>> that have "chroma")<br>> <br>> fgmsdr<br>> IOhannes<br>> -----BEGIN PGP SIGNATURE-----<br>> Version: GnuPG v1.4.12 (GNU/Linux)<br>> Comment: Using GnuPG with Icedove - http://www.enigmail.net/<br>> <br>> iEYEARECAAYFAlGsr4YACgkQkX2Xpv6ydvSu+ACgt/RzObVbCsBC10lCCqs2i45c<br>> GGsAoMRYmT227cnhML7p+Aadcwf0vSR9<br>> =iXF5<br>> -----END PGP SIGNATURE-----<br>> <br>> _______________________________________________<br>> Pd-list@iem.at mailing list<br>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list<br></div></div>                                            </div></body>
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