What's the meaning of echoprintstring?

[ianstoic]

Hi,

documentation links echoprintstring Track attribute to http://echoprint.me/ but I can't find explanation of what this data is supposed to represent.

How can I decode echoprintstring value to meaningful representation?

Thanks

[ddesroches]

echoprintstring is a fingerprint string for the analyzed audio. It is encoded for efficiency and can be supplied to The Echo Nest song/identify API as is by specifying the "version=4.12" parameter. See The Echo Nest Developer API for more information on song/identify. Echoprint is open source here on Github. Another good reference is this blog post.