On Nov 18, 2015, at 16:53 30, Robert Jeffares <[email protected]> wrote:
> The first step to sanity is to avoid sourcing from mp3's. Most music started > out on CD or an analogue format you can import as a wav file. Establish > maintain and encourage a culture of sourcing "uncompressed" data. Preach it, Bro! > However there is a vast amount of programming available only as mp3. Some of > the junkiest is material supplied to stations by record companies! Sad, and all too true. > I never figured out which tag RDIMPORT looked at and it was just as fast to > do both. The mapping is (from ‘lib/rdwavefile.cpp’): ID3FID_TITLE => Cart Title ID3FID_BPM => Cut Beats per Minute ID3FID_ALBUM => Cart Album ID3FID_COMPOSER => Cart Composer ID3FID_ORIGARTIST => Cart Artist (if no ID3FID_LEADARTIST field is found) ID3FID_LEADARTIST => Cart Artist ID3FID_PUBLISHER => Cart Publisher ID3FID_ISRC => Cut ISRC ID3FID_YEAR => Cart Year ID3 was really created as a metadata format for consumer audio, and it shows. It has a number of fields for things like song lyrics that are basically useless for radio, while missing things such as fields for start/kill dates/times. This of course assumes that the upstream provider has actually populated the fields accurately, which (as Robert has pointed out) can be extremely problematic in its own right. Other metadata formats (such as CartChunk) address the need for some radio-specific data, but don’t offer a particularly rich set of other fields beyond basic Title and Artist while also being limited to use with the WAV container format only. For “traditional” radio operators that is often enough, but pure online operators will often need more; with royalty authorities in most jurisdictions needing at least Title, Artist, Album Title and Record Label (or sometimes, ISRC in lieu of the four). ISRC is a whole other can of worms Cheers! |----------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Chief Developer | | | Paravel Systems | |----------------------------------------------------------------------| | A room without books is like a body without a soul. | | -- Cicero | |----------------------------------------------------------------------| _______________________________________________ Rivendell-dev mailing list [email protected] http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
