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October 27, 2004

Improving Podcast Metadata

The issue of podcast metadata has come up several times on various podcasts, including Adam's. One thing I've been thinking about inplementing when/if there a Cygweb podcast is to have an Ogg Vorbis version of the podcast that would utilize the ability to concatenate multiple Vorbis streams (each with their own metadata) into a single Ogg file. The streams would correspond with the different "segments" of the recording. I have a method for doing this that Don used for his ICYG show "Up The Downstair" and it worked great. Here's what you do (on Windows):

  1. Record and mix a complete show, outputting it as a WAV file.
  2. Break up the WAV file into smaller WAVs that correspond to the different regions you want to tag (i.e. segments, songs, ads).
  3. Individually encode the smaller WAVs as OGGs and tag them.
  4. Concatenate the OGGs in order using the command:
    copy /b source1.ogg + source2.ogg + ... + sourceN.ogg destination.ogg

In Foobar2000, the one file shows up as multiple lines on the playlist, one per Vorbis track, so that might be kind of confusing. Of course, Vorbis files won't play on most portable players right now, so I wouldn't expect this to be the most popular podcasting solution. But it would probably be the most open format with the most metadata.