var fs = require('fs');
var ogg = require('ogg');
var vorbis = require('vorbis');
var file = __dirname + '/Hydrate-Kenny_Beltrey.ogg';

var od = new ogg.Decoder();
od.on('stream', function (stream) {
  var vd = new vorbis.Decoder(stream);

  // the "format" event contains the raw PCM format
  vd.on('format', function (format) {
    // send the raw PCM data to stdout
    vd.pipe(process.stdout);
  });

  // an "error" event will get emitted if the stream is not a Vorbis stream
  // (i.e. it could be a Theora video stream instead)
  vd.on('error', function (err) {
    // maybe try another decoder...
  });
});

fs.createReadStream(file).pipe(od);