I've just recorded about an hour of audio in Audacity. All the data appears to be there, but unfortunately it's all duplicated -- it seems that blocks of roughly three seconds are repeated, and the recording is twice as long as it should be. So if I was expecting to hear
abc then I've actualy got
All the blocks seem to be the same length, although I've not determined that length yet, and I hypothesise that they must be bit-identical, but I've not checked that either. I'm looking for a way to de-duplicate the audio, leaving me with something I can use.