For example, even the ill-rhyming flip-flsp has the same edit distance as the correct reduplicative flip-flop.
we use a distance measure (MIR) defined over the phoneme space (Hixon et al., 2011) which effectively captures the similarity of two phonetic sequences by modeling the affinities between pairs of phonemes using a point access mutation matrix and is superior over metrics like PER (phoneme error rate).