Some useful inexactnesses in speech.
David J. Broad · The Japan Journal of Logopedics and Phoniatrics · 1991
The tension between ideas and facts is characterized as a duality between “something going on”and “something being wrong”. Example 1 is that formants can be estimated by a simple and seemingly absurd linear combination of cepstral coefficients. Example 2 is the apparently simplistic hypothesis that the second equivalent spectral peak F2' is the resonance of the front cavity of the vocal tract.