Clipstrum Pitch Determination
A. Michael Noll · The Journal of the Acoustical Society of America · 1968
A new method of pitch determination similar to the cepstrum except that both the time signal and the log power spectrum are infinitely peak clipped before spectrum analysis has been simulated on a digital computer. Although this new method itself, called the “clipstrum,” is inferior to cepstrum pitch determination, the clipstrum of center-clipped speech performs surprisingly well and sometimes is superior to the cepstrum. The clipping in the clipstrum might offer some advantages over cepstrum analysis in certain digital hardware implementations since multiplications could be replaced with additions or subtractions.