PARSHL performs data-reduction on the STFT appropriate for inharmonic, quasi-sinusoidal-sum signals. The goal is to track only the most prominent peaks in the spectrum of the input signal, sampling the amplitude approximately once per period of the lowest frequency in the analysis band. PARSHL will do either additive synthesis or overlap-add synthesis, or both, depending on the application.
An outline of PARSHL appears in §2, and Sections 3 to 8 discuss parameter-selection and algorithmic issues. Section 9 discusses analysis and resynthesis without phase information. Section 10 centers on the preprocessing of the input signal for better analysis/synthesis results. In §11 some applications are mentioned.