Several violin tones were digitized and processed by a Fourier analysis computer program and the resulting time‐variant harmonic spectra were stored on digital magnetic tape. The data were plotted according to a number of formats in order to facilitate different interpretations of the data. Sets of graphs of harmonic levels and relative phases versus time were found to be the most useful data presentations for interpretation of transients. It was found that attack and decay rates (in decibels per second) vary considerably from harmonic to harmonic and that vibrato affects both the phase and level curves. The phase‐locked behavior of all partials during the steady state and the inharmonicity of the partials during the attack and decay intervals are clearly visible in the phase graphs. It is believed that the unusually large level and phase fluctuations which appear for certain harmonics in the steady state are due to the presence of strong resonances near their respective frequencies. Three other data presentations were found useful for depicting formant behavior: (1) line spectrum movie, (2) computer printout spectrogram, and (3) superimposed average spectra of many tones.

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