<div class="description">
<dl><dd>Bibliography: p. 90-94</dd>
<dd>Thesis advisor: James S. Demetry</dd>
<dd>Thesis (M.S. in E.E.)--Naval Postgraduate School, 1969</dd>
<dd>A study of the physics of the piano reveals that while the upper partials of the steel strings are the eigen-frequencies of the complex tone, they are not integer multiples of the respective fundamentals. To properly measure and tune these eigen-partials, a digital filter capable of sweeping a major portion of the audio-frequency spectrum had to be implemented. Such a filter, a tuneable fixed-coefficient digital filter, is discussed as well as a simple pole-zero design procedure for determining the required coefficients. Each module, including the frequency deviation detector and counter, the time-base generator, the digital filter, the reference frequency generator and the display and control module, of the proposed tuner is illustrated and discussed</dd>
<dd>Mode of access: World Wide Web</dd>
<dd>System requirements: Adobe Acrobat reader</dd>
<dd>Record updated 02/14/05. PA</dd></dl><br>Subjects: Digital filters (Mathematics); Electric filters, Digital; Integrated circuits</div>
<div class="fn value">
Hagee, Michael William</div>
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