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dc.contributor.advisorDemetry, James S.
dc.contributor.authorHagee, Michael William
dc.dateJune 1969
dc.date.accessioned2012-08-29T23:32:13Z
dc.date.available2012-08-29T23:32:13Z
dc.date.issued1969-06
dc.identifier.urihttp://hdl.handle.net/10945/12359
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractA 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 discusseden_US
dc.description.urihttp://www.archive.org/details/integratedcircui00hage
dc.format.extent96 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. U.S. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.subject.lcshDigital filters (Mathematics)en_US
dc.titleAn integrated-circuit piano tuner for the equal-tempered keyboard employing a tuneable fixed-coefficient digital filteren_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentElectrical Engineering
dc.subject.authorDigital filtering
dc.subject.authorTunable digital filtering
dc.subject.authorFrequency deviation detector and counter
dc.subject.authorEqual-tempered keyboard tuner
dc.description.recognitionNPS Hall of Fame author (Presented May 23, 2009)en_US
dc.description.serviceSecond Lieutenant, United States Marine Corps
etd.thesisdegree.nameMaster of Science in Electrical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineElectrical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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