A study of automatic transcription of music using a standard PC

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dc.contributor.authorPoon, Victor
dc.date.accessioned2018-11-02T00:43:29Z
dc.date.available2018-11-02T00:43:29Z
dc.date.issued2001
dc.descriptionAdditional content held on disk with print copy in Library.en_US
dc.description.abstractThis thesis describes using a Personal Computer to identify notes that are played by a musical instrument. Several groups have been doing this work with more sophisticated laboratories and equipment with only moderate success. We have found the waves created by musical instruments vary, between instruments, a great deal in their stability and inherent vibration. It was more difficult to identify notes with very low frequencies than those with more central frequencies. We found it was very important to choose the correct starting point for the analysis with Fourier Transform otherwise we would not be analysing the stable stage of the wave. We tried simple strategies to initially reduce the number of computer operations, and memory requirements, with marginal success. We followed with more complex subtraction strategies which were much more successful. The most useful technique involved creating a "calculated percentage multiple" which was almost 100% successful in identifying single notes. For multiple notes we were surprised to find that a group of five different instruments from MIDI were a better source of "known" notes to compare with the "unknown" notes than the MIDI equivalent of the real instrument playing the music. These methods were developed using midi instruments but were verified using a real grand piano. We suggest some further lines of enquiry that may make this technique more successful.en_US
dc.identifier.urihttp://hdl.handle.net/10179/13980
dc.language.isoenen_US
dc.publisherMassey Universityen_US
dc.rightsThe Authoren_US
dc.subjectMusicen_US
dc.subjectData processingen_US
dc.subjectRecording reproducingen_US
dc.subjectMathematicsen_US
dc.subjectFourier analysisen_US
dc.subjectAcoustics and physicsen_US
dc.titleA study of automatic transcription of music using a standard PCen_US
dc.typeThesisen_US
massey.contributor.authorPoon, Victor
thesis.degree.grantorMassey Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M. Sc.)en_US
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