Music training apparatus
December 6, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3876936 3919913 Device for visually displaying the auditory content of the human voice Aural pitch recognition teaching device Automatic ear training apparatus Conversion of acoustic signals into visual signals Keyboard instrument teaching device Pitch analyzer Display device Apparatus for drilling pronunciation InventorApplicationNo. 803035 filed on 12/06/1991US Classes:84/477R, Indicators84/454Tuning devicesExaminersPrimary: Gellner, Michael L.Assistant: Stanzione, P. International ClassG09B 015/02AbstractAn apparatus to assist the musical instruction of a student including one or more tone sources (e.g., flute, human voice, violin) playing monophonically as inputs, means to quantify aural parameters of pitch, amplitude, duration, and timbre of inputs, means to visually store and represent temporal history of said, means to store and playback audio signal of inputs, and means to arrive at and display musical related pitches. A waveform analyzer is used to control a tunable low-pass filter in the pitch tracker and preform spectral estimation of timbre. Pre-recorded music instruction and a karaoke player are used as examples of reference tone sources. Visual representation of aural parameters can provided as video output.Other References
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