Difference between revisions of "Mozart's Right Hand"

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=Theory of Operation=
=Theory of Operation=
Mozart's right hand plays all of the notes, including sharps and flats, between and including C5 and C7 (where C4 is "Middle C"). Each of these notes has a specific frequency associate with it; for example: C6 has a frequency of 1046.50 Hz. Other notes' frequencies are available at [http://www.phy.mtu.edu/~suits/notefreqs.html http://www.phy.mtu.edu/~suits/notefreqs.html]. If signal whose voltage is a 1046.50 Hz sine wave is passed through a speaker, the speaker will play C6. Increasing the frequency will raise the pitch, decreasing it will lower the pitch. Increasing the amplitude will cause the volume of the note to go up, decreasing it will cause the volume to go down.

==Orientation of the Hand Relative to Gravity==
==Orientation of the Hand Relative to Gravity==
==Effect of Centripetal Acceleration==
==Effect of Centripetal Acceleration==

=Hardware=
=Hardware=
==Glove==
==Glove==

Revision as of 15:00, 17 March 2009

Introduction

The Project

Mozart's Right Hand is a musical instrument capable of playing two full octaves of the Diatonic Scale. The user wears a glove on his or her right hand and uses motions of the hand and fingers to create different notes. The pitch of the tone is controlled by the orientation of the user's hand. The LCD on the front of the box tells the user the pitch that corresponds to his or her current hand orientation. When the user touches together his thumb and index finger, the speaker plays the tone. A video of Mozart's Right Hand in action is available on YouTube.

Mozart's Right Hand box
Mozart's Right Hand in action




























The Team

Design Team (Just Sean for now ...)
  • Colleen Fryer ( colleenfryer2008 at u dot northwestern dot edu ), Mechanical Engineering Graduate Student
  • Sean Wood ( seanwood2010 at u dot northwestern dot edu ), Mechanical Engineering Junior
  • Mat Kotowsky (kotowsky at northwestern dot edu), Civil Engineering Graduate Student













Theory of Operation

Mozart's right hand plays all of the notes, including sharps and flats, between and including C5 and C7 (where C4 is "Middle C"). Each of these notes has a specific frequency associate with it; for example: C6 has a frequency of 1046.50 Hz. Other notes' frequencies are available at http://www.phy.mtu.edu/~suits/notefreqs.html. If signal whose voltage is a 1046.50 Hz sine wave is passed through a speaker, the speaker will play C6. Increasing the frequency will raise the pitch, decreasing it will lower the pitch. Increasing the amplitude will cause the volume of the note to go up, decreasing it will cause the volume to go down.

Orientation of the Hand Relative to Gravity

Effect of Centripetal Acceleration

Hardware

Glove

Accelermoeter

Play Enable

Desktop Box

Microcontroller

Function Generator

Amplifier and Speaker

LCD

Enclosure

Software

Reading the Accelerometer

Selecting a Note

Playing a Note

Further Reading