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Rhythmic Auditory Stimulation System
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Rhythmic Auditory Stimulation System. Gerard Duff 17 th of April 2008. Today's agenda. Project Spec Research Initial Planning MP3 Player Stride Rate Project Summary Questions. Project Spec. Music Therapy is used in neurologic rehabilitation.
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Rhythmic Auditory Stimulation System
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Rhythmic Auditory Stimulation System Gerard Duff 17th of April 2008
Today's agenda • Project Spec • Research • Initial Planning • MP3 Player • Stride Rate • Project Summary • Questions
Project Spec • Music Therapy is used in neurologic rehabilitation. • Studies have shown that the effects of RAS on Parkinson's disease, improves stride length and stride-to-stride variability • Design a pc based music system that will play back music in rhythm to the users ideal stride frequency.
Audio files Find a song with a suitable tempo Hard to find songs Nice to listen to Synthesized music Make up song Easy to change tempo Hard to find nice songs Research
Accelerometer: Used to detect leg movements HyperTerminal: Accelerometer used Bluetooth to connect with pc and send raw data to it. Mp3 Player: User input stride rate and audio file speed was adjusted to match the stride rate. Matlab: Interfaced with HyperTerminal, received raw data values and calculated the stride rate Initial Planning
Main Program • Chose a programming language • Three main functions • Find Stride Rate • MP3 player • Metronome player
MP3 Player • Designing GUI • Ease of use • Display key information • Basic MP3 player capabilities • Add songs • Play, stop, skip • Help Function
Original Tempo • Matlab code • Too many samples required • Mixmeister • Updates id3 tag • Fast
Changing Tempo • Media rate • Can change speed sufficiently without affecting pitch
Metronome • Provide a metronome function for testing • Time constraints on project • Gmans guitar metronome
Stride Rate • communicated with the pc via bluetooth • Interfaced using a HyperTerminal
Calibrating Accelerometer • y and z axis were deactivated • 3.6 g was a sufficient threshold
Using Matlab • Fopen,fprintf, fscanf • MatLab.Execute(“.”)
Project Summary • Overall I completed • mp3 player • metronome • Started accelerometer • Developed a system from scratch using a new language • Future work…