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.• 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.
Research
• 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
Initial Planning
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
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
Changing Tempo
• Media rate• Can change speed
sufficiently without affecting pitch
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
slow normal fast
Metronome
• Provide a metronome function for testing
• Time constraints on project
• Gmans guitar metronome
Project Summary
• Overall I completed– mp3 player– metronome– Started accelerometer
• Developed a system from scratch using a new language
• Future work…