CSDT Work Monday 6/13 - Sunday 6/19

Tuesday 6/14 9:15am-12:00pm, 1:45pm-3:30pm, 8:00-8:30pm:

• Continued comparison of methods for computing instantaneous pitch of music file
• Took notes on David Gerhart report (This is the report.)  
• Compared time- and frequency- domain approaches, and various specific algorithms 

Wednesday 6/15: 1:15-2:45pm, 8:00-9:15pm:

• Read through report by UPF Music Technology group on melody extraction contest
• Found toolbox for audio analysis
• Includes pitch and salience extraction, segmentation, and many other features
• Will try implementing in MATLAB

Thursday 6/16: 8:15am-1:00pm, 2:30pm-3:45pm:

• Used audio analysis toolbox to compute pitch waveform for several audio samples using autocorrelation
• Experimenting with methods of smoothing or possibly quantizing pitch waveform

Friday 6/17: 12:30pm-2:00pm:

• Attempted to verify MATLAB script I am using to compute power series
• Ran power series analysis for noise generated with MATLAB algorithm 
• Tested 1/f^alpha for 15 values of alpha from 0 to 3.5
• MATLAB script returned alpha values that were consistently 
• 17% off for 1 sec samples
• 31% off for 2 sec samples
• about 40% off for 3 sec samples
• Will test another noise generator and possibly another method of computing power series