Investigating Sound

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Investigating Sound
Building A Better Cello

• Prof. Jerry Breecher
• Fall 2006

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Building A Better Cello
Trill
Slur
3 simultaneous notes
Repeat
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Building A Better Cello
sr 44100 kr 4410 ksmps 10 nchnls
1 instr 101 a1 oscil 10000, p4, 1
out a1 endin instr 102 a1
oscil 10000, p5, 1 out
a1 endin instr 103 a1 oscil 10000, p6,
1 out a1 endin

• Test code
• Produces four segments
• Freq 200
• Freq 700
• Freq 1123
• Freq 200 700 1123

Function 1 uses the GEN10 subroutine to compute
a sine wave f 1 0 4096 10 1
inst start duration i 101 00.2 200 700
1123 i 102 0.2 0.2 200 700 1123 i
103 0.4 0.2 200 700 1123 i 101 0.6
0.6 200 700 1123 i 102 0.6 0.6 200
700 1123 i 103 0.6 0.6 200 700 1123
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Building A Better Cello
Java FFT 2 test.wav 0 4096 12 1
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Building A Better Cello
Java FFT 2 Ma_Suite1.5-3notes.wav 0 1024 50 1
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Building A Better Cello
Analysis of the 3 fundamental notes in the file