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Envelope Collector

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Envelope Collector

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									Figure 1

Onset detector

Pitch Tracker

Pitch to MIDI

Collector

Envelope

Figure 2

Figure 3

Figure 4

Signal Processing

Synthesis

Music signal

Blackboard

Output

Knowledge sources

Figure 5
Neural network chord detector

STFT

Chords Notes
KS KS KS

Partials Tracks

Figure 6

Figure 7

data layer

encoding layer

observed data dj (j =1...J) predicted data rj measurements mk, (k=1..K)

measurement prediction

Figure 8
Input before mixing
(1) Clarinet, C 4 (2) Clarinet, G 4b (3) Clarinet, B 4b (4) Oboe, D 4b (5) Oboe, F 4 (6)Bassoon,D 4 (7)Bassoon,Ab 4 (8) Flute, E 4b (9) Flute, B 4
0 1 2 3 x 10
4

Single Audio Channel
(6) (2)
x 10
4

Activations after learning

(7) (3) (5) (9) (1) (4) (8)

x 10

4

seconds

4

5

6

7

8

9

Figure 9

Mixing matrix A s1 Sources s2 n sources, m=n observations x1 Observations x2 x = As + e noise

Figure 10
(a) (b) (c)

Figure 11.

Convolution mixing A(τ) (matrix of filters A(w)) s1(t) x1(t)

x2(t) s2(t)

Figure 12 (a) (b)

Figure 13 (a)

(b)

(c)


								
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