Description on the Signals Mixed on Computer


1. Original Sources

We recorded the signals on DEC Alpha station 200 with 16kHz sampling rate. The followings are the orignal sources.

2. Linear Mixtures

We mixed the signals on MATLAB using a linear matrix.
x1 = 1.0s1 + 0.7s2
x2 = 0.3s1 + 1.0s2

3. Convoluted Mixtures

We made convoluted mixture with MATLAB.
x1 = H11*s1 + H12*s2
x2 = H21*s1 + H22*s2
Here, * stands for the convolution, and each coefficients are,
H11 = (0.1781, 0.7044)
H12 = (0.4342 -0.2605)
H21 = (0, 0.2641, -0.5283)
H22 = (0, -0.1824, -0.4342. 0.6252, 0.3126, 0.1824)

Shiro Ikeda <shiro@brain.riken.go.jp>
Last modified: Tue Nov 3 17:50:52 JST 1998