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.
Source 1 (
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, 62k )
Source 2 (
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, 62k )
2. Linear Mixtures
We mixed the signals on MATLAB using a linear matrix.
x1 = 1.0s1 + 0.7s2
x2 = 0.3s1 + 1.0s2
Mixed Sound 1 (mono,
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, 62k )
Mixed Sound 2 (mono,
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, 62k )
Mixed Sound (stereo,
wav.file
, 123k )
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)
Mixed Sound 1 (mono,
wav.file
, 62k )
Mixed Sound 2 (mono,
wav.file
, 62k )
Mixed Sound (stereo,
wav.file
, 123k )
Shiro Ikeda <shiro@brain.riken.go.jp>
Last modified: Tue Nov 3 17:50:52 JST 1998