Time Difference of Arrival Estimation of Speech Source in a Noisy ...
Time Difference of Arrival Estimation of Speech Source in a Noisy ...
Time Difference of Arrival Estimation of Speech Source in a Noisy ...
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EE049035 – Spr<strong>in</strong>g 2007<br />
Discussion<br />
Work Assumptions:<br />
<strong>Speech</strong> is stationary only <strong>in</strong> short periods <strong>of</strong> time.<br />
Track<strong>in</strong>g objects requires dynamic acoustic impulse<br />
response -<br />
Static acoustic impulse response for short periods <strong>of</strong> time.<br />
Real room acoustic impulse response:<br />
Reverberant environment (long T60)<br />
Long impulse response – takes <strong>in</strong>to account late<br />
reverberations<br />
Us<strong>in</strong>g MTF approx.:<br />
The analysis w<strong>in</strong>dow length (time frame length) is much<br />
larger than the room acoustic impulse response.<br />
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