Estimated ITDs match theoretical values especially at low frequencies
Evidence
The normalized cross-correlation function is plotted for each frequency channel. The plotting shows that the functions are tuned to a certain time lag, which corresponds to the ITD between the ear canal signals. In this case, the source was in the direction 30◦azimuth, and the maximum value of the IACC depends relatively strongly on the frequency content in the interval between 0.2 ms and 0.5 ms. The value from the theoretical broadband curve shown in Figure 12.9 matches with the IACC-based estimate at 700 Hz. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1667
Categorization
- XREF: connects to: ITD spans 0-700 microseconds across azimuth independent of frequency — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1429; Rayleigh’s duplex theory links ILDs to high and ITDs to low frequencies