on the localisation in the superimposed soundfield - Hauptmikrofon ...

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3. It has to be ruled out that the suppression of sound colouration can be explained by
means of some kind of an averaging process that the hearing system carries out on
the spectra resulting at the left and right ears. Figure 5 shows the mean values of
these spectra. The resultant fluctuations in the amplitude spectrum would be clearly
detectable.
4. In the case of time-based stereophony, the ear signals’ spectral characteristics are
very different from the ones of a real sound source that, like the phantom source,
moves between 0° and 30°. This is evident from comparing the measurements
shown in Figure 6. This figure displays the spectral modifications that result if
Loudspeaker B is moved from Ω B = 30° to the centre, Ω B = 0°. As the listening test
to be reported in Section 2.2.2 will show, these deviations cause perceivable sound
colouration in the case of monaural listening.
left ear
right ear
Figure 6:
Changes in the ear signals’ spectra as a function of the angle of incidence
Ω B , relative to Ω B = 30°.
5. As for the distance and elevation of the phantom source, one can see from Figure 4
that the auditory system has to interpret the signals as being “linearly distorted”,
because no real sound source can produce such interaural spectral differences. The