31Hz
63Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
Virtual cardioid microphones of
3°
order
Software EigenmikeTM (HOA)
Novel approach
Ø Better frequency response
Ø Better directivity control at low frequency
Ø Upper frequency limit again limited by
spatial aliasing, now it reaches 10 kHz
In any
case, the novel approach is always better than traditional HOA
Comparison with H.O.A.