>Hi,
> Seems likely then that the problem is related to the usual "in
>head" problem that many (maybe even most) people people have with
>simple, non matched HRTF based systems, whether driven from decoded
>Ambisonic signals or from binaurally recorded (dummy head) material.
>There's been a lot of work on this (just search the AES library, for
>instance) and there have been many suggestions for solving this but,
>in my opinion, the only one which has anything like a chance for
>solving the problem for the majority of listeners is to add head
>tracking to the system. This is because if the soundscape stays locked
>to the reference frame of your head (as happens without head
>tracking), it is _very_ difficult to convince your perceptions that it
>is anything but in your head and therefore locking the soundscape to
>the external fixed reference plane by using headtracking instead makes
>it much more natural to perceive it as external. This is even more
>important even than having HRTF's that are the same as, or closely
>matched to, your own (though such individualised responses do help).
>Strong visual cues can also help and in some cases will be almost as
>good at moving the perceived reference frame to the external world as
>you get with headtracking - though this is _very_ dependent on the
>particular circumstances.
Thanks very much. You are so kind. I will have a try as your suggestion.
Best regards,
Rilin Chen
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