Raimund Specht wrote:
> However, other common stereo techniques such as XY, AB, ORTF or any of
> the head-based or baffled set-ups can introduce unwanted artifacts.
> Among the potential problems are comb filter effects or simply the
> fact that none of the two microphones are pointing exactly at the
> sound source. Due to physical limitations, there is no microphone that
> exhibits a perfect omnidirectional pick-up pattern for all signal
> frequencies. At least at frequencies above 10 kHz, the frequency
> response is no longer flat for off-axis sounds, which means that high
> frequency components will NOT be recorded properly.
If this is a concern, as long as one of the mics in any of those
stereo configurations is on-axis to the subject, that channel could be
used for mono applications if needed - and the other channel for
spacial support. In which case the problems as you describe would not
be an issue.
John Hartog
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