Raimund, may I just add to my previous postings that I never talk
about X-Y, MS or other stereo using cardioids or likewise. I always
favor A-B stereo or binaural stereo using omnis.
I do not want my postings to get mixed up with the controversy about
what you write about stereo and noise.
Klas.
At 17:53 2008-12-31, you wrote:
>Walt, it seems that we have just found another controversial topic
>after a long period of silence ;-)
>
>In my previous posts I forgot to mention another important argument
>against the stereo recording option for common scientific field work:
>
>Imagine, you would use a XY stereo setup instead of a conventional
>single shutgun microphone. It is true that the stereo setup would
>perhaps allow you to isolate different individuals or noise by ear.
>However, the down-side would be that the overall signal-to-noise
>ratio of the stereo recording would be most likely worse than the
>conventional shotgun microphone recording. The narrower receiving
>angle of the shotgun microphone would effectively attenuate
>disturbing noise arriving from other directions, which would not be
>the case for the much wider receiving angle of the stereo microphone.
>
>Scientific work usually involves spectrographic analysis for
>measuring time and frequency parameters, which requires the best
>possible signal-to-noise ratio that you can get. In other words, the
>stereo setup would actually limit the analysis because its background
>noise level is increased compared to the shotgun recording.
>Unfortunately, there is no simple way to extract the spatial
>information of a stereo recording into a spectrogram. Theoretically,
>one could try to use a beam-forming approach, but I'm afraid that
>this wouldn't work very well in practice.
>
>Regards,
>Raimund
>
>
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