> > Also, do mic vendors offer files with the frequency response of the mic
> > so one can "multiply the inverse of it" with the spectrum of the
> > signal recorded with said mic, taking mic charateristics out of the
> > equation (at least theoretically)?
>
> The high quality ones will have tight specs and usually come with
> a measured FR or other calibration data.
>
> There are a few other points to consider.
>
> Most speakers will be directional at all but the lowest frequencies.
> It depends on your application if this matters or not. If it does
> (e.g. to measure room acoustics according to international standards)
> you need an omnidirectional speaker. These are usually made as a
> dodecahedron of small speakers. See
> for an example.
>
> Also omni mics will have some directionality at high frequencies, and
> that is why they come in two forms: calibrated for flat FR on-axis
> (plane wave), or for flat FR in a diffuse field (averaged over all
> directions). The difference matters only at very high frequencies.
> Some measurement come with a small conical diffuser which can be
> attached in front to improve diffuse-field response.
>
> Ciao,
>
> --
> FA
>
> There are three of them, and Alleline.
>
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