On Sun, Jan 30, 2011 at 06:55:18PM +0100, Hartmut Noack wrote:
> Am 30.01.2011 13:22, schrieb Arnold Krille:
> >Using a mobile phone to play the sinus-sweep
A research assistant here did that last year - recorded his acoustic
measurement sweeps in mp3 format. Had to go back and do it all over
again... Whatever remains of a sweep after deconvolution is just junk.
As to the LF, many small devices such as mobile phones generate bass
by just exciting the miniature speaker at its resonance frequency.
Works well for kick drums etc. You get bass indeed, but nothing like
the original signal.
There are three of them, and Alleline.
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