Hello Bernhard, I just came on line to correct my previous post and found your reply. Thanks. I whipped out that post last evening after just reading a book on guitar making where it was stated that a 3 Db increase represented a doubling in loudness. I began to wonder myself afterwards and, having checked with Benande, found that c. 6 Dbs correspond to a doubling as you say. Apologies to all for the error. Thanks for clarifying the matter. Regards, Robin Hufford Bernhard Stopper wrote: > Definitvely not, Robin. > there is often confusion with the 3 dB, because 2 added Audio Signals with > the same dB level will result in a 3 dB higher level. But two same siganls > do not result in doubling of loudness, a fact that was already known by the > organ makers. Also 2 strings do not sound as double as one, it raise only ~ > to1.3 of loudness level. Sometimes you find tables where 10 dB is double > loudness, that is due to a investigation in the fifties done by Stephens. > In later investigations (Warren, 1970) has been found that loudness doubling > is about the 6 dB. But this is also somewhat frequency dependent. > more info at: > http://www.personal.rdg.ac.uk/~syswatkn/ap3.pdf > > Regards, > > Bernhard > > ----- Original Message ----- > From: "Robin Hufford" <hufford1@airmail.net> > To: "Pianotech" <pianotech@ptg.org> > Sent: Wednesday, January 14, 2004 9:43 AM > Subject: Re: Software questions MiniMens > > > Actually, I believe 3 Db is about a doubling of "loudness". 3 is a > > doubling plus 3 more makes a quadrupling plus 3 more makes eightfold at > > 9 Db. Then 1.5 Db makes approximately tenfold or an order of magnitude. > > > > Regards, Robin Hufford > > > > Bernhard Stopper wrote: > > > > > Part 1.1 Type: Plain Text (text/plain) > > > Encoding: quoted-printable > > > > _______________________________________________ > > pianotech list info: https://www.moypiano.com/resources/#archives > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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