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#2120690 - 07/20/13 08:06 PM A little light reading (or time for a SuperMODEL)
voxpops Offline
2000 Post Club Member

Registered: 03/20/07
Posts: 2918
Loc: Oregon
I was messing about checking the decay time of my FP-50 (around 30secs max.) and noticed that it decays in two phases, with a fairly rapid initial drop followed by a longer phase in which the harmonics are more to the fore. This seemed to be a fairly good emulation of real acoustic behavior (from memory), and so I went looking for some reference material to provide more insight. I stumbled across this paper. It provides a fascinating analysis of what is going on inside the piano during the creation and dissolution of the sound. (Chapter 5 relates to my initial interest concerning sound decay). I haven't read the whole article yet, but I think a lot of forum members curious about the mechanics and science involved will find it interesting.

Turning to modeled sound, specifically, this Master's thesis may be a good companion paper, and here is a collection of published documents on the subject (not all seem to be available).

Beats counting sheep! wink

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#2120759 - 07/20/13 10:12 PM Re: A little light reading (or time for a SuperMODEL) [Re: voxpops]
Charles Cohen Offline
500 Post Club Member

Registered: 12/26/12
Posts: 942
Loc: Richmond, BC, Canada
Thank you! I'll have to dust off my old physics degree for those . . . <g>

. charles

#2120817 - 07/21/13 12:21 AM Re: A little light reading (or time for a SuperMODEL) [Re: voxpops]
voxpops Offline
2000 Post Club Member

Registered: 03/20/07
Posts: 2918
Loc: Oregon
Hope you find them interesting, Charles.

Having now read the paper "The Acoustics of the Piano" all the way through, I'd like to recommend it as a really valuable resource for those who are fairly new to piano and its science. For example, it contains a great explanation and description of inharmonicity, which I think is relevant to the question of why modeled pianos (in particular) often have great bass and treble ranges, while the mid-region suffers from sounding synthetic.

So, on to the physics behind modeling...

#2121341 - 07/22/13 02:01 AM Re: A little light reading (or time for a SuperMODEL) [Re: voxpops]
bbent Offline
Full Member

Registered: 12/24/10
Posts: 95
Loc: CA, USA
Thanks for the links ... they were both very interesting.

NY Steinway A 1907, FP-7F wi RPU-3
HW: GA-X58A-UD3R, i7-930, 6GB & 2ea WD2002FAEX, 1ea WD1001FALS1TB, UA1000, Yamaha 2.1 HSM80M/HS10W, DPA SMK4061, Mackie LM3204
SW: Win7 Pro x64, Sonar PE 8.5.3, NI Komplete 8 Ult, Ivory Grand Pianos II

#2121490 - 07/22/13 12:02 PM Re: A little light reading (or time for a SuperMODEL) [Re: voxpops]
voxpops Offline
2000 Post Club Member

Registered: 03/20/07
Posts: 2918
Loc: Oregon
Glad you found them worth the time, Bob.

#2121681 - 07/22/13 09:34 PM Re: A little light reading (or time for a SuperMODEL) [Re: voxpops]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4272
Loc: Northern NJ
Originally Posted By: voxpops
Beats counting sheep! wink

A supermodel always beats counting sheep! ;-)
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