I read with great interest some of what is on Alex Galembo's web site. ........................................................................... .......................... | http://www.geocities.com/galembo Differences between upright and grand pianos We synthesized twelve E1 piano-like tones differing by both spectral width and inharmonicity. Four levels of spectral width were combined with three levels of inharmonicity. The number of partials and the steps between ascending values of spectral width were chosen to obtain the same difference in spectral width produced in two ways: by changing inharmonicity without changing number of partials, and by changing number of partials without changing inharmonicity. The synthesized tone that had minimal spectral width and minimal inharmonicity served as the standard tone. ........................................................................... ......................................... Being ignorant of the term, I would like to know more about spectral width since the claim that inharmonicity and sw are both important influences in tone. An interesting wav file can be downloaded. I thought it was of A0 on an upright, a concert grand and synthesized tone. The pitch of the concert piano sounded much lower than the other two. Or were they E1 and A0? I was not clear on that. Illusion or due to stretching? I noticed some of Dr Galembo's articles dealing with musical illusion. A very interesting site. Especially the mention of a book in progress, a technical history of the piano. We are all ears on that one. Any advance tidbits? ---ric From: Alex Galembo <alex@speech.kth.se> To: <pianotech@ptg.org> Sent: Sunday, January 13, 2002 11:12 AM Subject: RE: String Tension Calculation | Hi, Terry, | | Two ways. | | First, simple - go to | http://www.geocities.com/galembo_alex/chc3.html | fill the form: | 587.3295358 (nonstretched D5, use dot to separate decimals) | Inharmomicity 0 | semitones 0 | cents 60 | Press "Calculate" | Receive result :608.0417 Hz | | Second: calculate (for examplee, using Excel: | Freq(D5)*2^(60/1200) | | best luck again | | Alex | | ************ | Alexander Galembo, Ph.D | Visiting Researcher | Dept. of Speech, Music and Hearing | Royal Institute of Technology | Drottning Kristinas v. 31 | SE-10044, Stockholm | Sweden | | Tel. work 46-8-7907856 home 46-8-7369978 Fax 46-8-7907854 | email: alex@speech.kth.se | WEB http://www.geocities.com/galembo_alex/ |
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