Hi ric, Vol units= amplitude, it will relate to db level. I'll check with Dean on details if he is prepared to share that imfo. The brighter or less elastic the hammer the greater the ratio between the fundamental and the harmonic series. Power if thought of as ergs per sec. You will note that the sustain time of the partials increase with the shoulders being less rigid. The RMS values of the voiced note has dramatically increased. For a warm sound you should be looking for a slower exponential ramp of the harmonic series. In the bass, the harmonic amplitude will build to the 4th partial and then taper off. A bright cutting sound, will produce a high fundamental, and have less harmonic development, in the treble. In the bass almost no fundamental, and an explosive 3rd and 4th partial. Over voice a hammer, ( shoulders too soft) the tone becomes un focused as the partials will be as strong as the fundamental. Needle the crown too much and the note will become dead and muted. If you get a chance observe the changes on a RCT pianalyser. and all will be very clear. At one time, when teaching voicing classes, I would get all kinds of spirited debates on hearing high frequency partials. By doing the alterations and showing the changes on a spectrum analyser, there is no discussions. For years i thought that bright screaming notes were lots of high harmonics, now I know different. Hope this helps. Roger At 01:45 AM 23/11/00 -0600, you wrote: > >> >> > The softer the hammer, the less pronounced the higher partials...so, >> >tuning irregularties show up less in a unison with a softer hammer. There >is >> >a 'wider' acceptance of what is perceived as 'in tune'. >> > >> > >> >Dan Reed >> >> Hi Dan, >> It is just the opposite, bright hammer mostly fundamental, and >> low harmonic development > > >Wait a minute > If I want a soft sound do I want high partials or low fundamental and >"low harmonic development" what ever that is. ? I am taking you mean >"bright hammer" as a hard hammer. How does a hard hammer give mostly >fundamental? > >I don't understand the data below. What is or are "Vol units" ? >---ric. > > > >> >> An example of A4/A5 before and after voicing. >> >> Note A4 Partial Sec sustain Vol units Sec sustain Vol >units >> 1 4.46 11.26 4.46 >> 15.36 >> 2 4.04 4.26 4.32 >> 13.28 >> 3 4.32 4.60 4.46 > Roger Jolly Saskatoon, Canada. 306-665-0213 Fax 652-0505
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