Author: Loree BF51
Date: 2012-03-31 00:50
As I actually am a recording engineer, as well as an oboist, I feel I am in a position to talk about the things you have said with some authority, especially after doing a little research to refresh my memory which turned out to be accurate anyway. First of all, from the rec eng perspective only, "noise" was greatly reduced. by Ray Dolby in the early 1960's with the "A" system for pro use. Later the B system covered consumer recorders, as well as the DBX system. Then, Digital recording resulted in noise levels so low, as to be virtually eliminated. However, noise in the oboe reed is something I don't understand right now. Now, as far as the frequencies you mention, just let me point out the following data. Let's say the oboe has a range from the B-flat (below middle C on the piano) up to the upper register, f-natural (4 spaces above the top line on the treble clef. Now, the fundamental frequency of that top F is 1396.91 hz. or app. 1400 hz. Now, the 3 "useable" overtones in a musical note are the octave, O (2xF), O.+5th (3xF), and 2O.+3rd (4F). Please note right here that the third overtone of the hi-F is only 5600 hz. and all the overtones of the lower notes are going to be less, most considerably less. not to mention the fundamentals, so this, then requires downward revision of your frequency specifications. Playing around with a Sine-wave generator with a dial helps in making a better analysis, here. Going back to your reed noise, could you explain what you think that is? In playing duets with other oboists, I have run into a rather strong, noise "resultant" (some might call it "buzzing"), when playing in 3rd's, or maybe fourths or fifths, even though I felt I was in tune with the other player, although it's possible, that it is slight, out-of-tuness that might generate this noise, as it could be "sum and difference" frequencies, not present in the original, two notes. Regards.
R. Still former student
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