200e

On Sep 28, 2008, at 6:14 AM, Thomas Buckler wrote:

> It's not a superfluous question. It's completely valid.27.5 Hz to  
> 7040 Hz
> is roughly a third of what the human ear can detect.


I don't know where you came up with the range of 27.5 Hz to 7040 Hz as  
being a third of the range of human hearing. The human ear's range of  
hearing is roughly 20 Hz to 20,000 Hz in a young person, which  
corresponds to about ten octaves, from E0 at 20.60 Hz to E9 at  
21096.16 Hz. It's worth noting that we are talking about the  
fundamental frequency here, not the output frequency range. If a  
261e's fundamental frequency is set to the top of its range, it can  
still generate harmonics above the fundamental.

Note	MIDI	Freq in Hz		Note
C-1	0	8.18		Below pitch hearing
E0	16	20.60		Bottom of pitch perception, for most people
A0	21	27.50		Lowest quoted 200e fundamental
A8	117	7040.00		Highest quoted 200e fundamental
G9	127	12543.85	Highest MIDI range
E9	136*	21096.16	Starting to get into the Dog/Bat range
*Note that this is beyond the range of MIDI notes.

You might want to look at the chart on this page, showing the  
frequency range of a variety of instruments: http://en.wikipedia.org/wiki/Musical_acoustics 
   An 88 key grand piano usually goes from A0 27.5 Hz to C8 at 4186.01  
Hz, for example.

-C

Chris Muir
cbm@well.com	
http://www.xfade.com








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