I recognized the tune right away, but less by pitch than by rhythm and contour. That was because on my computer, the sound file was generating a set of 'inharmonic' differentials, obscuring the intended pitch. The Nyquist frequency suggests a minimum 10+ khz sampling rate, if these really are sine waves. If they have any overtones at all, you have to double the highest desired frequency of interest and sample at that rate X 2, or set up a filter. I think we're hearing a an awful lot of fold-over.
Bob Dickow Lionel Hampton School of Music -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, November 12, 2010 5:22 AM To: [email protected] Subject: [Hornlist] Name that (high frequency) tune! I found a place to host a sample melody I generated with Sine waves between 7000Hz and 11000Hz. Name that tune! (I used something with a particular key...). _http://www.mediafire.com/file/d64vyqgt3lz18ri/highmelody.wav_ (http://www.mediafire.com/file/d64vyqgt3lz18ri/highmelody.wav) Let's see if people can really tell frequencies apart above 5000Hz. -William In a message dated 11/12/2010 6:41:05 A.M. Eastern Standard Time, [email protected] writes: On 12Nov 2010, at 12:07 , Michiel van der Linden wrote: > "Melodies played using frequencies above 5000 Hz sound rather > peculiar. You can tell that something is changing but it doesn't sound > "melodic" in any way." > > I've not yet found an audio example online, but will keep looking. Creating your own example on your computer should be easy, I'll try that in a couple of days if nobody else does. Daniel _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/valkhorn%40aol.com _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/dickow%40uidaho.edu _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
