Audacity Forum

I know that 261.63 is C4 or middle C
but how did you get that from looking that the graphic?

If I did not say that I did a MIDI Pitch 60 Pluck , would you know that the fundamental frequency 261.63 Hz from the graphic ?

that is what I am asking.

Bill
"Nobody said the fundamental would be the highest peak (although it often is)."

It is always...

how are you getting 261.63???

looking at this graphic i would not get that the fundamental F is 261.63
how are you getting that ?

steve,

I got those numbers from the plot
please see the pic1.png and spectrum4.txt

ok if you download the file from the site ( and not just recording) and increase the Size to 4096 the fft seem to work.
also but how about this one
I did the Generate Pluck
Pluck MIDI pitch: 60 hz
and
when I do the fft I get
the peaks are 1832 hz and 3401 hz

that is not close at all

ok I am using this site to test :
http://onlinetonegenerator.com/

and I am using 261Hz and I am doing a sawtooth wave.
but the fft give me this back :
the highest point is 1291.992188 hz that is not close to 261 hz
please see attachments

What algorithm does Audacity uses for their pluck?
Also, what musical instrument is the Pluck from ?

http://en.wikipedia.org/wiki/Karplus%E2%80%93Strong_string_synthesis ok I just want to make sure I understand how this works. you have N with = fs/fo . fs is sampling rate = 44100Hz Fo is the note you want to play like 440hz then you make an array of N sizes and full it up with random value between ...

when I use Audacity Pitch Shifting with changing the temp/speed, it seem to work really well. but I tried to code one of my know, but IDk why minez is not working like Audacity is. are you doing some different ? My program make it know files, so I use that same file on both Audcity Pitch Shifting wi...