FPGA Central

Hi! I want to analyse music clip.doing STFT on this clip for pitch
tracking results for time vs frequency graph. the graph should be 2D
plot. how to do this in matlab? I want to find out the pitch of tones
in music clip.

regards
kalyani

On May 17, 12:03 am, kalyani <kalyaniak...@gmail.com> wrote:
> Hi! I want to analyse music clip.doing STFT on this clip for pitch
> tracking results for time vs frequency graph. the graph should be 2D
> plot. how to do this in matlab? I want to find out the pitch of tones
> in music clip.

The first problem is that the pitch of tones in music is not
the same as a graph of the frequency peaks from an STFT.

Depending on the length of the STFT, the ear's resolution of
the spectrum frequency content may be higher than the bin
spacing of the FFT, and the perceived pitch may be near a
submultiple of the harmonics present in the spectral result,
even if that frequency is not itself present. The previous
time domain history also affects the current pitch.

..


IMHO. YMMV.
--
rhn A.T nicholson d.0.t C-o-M