search

scoreur / soloAnalysis

This repository gives the analysis to one-source sound clips, fetch its rythm, pitches and evaluate its tonal quality.
0 stars 1 forks source link

f0_test is raw #1

Open jollwish opened 10 years ago

jollwish commented 10 years ago

The present f0_test is based on auto-correlation and is vulnerable to real-life noised audio. Something further has to be done such as denoising, combination with other f0 analysis algorithm, or Baysian method usage.

chenxiaoqino commented 10 years ago

Is it possible to add a denoise filter beforehand to solve this problem with minimum efforts? Or, we can exploit the rules between frequencies of regular scores, (2^(1/16)) times between each other, to distinct them from irregular noise.

Yours sincerely, Danny Chen 计科30 陈晓奇 about.me http://about.me/cxqn

On Sat, Aug 16, 2014 at 1:46 AM, jollwish notifications@github.com wrote:

The present f0_test is based on auto-correlation and is vulnerable to real-life noised audio. Something further has to be done such as denoising, combination with other f0 analysis algorithm, or Baysian method usage.

— Reply to this email directly or view it on GitHub https://github.com/scoreur/soloAnalysis/issues/1.

jollwish commented 10 years ago

Yes and I've tried several denoising algorithms. But one problem still remains that it's not so easy to distinguish f0,2f0, or 1/2f0. I think Bayesian method can solve this and Wang Kangning is working on that.