Hello, currently I have a task to extract MDVP (Multi-dimentional Voice Parameter) from sample voice.
I really new using matlab for doing voice processing. I found some problem to extract FTRI, I was given the step to extract it, but I don't know how to interpret the step into matlab code.
The method for FTRI consist of the following steps:
Division of fundamental frequency period-to-period (Fo) data into 2 sec. windows. For every window, the following procedure apply:
- Low-pass filtering of the Fo data at 30 Hz and downsampling to 400 Hz
- Calculation of the total energy of the resulting signal.
- Subraction of the DC-component.
- Calculation of autocorrelation funtion on the residue signal
- Division by the total energy and conversion to percent.
- Extraction of the period of variation.
- Calculation of FFTR and FTRI corresponding to the priod of variation found
Computation of the average autocorrelation curve and average FTRI for all processed windows.
[y,fs] = audioread('sample.wav');
[f0, idx] = pitch(p, fs);
FO = mean(f0(:,1));
I only know the way only to get Fo value.
If anyone know more about this one, please help me, and I anyone know about voice processing tools provided by matlab that can extract easily those MDVP feature please tell me.
Thank you,
Best Regards.
