How do you change pitch with wavelet transforms in MATLAB?

1. How to use wavelet in Matlab?
2. How to use discrete wavelet transform in Matlab?
3. What is the disadvantage of wavelet transform?
4. What is wavelet transform in Matlab?

How to use wavelet in Matlab?

wt = cwt( x , wname ) uses the analytic wavelet specified by wname to compute the CWT. [ wt , f ] = cwt(___, fs ) specifies the sampling frequency, fs , in hertz, and returns the scale-to-frequency conversions f in hertz.

How to use discrete wavelet transform in Matlab?

[ cA , cH , cV , cD ] = dwt2( X , wname ) computes the single-level 2-D discrete wavelet transform (DWT) of the input data X using the wname wavelet. dwt2 returns the approximation coefficients matrix cA and detail coefficients matrices cH , cV , and cD (horizontal, vertical, and diagonal, respectively).

What is the disadvantage of wavelet transform?

Although the discrete wavelet transform (DWT) is a powerful tool for signal and image processing, it has three serious disadvantages: shift sensitivity, poor directionality, and lack of phase information.

What is wavelet transform in Matlab?

Wavelet transforms are mathematical tools for analyzing data where features vary over different scales. For signals, features can be frequencies varying over time, transients, or slowly varying trends. For images, features include edges and textures.