# Frequency determination using discrete wavlet packet analysis

Started by November 17, 2010
```Hello!

I am trying to implement a student project which introduces phase
distortions in a audio signal for select frequency range.But the frequency
detection is done using DWPA FB which is very new to me!
Please,can anyone explain me how to(on MATLAB):

1)decompose the signal at some level using discrete wavelet packet
analysis into subbands.
2)then basically i want to choose the subbands between my required range.

I want to use these subbands only for the phase distortions.Later i want
to again synthesize the singal back.

Thank you!

```
```
lalit_vagabond wrote:

> Hello!
>
>  I am trying to implement a student project which introduces phase
> distortions in a audio signal for select frequency range.But the frequency
> detection is done using DWPA FB which is very new to me!
>   Please,can anyone explain me how to(on MATLAB):
>
>  1)decompose the signal at some level using discrete wavelet packet
> analysis into subbands.
>  2)then basically i want to choose the subbands between my required range.
>
>   I want to use these subbands only for the phase distortions.Later i want
> to again synthesize the singal back.

Tomtoms, smoke, mirrors and buzzwords. Drop it and do something useful.

VLV

```
```On Nov 17, 12:43=A0pm, Vladimir Vassilevsky <nos...@nowhere.com> wrote:
> lalit_vagabond wrote:
> > Hello!
>
> > =A0I am trying to implement a student project which introduces phase
> > distortions in a audio signal for select frequency range.But the freque=
ncy
> > detection is done using DWPA FB which is very new to me!
> > =A0 Please,can anyone explain me how to(on MATLAB):
>
> > =A01)decompose the signal at some level using discrete wavelet packet
> > analysis into subbands.
> > =A02)then basically i want to choose the subbands between my required r=
ange.
>
> > =A0 I want to use these subbands only for the phase distortions.Later i=
want
> > to again synthesize the singal back.
>
> Tomtoms, smoke, mirrors and buzzwords. Drop it and do something useful.
>
> VLV

He seems to be providing entertainment to you. Perhaps you should pay
him for his services.
```