Re: Using butterworth filter

[Sergei Steshenko]

----- Original Message -----
> From: StandardOctaveUser <address@hidden>
> To: address@hidden
> Cc: 
> Sent: Saturday, December 15, 2012 10:55 AM
> Subject: Re: Using butterworth filter
> 
[snip]
> Ie. butterworth is generally 
> preferred where pass and stop
> band quality is more important
> than transition sharpness. 
[snip]
> --

Huh ?

Justify that Butterworth is better than, say, Bessel.
Or that it's better than Chebyshev.

Have you ever also considered _phase_ response ?

Do you at all understand when phase response is important ?

As I said, one needs to _exactly_ understand what the final "destination" of 
the signal is, i.e. for what it ultimately is supposed to be used, and based on 
that to select appropriate filter.

Regards,
  Sergei.