[sdiy] Fast envelope follower circuit needed..

[Tristan]

A 3dB attenuation actually approximates a halving of the signal power, as power is related by the 
square of the amplitude. Changing a 6 volt signal to 12 volts is an approximately 6dB increase in 
amplitude.

/Tristan  

On Sun, Mar 31st, 2013 at 3:43 AM, Paul Anderson <wackyvorlon at me.com> wrote:

> To add to these comments, the cut off on most filters is often defined at the
> point of 3dB of attenuation. 3dB roughly equates to a doubling or halving of
> amplitude. So a 3dB increase on a 6 volt signal makes it 12v. 
> 
> Filters look very simple, but the theory is surprisingly complex. 
> 
> Sent from my iPhone
>