[linux-audio-dev] db gain controls.

[Lee Revell]

On Fri, 2005-12-23 at 03:00 +0100, David Kastrup wrote:
> James Courtier-Dutton <James at superbug.co.uk> writes:
> 
> > Hi,
> >
> > I have a question for some audio professionals out there.
> > What is the smallest sensible gain control step in dB.
> > Is it 0.5dB ?
> > I am asking, because if one is using a digital gain control in a 24bit
> > fixed point DSP, once could use almost any step size, so I am looking
> > for the smallest sensible size to use.
> 
> Well, the minimum possible difference for 24bit is between -2^23+1 and
> -2^23, and that would be about 0.000001dB.

He said sensible not possible.

Lee