[linux-audio-user] what is DC? [was Re: Analyzing ogg files]
MartinR at jbu.edu
Wed Dec 3 22:44:31 EST 2003
Heh. I didn't read the email carefully. I wrote thinking you were asking what a DC offset is rather than about the context it was used in. :)
> Thank you Reuben.
> -Eric Rz.
> On Wed, Dec 03, 2003 at 11:23:50AM -0600, Reuben Martin wrote:
> > DC offset is when there is a Direct Current running over
> the same lines that audio runs through. Since sound signals
> are a type of Alternating Current, the addition of the DC
> tends to shift, or offset, the audio signal.
> > regards
> > -Reuben
> > What is DC offset in this context? I've seen this term on this list
> > before, but don't really understand what it means.
> > Is this the same thing refered to by the ecasound options
> -ezf and -ezx?
> > -ezf
> > Finds the optimal value for DC-adjusting. You can use
> the result as
> > a parameter to -ezx effect.
> > -ezx:channel-count,delta-ch1,...,delta-chN
> > Adjusts the signal DC by 'delta-chX', where X is the
> channel number.
> > Use -ezf to find the optimal delta values.
> > or is that a different DC?
> > -Eric Rz.
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