RE: [linux-audio-user] what is DC? [was Re: Analyzing ogg files] - Linux-audio-user

3 Dec 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. :)

regards
-Reuben

...
  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. 