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Topic: my chaintech soundcard has dcoffsets (Read 2501 times) previous topic - next topic
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my chaintech soundcard has dcoffsets

running w98se.  Chaintech only has the wdm drivers.  Is this dc offset problem correctable.  I sent a question to the chaintech soundcard tech people but thought I would bring it up here in case anyone knows.

BTW, I know it is correctable with my editor, goldwave.
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RockyJ

my chaintech soundcard has dcoffsets

Reply #1 –
How big is the DC offset of each channel (percentage) ?
I think this is a general problem of the line ins of soundcards...
Cool edit has a special funtion to remove the offset during recording.
I know that I know nothing. But how can I then know that ?

my chaintech soundcard has dcoffsets

Reply #2 –
rt channel = .0003 left=.001

it may be in the cards design.  I thought it may be a software issue with their drivers.
--
RockyJ

my chaintech soundcard has dcoffsets

Reply #3 –
Quote
rt channel = .0003 left=.001

it may be in the cards design.  I thought it may be a software issue with their drivers.
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0,001% DC offset means 0,327... sample values out of cerntre !
Do I understand you correctly ? Does the offset appear during recording through digital-in ?
If no, this is absolutely nothing to worry about.
Sounds rather like I don't understand you.
I know that I know nothing. But how can I then know that ?
 

my chaintech soundcard has dcoffsets

Reply #4 –
Just attached my chaintech AV710 card to the scope. There is no noticeable DC offset as far as I can see. Yours might be faulty or at least different from mine. I would only worry about numbers like the ones you posted if you have very low impedence headphones or a high gain DC coupled preamp connected to the card.