Jump to content

PC optical input with fixed 0 db volume

Rate this topic


thomasraden

Recommended Posts

I have a SB Live card with an optical input connector. When recording digitally from that input it is possible to adjust the input volume up or down in Windows, just as it would be an analog input. As a digital input is fixed in volume and desirable to be in that way I dont know the reason for wanting to amplify or attenuate the level. A recorded digital signal can never be higher than 0dB so why wanting to limit the level? Is it not desirable to do an exact copy of the digital signal?

I had an earlier soundcard from Digital Only Labs that was fixed at 0 db that recorded my sources exactly as they were stored from the digital input. If my recorded material on my portable digital equipment had a top level recording of -8dB I would get exactly the same level when recording it on my PC, but this is not possible with the SB Live card.

If I crank up the volume levels in windows to maximum, logically a 0dB input signal would be recorded as 0db but in this case the signal gets distorted as if the SB Live card would actually amplify it more than 0dB.

Any suggestions what causes this?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...