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Subject:Noise in Sound Forge 4.5
Posted by: rcaudle
Date:8/23/1999 4:05:00 PM

We are using SoundForge to record audio for our website.
While recording we are getting a hiss in the background. We
have tried to move the computer away from the power supplies
but still have it (not a 60Hz Hum). We have adjusted all of
the settings in Sound Forge and cannot get rid of it. The
only way that we have found to get rid of it is to adjust
the level of the line in signal to the audio card. When I
do this I cannot hear the sound anymore. Any help is
greatly appreciated.

Subject:Re: Noise in Sound Forge 4.5
Reply by: slappy
Date:8/23/1999 11:43:00 PM

Rodney,

I'm going to assume that you've listened to the source AT the source
and ruled out the source audio as the culprit...

It sounds like you are sending a low level signal into your souncard.
( What kind of gear r u using to play the source into the sound card?
what kind of sound card do you have? )

If you are sending a 'mic' or consumer audio (not the same thing but
both low level) level signal to an input that requires a line level
signal you will have to crank the sound card to get anything out of
it... problem with that is that most (all ) consumer sound devices
have very noisy amplifiers (not to mention the noise INSIDE your
machine) this is where your noise comes from.

My suggestion is to increase the level you send to the computer while
keeping the record level of the sound card low.

slappy

Rodney Caudle wrote:
>>We are using SoundForge to record audio for our website.
>>While recording we are getting a hiss in the background. We
>>have tried to move the computer away from the power supplies
>>but still have it (not a 60Hz Hum). We have adjusted all of
>>the settings in Sound Forge and cannot get rid of it. The
>>only way that we have found to get rid of it is to adjust
>>the level of the line in signal to the audio card. When I
>>do this I cannot hear the sound anymore. Any help is
>>greatly appreciated.

Subject:Re: Noise in Sound Forge 4.5
Reply by: NotWithStupid
Date:8/24/1999 3:16:00 PM

A lot depends on your sound card. The typical Sound Blaster
equivalent will be rather hissy. Even a high end card can have a
surprisingly high noise floor. Try recording with nothing plugged in
to the sound card and see if the hiss is there. The signal strength
of the hiss will be your noise floor. Unfortunately, the only
reasonable way to get around that is to upgrade the sound card to
preferably something that has external DACs.

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