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Hello all. I finally got successful with measuring my soundcard. There seems to be a dip in the middle of the graph. I don't know if it is normal. The soundcard is built-in on the motherboard. I believe it says a Realtek ALC889A codec. Can I use this measurement to calibrate the soundcard? Thanks.

Manny
 

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I finally got successful with measuring my soundcard.
Not quite.

It looks like you have feedback. This is usually caused by 'monitor mode' enabled in the soundcard. The result is that the line-in is incorrectly enabled in the Windows Playback Mixer. The line-in should only be enabled in the Recording Mixer. Disable it in Playback and try your soundcard cal again.

There should be no dips in the response.

brucek
 
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