I just noticed (while playing a game with sounds sampled at 8000 Hz and having rate lock disabled) that when I choose any sample rate below 22050 in the Codec Sample Rate section of the Delta mixer, I get a *continuously* noisy output, like a hissing noise. This is not the kind of noise I would expect when using a low sample rate, as it is present even when no sound is being played..
The noise is worse / louder as I choose lower sampling rates. The mixer has no effect on the noise level, even if I mute the output. I am using the Delta mixer as my "pre-amp", the 410 is directly connected to my amplifier, so this noise is quite objectionable in my setup.
I wonder is this "normal" for the 410, is my computer especially noisy, or could my 410 be defective?
The noise is worse / louder as I choose lower sampling rates. The mixer has no effect on the noise level, even if I mute the output. I am using the Delta mixer as my "pre-amp", the 410 is directly connected to my amplifier, so this noise is quite objectionable in my setup.
I wonder is this "normal" for the 410, is my computer especially noisy, or could my 410 be defective?