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hissing noise

Posted: Tue Sep 09, 2014 12:10 pm
by apathity
I'm using Guitarix with a Behringer Guitar Link USB Cable and I get a hissing noise but it's not directly amplified by guitarix distortion.

Attached is a short sample of the noise. Without listing all my hardware components, what you do you think could be done about this?

Re: hissing noise

Posted: Tue Sep 09, 2014 4:25 pm
by artek
Do you get hissing noise on clean guitar? Can you post sample?

Re: hissing noise

Posted: Wed Sep 10, 2014 6:32 am
by apathity
Yes I do, I didn't really notice up till now but it is definitely there (listen to the new sample)

I'm not sure how the noise is amplified by guitarix, I have some really high gain presets but the noise is actually minimal compared to the first sample I posted earlier.

I'm pretty sure it's the Behringer interface though. When I switch to a different PC I hear a very similar noise there. So either I have two bad PC's or I have a bad USB interface (or both :))

Re: hissing noise

Posted: Wed Sep 10, 2014 5:01 pm
by artek
I got no idea what's goin on! But to measure hiss on your interface you need to record silence.
I think you are getting feedback from your speakers (hiss.mp3) and you get sound of holding strings down on guitar (hiss-clean.mp3).
Anyway "silence" sections on both files are too much different to blame usb interface.
Artek

Re: hissing noise

Posted: Thu Sep 11, 2014 3:38 am
by apathity
Thanks, I will record total silence later today.

I'm using headphones plugged into the interface, so there are no speakers!

You are right about the string noise in hiss-clean.mp3 but if you turn the volume up really loud you will hear a constant noise, it is most audible from 00:05 to 00:11 I guess (because of the guitar string ringing out)

Re: hissing noise

Posted: Thu Sep 11, 2014 4:17 pm
by artek
apathity wrote: I'm using headphones plugged into the interface, so there are no speakers!
That is probably answer, it could be interface crosstalk.
I have behringer too and I got crosstalk about +20db above noise level - don't remember exactly.

Re: hissing noise

Posted: Fri Sep 12, 2014 3:41 am
by apathity
Thanks a lot, I would have never assumed that it has to do with the headphones! I will check this out later.