Log in

Log in

< Back to Focusrite Scarlett

Enlarge

Tutorials

Classified Ads

Thread Unwanted noise from 18i20 Headphone out

1 comment
2 participants
876 views
2 followers

austinwoodward33

New AFfiliate

First post

1 Posted on 05/19/2017 at 21:47:33

Hey guys, so I'm trying to set up a pretty weird thing where the first headphone out on my 2nd gen 18i20 runs into my computer motherboards mic input, so I can stream all the DAW audio and desktop audio to OBS. It works as intended, but when there's nothing playing you can hear pretty significant crackling microphonic noise that is not good for streaming live. Any idea why it's there? I'm using a pretty high quality cable, but not a super high quality adapter although it's hard to imagine it making that significant of an impact. What are your thoughts?

Watch by email

angelie

AFfluent Poster

2 Posted on 05/25/2017 at 05:06:05

Hey,

First of all I like to mention that a headphone amp signal is to high for a mic in. It is better to use line in.

Second : the input impedance of the mic is different than the output impedance of your headphone amplifier.

I think that all the noises are produced by your computer. A badly grounded computer can act as a radio transmitter.
You will often hear the hard drive if the computer is reading or writing.

In some cases you can hear mouse movement too.

So question here is:

Are you correctly grounded?
Are you using cables with good quality shielding?

- Angelie

It's not about what you got to use .... but how you use what you got...

[ Post last edited on 05/26/2017 at 10:40:23 ]

List of moderators

cookies

We are using cookies!

Yes, Audiofanzine is using cookies. Since the last thing that we want is disturbing your diet with too much fat or too much sugar, you'll be glad to learn that we made them ourselves with fresh, organic and fair ingredients, and with a perfect nutritional balance. What this means is that the data we store in them is used to enhance your use of our website as well as improve your user experience on our pages and show you personalised ads (learn more). To configure your cookie preferences, click here.

We did not wait for a law to make us respect our members and visitors' privacy. The cookies that we use are only meant to improve your experience on our website.

Configure my preferences
Accept all

Our cookies

Cookies not subject to consent

These are cookies that guarantee the proper functioning of Audiofanzine and allow its optimization. The website cannot function properly without these cookies. Example: cookies that help you stay logged in from page to page or that help customizing your usage of the website (dark mode or filters).

Google Analytics

We are using Google Analytics in order to better understand the use that our visitors make of our website in an attempt to improve it.

Advertising

This information allows us to show you personalized advertisements thanks to which Audiofanzine is financed. By unchecking this box you will still have advertisements but they may be less interesting :) We are using Google Ad Manager to display part of our ads, or tools integrated to our own CMS for the rest. We are likely to display advertisements from our own platform, from Google Advertising Products or from Adform.

You can find more details on data protection in our privacy policy.
You can also find information about how Google uses personal data by following this link.

We did not wait for a law to make us respect our members and visitors' privacy. The cookies that we use are only meant to improve your experience on our website.

Select all

Our cookies

> Cookies not subject to consent

These are cookies that guarantee the proper functioning of Audiofanzine. The website cannot function properly without these cookies. Examples: cookies that help you stay logged in from page to page or that help customizing your usage of the website (dark mode or filters).

Google Analytics

We are using Google Analytics in order to better understand the use that our visitors make of our website in an attempt to improve it. When this parameter is activated, no personal information is sent to Google and the IP addresses are anonymized.

Advertising

This information allows us to show you personalized advertisements thanks to which Audiofanzine is financed. By unchecking this box you will still have advertisements but they may be less interesting :) We are using Google Ad Manager to display part of our ads, or tools integrated to our own CMS for the rest. We are likely to display advertisements from our own platform, from Google Advertising Products or from Adform.

Confirm my preferences

As an alternative, you can also prevent us from using cookies and permanently hide this cookies popup by clicking here.

You can find more details on data protection in our privacy policy.
You can also find information about how Google uses personal data by following this link.