Fix computer audio buzz noise

If you’ve ever heard a faint buzz, hiss, or hum coming from your computer audio output, this video explains why it happens and how to fix it without expensive gear. I show a simple, low-cost solution to eliminate background noise from your audio interface or any other USB-connected audio device.

I’ll demonstrate how ground noise from your computer contaminates your audio system, and how to remove it safely using an audio isolation transformer or a USB ground loop isolator. You’ll learn why these issues occur, how to diagnose them, and which inexpensive tools can restore a clean noise-free signal.

Rolls HE18 Buzz Off 2-Channel Hum and Buzz Remover
https://amzn.to/4mZOP84

The Rolls HE-18 Hum Eliminator. This transformer isolation box breaks the ground connection between pieces of gear while still passing your signal cleanly, removing that hum once and for all.

Production equipment I use or recommend:
https://www.barrywatson.com/recommend...

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Referral credit from qualifying purchases helps support this channel at no-cost to you.

00:00 – Introduction: Solving noisy computer audio
00:06 – An easy and inexpensive fix
00:15 – Identifying the background buzz and hiss
00:29 – How the problem appears when no audio is playing
00:42 – Understanding normal low-level audio noise
00:55 – When noise becomes noticeable
01:08 – My audio setup and interface explanation
01:23 – USB connection and audio playback chain
01:35 – Searching online for answers
01:45 – Common (and costly) upgrade suggestions
02:07 – Why the audio interface isn’t the problem
02:26 – The real issue: noisy computer ground bus
02:53 – How computer switching noise leaks into audio
03:12 – Understanding how ground noise causes hum and buzz
03:18 – The solution: isolate computer and audio system grounds
03:29 – Using a USB ground isolator (USB “ground buster”)
03:42 – How the isolator passes signal but breaks ground connection
03:48 – Optional clean 5V power supply benefit
03:59 – The cost of USB isolators and why I used an alternative
04:17 – Introducing the inexpensive Boss audio transformer
04:26 – How an audio transformer isolates grounds safely
04:38 – Installing the transformer in the signal path
04:45 – Disconnecting physical grounds while passing clean audio
05:02 – Effective solution for half the cost of a USB isolator
05:10 – Addressing sound quality concerns about transformers
05:15 – Listening tests and real-world results
05:25 – Buzz eliminated, leaving only low-level hiss
05:37 – Perfect low-cost fix for clean computer audio
05:42 – Product links and where to buy
05:52 – Subscribe for more audio problem-solving videos
06:07 – Final thoughts and appreciation