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Sound interference from multiple devices

SunshineBob
By SunshineBob
in Audio
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Hello my problem is a bit weird one. I have a PC and Nintendo Switch. I want to hear both devices at the same time as I talk on teamspeak with friends and play either PC or Switch games. So I bought Behringer 802 mixer and some 3.5mm to dual 6.5mm jack cables. Plugged one cable to my green sound jack in my motherboard and dual 6.5mm to the mixer and everything is fine. Connected my Switch to a monitor via HDMI and plugged a cable to monitors headphone jack and dual 6.5mm to another input on the mixer. I hear sounds now the problem is there's buzzing sound and when I regulate volume knobs the buzzing either strengthens or gets weaker. There is no issues on both input channels using separately with either PC or Switch. As an output I just use my Sennheiser HD598. What can I do? How do I eliminate the buzzing? What may be the problem? There's also a lot of electrical cables around. Thanks in advance.

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46 minutes ago, SunshineBob said:

Hello my problem is a bit weird one. I have a PC and Nintendo Switch. I want to hear both devices at the same time as I talk on teamspeak with friends and play either PC or Switch games. So I bought Behringer 802 mixer and some 3.5mm to dual 6.5mm jack cables. Plugged one cable to my green sound jack in my motherboard and dual 6.5mm to the mixer and everything is fine. Connected my Switch to a monitor via HDMI and plugged a cable to monitors headphone jack and dual 6.5mm to another input on the mixer. I hear sounds now the problem is there's buzzing sound and when I regulate volume knobs the buzzing either strengthens or gets weaker. There is no issues on both input channels using separately with either PC or Switch. As an output I just use my Sennheiser HD598. What can I do? How do I eliminate the buzzing? What may be the problem? There's also a lot of electrical cables around. Thanks in advance.

Is it a constant tone? 50/60Hz? If so you may have a ground loop problem. Basically the ground from the TV is at a different voltage compared to the PC causing current to flow at mains frequency inducing the hum. 

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18 minutes ago, r4tch3t said:

Is it a constant tone? 50/60Hz? If so you may have a ground loop problem. Basically the ground from the TV is at a different voltage compared to the PC causing current to flow at mains frequency inducing the hum. 

Ummmm I use a monitor as a TV. The monitor is 144hz. How do I check? I'm a noob at audio.

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19 hours ago, SunshineBob said:

Hello my problem is a bit weird one. I have a PC and Nintendo Switch. I want to hear both devices at the same time as I talk on teamspeak with friends and play either PC or Switch games. So I bought Behringer 802 mixer and some 3.5mm to dual 6.5mm jack cables. Plugged one cable to my green sound jack in my motherboard and dual 6.5mm to the mixer and everything is fine. Connected my Switch to a monitor via HDMI and plugged a cable to monitors headphone jack and dual 6.5mm to another input on the mixer. I hear sounds now the problem is there's buzzing sound and when I regulate volume knobs the buzzing either strengthens or gets weaker. There is no issues on both input channels using separately with either PC or Switch. As an output I just use my Sennheiser HD598. What can I do? How do I eliminate the buzzing? What may be the problem? There's also a lot of electrical cables around. Thanks in advance.

Are the cables shielded?

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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Just now, SunshineBob said:

These are the ones I'm using. https://www.amazon.co.uk/gp/product/B07CKC2YG9/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

Hm, says they're shielded. As r4tch3t said, what frequency is the buzzing noise? You may have a ground loop issue

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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If you want you can invest in a multimeter. It might help in the future, you can get one here: https://www.amazon.co.uk/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=multimeter

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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1 minute ago, Derkoli said:

If you want you can invest in a multimeter. It might help in the future, you can get one here: https://www.amazon.co.uk/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=multimeter

It's kind of similar I just checked in youtube. It's more like 50hz buzz.

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Probs a ground loop issue then. try plugging your monitor into a different plug on a different loop in your house.

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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1 minute ago, Derkoli said:

Probs a ground loop issue then. try plugging your monitor into a different plug on a different loop in your house.

Will try thanks! I also ordered this in hopes that it will help https://www.amazon.co.uk/gp/product/B01IETQQQK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

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Happy to help ?

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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2 hours ago, SunshineBob said:

Plugging it in into a different sockets didn't help :( 

 

Odd. Sorry it didnt fix it :(

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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Atleast i helped a little bit. And fingers crossed it will :)

LTT's Resident Porsche fanboy and nutjob Audiophile.

 

Main speaker setup is now;

 

Mini DSP SHD Studio -> 2x Mola Mola Tambaqui DAC's (fed by AES/EBU, one feeds the left sub and main, the other feeds the right side) -> 2x Neumann KH420 + 2x Neumann KH870

 

(Having a totally seperate DAC for each channel is game changing for sound quality)

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