*Ferrite bead on charging cable* kzread.info/dash/bejne/aal8rtauiLrMqqg.html

You aren't realizing that the noise your mic is picking up in both instances is ambient room noise. A choke will not reduce this. When you switched to your "high quality" mic. We can plainly see that the mic is more sensitive and thus looks like it has more gain... It pics up ambient noise more readily. A choke is to stop RF or EMC/EMI. It's about interference reduction. They're for that type of noise.. Not audible audio noise.

@Mj-bg2uj

Жыл бұрын

I've been trying to record using my iPhone 13 directly from my mixer using special line to mic cables .. it sounds really clear in regards to background noise except for this damn electrical hum.. I've tried everything with volumes , gain levels , diffent outlets, different cables and tried ferrite today and it didn't make any difference.. is there anything else I can try ?

@Scrufboy

Жыл бұрын

@@Mj-bg2uj You have to troubleshoot the whole thing... Perhaps the noise is being introduced by a component. Once it is on the line, you can't remove it without knowing where it comes from. You might have AC mains hum coming through the mixer. I can't say for sure though as I can't do the troubleshooting.

@Mj-bg2uj

Жыл бұрын

@@Scrufboy understood thank you .. I've literally done all kinds of process of elimination and the only thing that changes the hum is when the dimmer switch in the room for the lights is turned on / off ... The previous homeowner installed a dimmer but used non dimmer bulbs so the lights are either on or off .. I'm going to have an electrician remove it

@Scrufboy

Жыл бұрын

@@Mj-bg2uj Yeah, that sounds good. Seems the noise is on the mains... But it comes from the dimmer you say.... You can swap that out yourself. Hit the breaker, wire in a standard switch. Or be safe and have the electrician do it. You will probably be OK after that. Hope it works out for you.

@Mj-bg2uj

Жыл бұрын

@@Scrufboy thank you! Yeah I've had issues in the back room before .. i plugged an electric guitar and amp in and there was so much hum that it was virtually unplayable.. the electrician came and put the room on a different phase and it sounded 90% better .. if I play acoustic guitar with the PA i can't hear the hum but when I try to record directly from the mixer the phone is picking it up which sucks bc other than that noise it's really clean .. if I record while I'm not using the mixer it just becomes too much background noise and clutter .. I'm going to have the dimmer removed and hope for the best.. thanks again for the help ! Appreciate it

Excellent! Thanks very much! I liked that you left the plug in place not to add new variables. I believe the second mic is a capacitive one and it already uses a balanced connection. Perhaps the first one is a simple electret with two wires. I have some of those cheap mics/wireless systems and I get a lot of noise. I'll reduce the cable lengths and add the ferrite core. Once again, Thanks!!!

@TechsScience

3 жыл бұрын

🙂

You should try this with a Fourier transform to the frequency domain

This is not a scientific process. You are not addressing the issue that the ferrite cores are designed to mitigate.

Thanks. So is there any other way to take out noise from the mic and other cables????

Wow

What mix type is that ferrite core in the video?

thx

Should it be placed on the other end? And I think you should make sure every time you are producing same amplitude... 🤔

@TechsScience

2 жыл бұрын

No matter where you place the result don't get affected

Bro you should've recorded the noise floor, not the sound

I just installed an android unit in my car and they tell me that when I speak they hear a whistling sound that varies with the engine speed. It should be the alternator. Do you think the ferrite on the power supply of the android unit can fix the situation? And could I put one on the microphone cable too? Thank you

@TechsScience

Ай бұрын

No, I don't think the ferrite on power supply of android can fix it since The noise is captured by the Mic You will have to filter it at Mic or At amplifier, filtering the power supply will not work

@pierfabio75

Ай бұрын

@@TechsScience ok so ferrite on the mic cable

As it's a microphone it should be placed on the other end of the cable.

@TechsScience

3 жыл бұрын

No matter where you place the result will be same

@jonsmith1809

3 жыл бұрын

@@TechsScience cool. Do you have a video showing the practical experiment that confirms the theory?

@TechsScience

3 жыл бұрын

While I was doing this experiment I had once placed the choke around Jack the result was same

helo

Hello

we have same phones ahah

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