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Recommendations on a quality clip on NC microphone?

I have to work in very noisy environments such as near construction sites, near very loud music or highways, and due to the nature of my job I need to be in a lot of online meetings.

I need a clip microphone with a really good noise cancellation feature that would filter all of the noise out leaving only my voice.

Any recommendations? I’ve found Hollyland Lark M2 but it seems it lets a lot of noise through anyway.

Max_P ,
@Max_P@lemmy.max-p.me avatar

A carbon microphone really close to your mouth might do alright, something like an aviation headset? Those are made to communicate in really loud planes, so that should do well. Doesn’t sound amazing, but quite intelligible.

Otherwise there’s stuff like RTX Voice and RNnoise if you carry a computer and not actually on the field walking around.

Walking_coffin ,

As blackstrat said, a commentator headset-microphone might be the thing you need if you ever have the money to spend on it. I could give you a good recommendation if you need one but the headset without anything else costs around $3k US iirc. That’s without the needed cable and DAC. Think around $5k US for the whole thing. It is really impressive because no matter how much shouting or loud noise there is right next to you, you cannot hear it if you want to filter it out by decreasing the noise gate.

Do you need to have such a high end headset-microphone? Probably not. A good microphone, adjusted audio input settings and mixing should be well enough. However, if you do feel like you really need a luxurious microphone then tell me and I’ll find the referrence for it in a bit.

vk6flab ,
@vk6flab@lemmy.radio avatar

I suspect that your success rate will be very low. Bone conduction microphones might be your best bet.

Fundamentally a microphone doesn’t know the difference between “good” sound and “bad” sound.

Most noise cancelling solutions are based around the idea that nearby sound is good and distant sound is bad.

It differentiate between the two by using the fact that it takes time for sound to travel.

If you have two identical microphones, you can set them up so that you talk directly into one, but not the other.

Any environmental sounds are picked up by both and used to cancel it - sometimes in software, other times just by reversing the microphone polarity.

Bone conduction microphones get their signal from physical contact with the audio source, your body.

Source: I’ve done a little bit of audio recording over the years in and outside of studios. My information might be incomplete and out of date. YMMV.

1984 ,
@1984@lemmy.today avatar

The human voice is a different frequency then construction noise though. Isn’t it possible to build a microphone who filters out other frequencies? Maybe even customized to the users frequency?

I know nothing about this, just asking.

vk6flab ,
@vk6flab@lemmy.radio avatar

Sadly not. Form an audio frequency perspective, noise is many different frequencies. The human voice pretty much matches human hearing.

A voice is not one frequency, that’s a tone. We’ve constructed systems that throw away much of the voice frequencies whilst still being understandable. Telephone calls, digital radio communication, etc.

That’s not to reduce noise, it’s to cram more calls across the same link. There’s a side effect that does reduce noise to some extent, but not significant enough to remove construction noise.

corsicanguppy ,

Oh! A clip-on microphone; not a clip on [a] microphone.

It’s so confusing when you don’t use English.

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