Why is my microphone noisy? Understanding self-noise

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Why is my microphone noisy? Understanding self-noise

Рет қаралды 6,412

Күн бұрын

▶︎Chapters◀︎
00:00 - Intro
00:26 - An analogy
00:53 - Self-noise or equivalent noise level
01:11 - Acoustic vs electric self-noise
01:36 - A-Weighting and CCIR-Weighting (Q-Peak)
02:01 - How to measure self-noise
02:25 - The better the mic, the harder the self-noise measurement
03:02 - Nerd fact: The lowest possible self-noise
03:26 - Why low self-noise matters
04:09 - Self-noise comparison and samples
05:18 - Outro
▶︎About us◀︎
Hi, we are LEWITT, a microphone manufacturer from Austria, Vienna, and we believe that great sound is for everyone. For us, it is key that our mics help you to accomplish your ambitions easily and with better sound than ever before.
Visit our website here:
www.lewitt-audio.com/
Mics in the video:
MTP 440 DM (dynamic instrument): lewitt.link/yt-mtp-440-dm
LCT 540 S (large-diaphragm condenser): lewitt.link/yt-lct-540-s
▶︎Links◀︎
Visit our blog for more:
www.lewitt-audio.com/blog/
Follow us on our social media channels:
/ lewittaudio
/ lewitt.audio
/ lewitt.audio
/ lewittaudio

Пікірлер: 50

@LEWITT-audio 3 жыл бұрын

If you have any questions regarding recording or microphones, please NEVER hesitate to ask!

@RolandSater Жыл бұрын

Wich Lewitt microphones has the lowest noise floor? Currently struggling to record really soft sounds with my beloved LCT 240 and a recent Presonus. Sounds are lost behind the noise floor. I dont know what mic and preamp i need to be able to record really quiet sounds. I need close and room recording of stuff as quiet as a pen softly hitting a table, i mean really low signals. Thank you Lewitt!.

@LEWITT-audio Жыл бұрын

@@RolandSater The LCT 540 S has the lowest self-noise, but you would also get great results with an LCT 440 PURE.

@RolandSater Жыл бұрын

@@LEWITT-audio Thank you. So if the LCT Pure has a 87 dB signal to noise ratio and the LCT450 has 90db, what is the signal to noise ratio with the LCT240? it's not mentioned on all the retailers i usually use, but its mentioned for the 450 and the Pure. :)

@RolandSater Жыл бұрын

btw considering dynamic mics as well for the close mics. But i will prob need proper preamps.

@LEWITT-audio Жыл бұрын

@@RolandSater You can always calculate the SNR (signal to noise ratio) if you know the self-noise (SN) of the mic. 1 Pa (94 dBSPL) - self noise (SN) = SNR. Hope that helps

@HK-mu3cl Жыл бұрын

The depth of the 540s is quite amazing! I love LEWITT!

@LEWITT-audio Жыл бұрын

Thanks for the kind words

@iaininberlin 3 жыл бұрын

I just got an LCT540s last week and have been enjoying recording extremely quiet sounds. AB'd against an AKG C414 XLS (already a very low quoted self-noise of 6dB-A) recording rubbing my hands together and then level matching and amplifying those recordings, the AKG is noticeably noisier. The 2 decibel advantage makes a difference! The Lewitt is also more sensitive so less amplification is necessary and preamp noise becomes less of a factor.

@WarrenHenry 3 жыл бұрын

More great information guys! Kudos👏🏾

@bobbykanemusictube 3 жыл бұрын

A seriously great explanation. I dig it.

@MagnusCrimson 2 жыл бұрын

I just got a Lct 441 flex and im so help with the sound it delivers. Thank you very much, Lewitt ! =)

@LEWITT-audio 2 жыл бұрын

And thank YOU for choosing our products! 💚

@GRMS_Ian 3 жыл бұрын

Thanks team LEWITT for the very clear and interesting discussion. I love the way you guys roll! PS I need one of those noiseless chambers for my drum kit only bigger ... No ... stop... Scratch that ... because then I could not make myself heard. Ha Ha.

@jhudstudio4144 2 жыл бұрын

Great Video! I wished I woudl have knowned about self noise a long while back.

@LEWITT-audio 2 жыл бұрын

We're glad it was helpful!

@MrEmptyhead 3 жыл бұрын

Love the delivery, you could start a nerdy comedy show ..... hang on, you are already. Great stuff, thanks.

@andivax 3 жыл бұрын

usefull info!

@Rod-Wheeler 3 жыл бұрын

Love your videos❤! Question ,Is the self noise of a microphone and the preamp added together or is the most prominent noise of the two the final dominant factor?

@LEWITT-audio 3 жыл бұрын

With dynamic mics, the preamp dominates the noise performance (EIN), with condensers, it‘s your mic that dominates the noise performance.

@Rod-Wheeler 3 жыл бұрын

@@LEWITT-audio Thank You!

@freddiekay 2 жыл бұрын

@@LEWITT-audio A company that offers real feedback in the community. Get ready to take my money!

@Kineticartist 2 жыл бұрын

so good lewitt my kind of nerds

@LEWITT-audio 2 жыл бұрын

Audio nerds are the best kind of nerds 🤓

@LemaireNico 3 жыл бұрын

Good video! So using room mikes would only make sense if you are recording something loud(er)? Like drums or full band. Or perhaps even with the self noise it could be used to add something extra?

@mastershake9374 3 жыл бұрын

Usually room mics are used to enhance the close mics and add a spacial Component. the noise won't be as obvious. It really depends on the genre though.

@LEWITT-audio 3 жыл бұрын

@@mastershake9374 Hi thx so much for commenting. You're right, the room mics are there for the spacial component, but actually the further away the mic is from the source, the more relevant the self-noise performance of your microphone gets.

@luiginica Жыл бұрын

Thank you for the video! What microphone did you used while shooting this video? :)

@LEWITT-audio Жыл бұрын

Hi Luigi, glad you like it. It was the LEWITT LCT 540 S studio microphone ;)

@stanislasbeaufils683 3 жыл бұрын

I play classical guitar and I would like to know what you recommend between a large diaphragm or small diaphragm microphone knowing that my room is not treated and that it is not well soundproofed (Lewitt 140 Air or Lewitt 240 Pro). Thanks in advance,

@LEWITT-audio 3 жыл бұрын

The LCT 140 AIR is designed for acoustic guitar recordings, so it would be the better overall choice.

@YamenNazer 3 жыл бұрын

Omg how far is the mic from the guitar at 4:09? And what gears did you use in the recording process? Is it raw or processed sound?

@LEWITT-audio 3 жыл бұрын

Hi, the mics were about 1.5-2 meters away from the source to demonstrate how the self-noise can affect the recording. Usually, we go directly into our Metric Halo and add a minimum of compression, but otherwise, we tend to keep them unprocessed to hear the sound quality of our mics. Hope that helps.

@YamenNazer 3 жыл бұрын

Thank you very much for your reply❤❤❤

@amalgami Жыл бұрын

self noise is only useful till the mic sensitivity does not interfere i.e. high sensitivity of mic in a less treated room with a noise floor of 40 db and above will negatively effect the self noise of a mic. My question is, will LCT 441 flex or 440 show noise issues in a semi treated environment?. Since i am on a lookout to replace my 14db self noise condensor microphone. Thanks

@LEWITT-audio Жыл бұрын

Practically speaking, the self-noise of 14 dB of your current microphone may become an issue if you heavily compress the signal afterwards or layer many signal with that noise figure. Fact is, that with an LCT 441 FLEX or LCT 440 PURE, self-noise will never be an issue. Hope that answers your question.

@prinson6511 3 жыл бұрын

my lct 240 pro makes like a low end kinda noise while recording ! my room is pretty quite and also there is no electrical interference ! gets me really frustrated cleaning up the noise in every recording ! tried isolating the mic as much as possible ,also tried taking it in different rooms but the low end noise kinda remains the same ! first i thought it might be the self noise of -19dba , but i think thats not the problem, cause the mic you guys tested with 25dba of noise sound quiter in the raw recordings it self. what might be the problem ? can cables make such a noise ? or is it the interface ? (btw is use a presonus audiobox96 connected to my laptop. any kind of help wud be awesome !😬

@LEWITT-audio 3 жыл бұрын

Hi there! Thanks for getting in touch. Please contact our support team at support@lewitt-audio.com and send them a sound sample of your issue. They will be happy to help 😀

@grunge2012 2 жыл бұрын

for 10$ ill help ya out with any questions u have in full paragraphs

@Seitan-enjoyer 3 жыл бұрын

If I have an untreated room, how important is the self-noise of the mic? Or does the room even matter?

@LEWITT-audio 3 жыл бұрын

Great question! As you can hear in the video, it’s rather about how far you’re away from your mic. The further away from your mic the source is, the more relevant the self-noise performance gets. This is true for every situation, except loud stage environments. There, self-noise is definitely less important.

@NVK85 Жыл бұрын

I have Zoom H5 and can hear self noise in earphones. I checked a-weigthing of it and it says -120 dBu ( not dBA). I don't understand what's the difference =/

@LEWITT-audio Жыл бұрын

What's your microphone?

@NVK85 Жыл бұрын

@@LEWITT-audio standard XYH-5 capsule that comes with ZOOM H5 from factory.

@LEWITT-audio Жыл бұрын

It looks like the Equivalent Input Noise for the Zoom H5 is -120 dBu. This is a different measurement than self-noise. There are different ways to measure noise so you would need to make sure you're comparing the same spec with the same type of units.