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alt / alt.audio.pro.live-sound / Re: recording low frequency sound with a microphone

SubjectAuthor
* Re: recording low frequency sound with a microphoneJuha Silvennoinen
`- Re: recording low frequency sound with a microphoneChris K-Man (Zickcermacity)

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Subject: Re: recording low frequency sound with a microphone
From: Juha Silvennoinen
Newsgroups: alt.audio.pro.live-sound
Date: Fri, 4 Aug 2023 09:44 UTC
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Newsgroups: alt.audio.pro.live-sound
Date: Fri, 4 Aug 2023 02:44:47 -0700 (PDT)
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Subject: Re: recording low frequency sound with a microphone
From: ggogjuha1@gmail.com (Juha Silvennoinen)
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On Wednesday, September 26, 2012 at 2:52:38 AM UTC+2, Brian wrote:
> What type of microphone records at very low frequency.
> Often when playing movies there are very low frequency sounds heard on a
> sub woofer but the frequency seems to be very low for a microphone to
> capture.
>
> --
> Regards Brian

Hi Brian

I am not an expert but
- The microphone should have good frequency response in low frequencies. If the noise is only 30 db and the response is -25 db then the recording will show only 5 db. I am looking at SMALL DIAPHRAGM MICROPHONES.
look at https://www.neumann.com/en-en/homestudio-academy/
- Your app should record low frequencies. I have tried many apps and only Doldy app so far seems to record low frequencies in my smartphone. I dont know if it depnds on its codec which codes the analog to digital and stores to memory
- when playing the recorded sound I have noticed that my smart phone shows no sound in low frequencies. Its frequency response in low frequencies is -25 db. I have measured that the noise is at least 45 db but i hear only whisper which is about 20 db. So real sound 45 db minus response's affect -25 db gives 20 db which is whisper
- so I have to send the recorded sound to my pc. it has very good frequensy response. actually it emphasizes a bit the base sounds. Now i hear this disrurbing low prequeency soundound from Dolby recordings. I will check the other apps also in the same way

Try this

yours juha

Subject: Re: recording low frequency sound with a microphone
From: Chris K-Man (Zickcer
Newsgroups: alt.audio.pro.live-sound
Date: Sat, 30 Sep 2023 10:21 UTC
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Subject: Re: recording low frequency sound with a microphone
From: thekmanrocks@gmail.com (Chris K-Man (Zickcermacity))
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On Friday, August 4, 2023 at 5:44:49 AM UTC-4, Juha Silvennoinen wrote:
> On Wednesday, September 26, 2012 at 2:52:38 AM UTC+2, Brian wrote:
> > What type of microphone records at very low frequency.
> > Often when playing movies there are very low frequency sounds heard on a
> > sub woofer but the frequency seems to be very low for a microphone to
> > capture.
> >
> > --
> > Regards Brian
>
> Hi Brian
>
> I am not an expert but
> - The microphone should have good frequency response in low frequencies. If the noise is only 30 db and the response is -25 db then the recording will show only 5 db. I am looking at SMALL DIAPHRAGM MICROPHONES.
> look at https://www.neumann.com/en-en/homestudio-academy/
> - Your app should record low frequencies. I have tried many apps and only Doldy app so far seems to record low frequencies in my smartphone. I dont know if it depnds on its codec which codes the analog to digital and stores to memory
> - when playing the recorded sound I have noticed that my smart phone shows no sound in low frequencies. Its frequency response in low frequencies is -25 db. I have measured that the noise is at least 45 db but i hear only whisper which is about 20 db. So real sound 45 db minus response's affect -25 db gives 20 db which is whisper
> - so I have to send the recorded sound to my pc. it has very good frequensy response. actually it emphasizes a bit the base sounds. Now i hear this disrurbing low prequeency soundound from Dolby recordings. I will check the other apps also in the same way
>
> Try this
>
> yours juha
_________________

How about a kick drum mic?

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