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Here is some math….?

Thanks, Jules. Thanks for the uptake as it puts another broken microphone back into service. The original 9.7 mm electret capsule no longer sounded good (I suspect moisture damage) and this larger 16mm model sounds much better and just fits inside the grill/head. This will work well with my ham radio transceiver and with computer speech recognition software. / James \

Am 03.07.22 um 17:32 schrieb Richards:

I wish I knew more about the relationship between mic type, mic gain, recording volume, and resulting noise when recording at any substantial distance. It is easy to obtain quiet results when using the microphone up close and personal, in its "sweet spot" - but I get more noise the farther away the mic is from the source, and I wish I knew more about mic gain, input recording volume, and etc., to maximize the signal-to-noise ratio at longer recording distances; I wonder how my settings or approach should change. James

To paraphrase Robert Capa: If your recordings aren't good enough you
weren't not close enough.

If you are further away from the source you have no other choice than to
crank up the input gain.

There is no magic solution other than to the get least noisy microphones
and recorders you can afford.

Ralf

--
Ralf R. Radermacher - K?ln/Cologne, Germany
Blog :
Audio :
Web :

Re - recording noise ... "All three of those recorders ,,, have noise floors better than the microphones you'll be using."
__________________________________________

I wish I knew more about the relationship between mic type, mic gain, recording volume, and resulting noise when recording at any substantial distance. It is easy to obtain quiet results when using the microphone up close and personal, in its "sweet spot" - but I get more noise the farther away the mic is from the source, and I wish I knew more about mic gain, input recording volume, and etc., to maximize the signal-to-noise ratio at longer recording distances; I wonder how my settings or approach should change. James

--

Here's some detailed pics of one of my ribbon mics.



I would welcome comments on any visible problems.

There's one where it looks like the ribbon is not centred - but this may be the angle as it looks ok in the other pics.

there is some sag, but other pics online of these also shows some sag.

any thoughts?


(disclaimer, the terrible soldering on the transformer was the prev owner not me!)

Thanks Underwood for the comment!

My Zoom H6 produces some noise when I use phantom power. It increases when I switch from P24 to P48. Depending on the mics I use, this noise is very audible. I don't have these problems with the SoundDevices MixPre. Main reason I still not ordered the Zoom F3 and chose the MixPre instead of the F6. Not sure if this problem still exists.?

Awesome Jules! I was going to buy the tascam but I picked the zoom one instead. Are you able to post any audio examples? I'm really curious.

Thanks,
Jesse

Ah Ha ! That is IT.

I remember seeing that very image. What threw me off the trail is connecting Mic + to Drain. For some reason that seemed counterintuitive. THANK YOU for the super prompt reply - the soldering iron is still hot and I can finish the repair immediately! James

--

On Sun, Mar 13, 2022 at 12:05 PM, Jules Ryckebusch wrote:

I wired the Cardioid one as a "two wire" by connecting the Source to Ground
and? using the Drain lead as my connection point for PIP power.

_______________________________________________________

Good evening.

Could you please elaborate on what this means? I wish to replace a ruined original electret capsule with the JLI-160A11UC680, but it has three points (Source, Ground and Drain) and the microphone (original capsule) only has two leads (labeled + and -). Is there a way to wire the capsule for this type of microphone? (I once saw a diagram of this arrangement on the Internet, but I cannot find it now.)

Thank you. James

--

Hi everyone,

I bought a zoom h1n and I should have known for the price it's going to have a lot of self noise. I figured I would ask on the forum if anyone knew of a very quiet stereo recorder for $500 or less. If it has to be more I can save up. Also not sure how this would work but I want the sound to be as real 3d as possible. Seems like some are at 120 degrees. My goal is to record nature I'm the woods and other very quiet places.

Thanks,
Jesse

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You may have a slightly loose connection inside the mic, or possibly one of the components was damaged by soldering heat.

"Fix what you know is broken", though.? If your mixer has a bad power cable, you need to fix that first.

-Scott

Greetings.

Just yesterday I've assembled my LDC mic based on Arjay 1949's schematic of a two-board rig (main+voltage multiplier). I plugged to an external phantom power source and to PC via 3.5mm and it seems to have worked! I went back home and plugged it into my FX1202 mixer's preamp, but then I got a noticeable white noise coming from the mic line. The voice is barely audible through it.

Also I've encountered a strange side effect. My mixer occasionally lets out a humming sound due to faulty power supply cable. When that happens, the white noise from the mic slowly disappears. And vice versa: when I fiddle with the cable and hum goes away, the mic noise goes back in the same manner.

In the end, I had to fine-tune the mixer to get as less hum as possible. I've been using the mic for 3 hours during the local podcast, and my colleagues noted my recording was pretty good, yet with some background hum (again, induced by mixer itself).

Perhaps I'd open up the mic and check for whatever's causing this weird noise. But in any case, any help or advise would be much appreciated.

-- 
---- Scott Helmke ---- scott@... ---- (734) 604-9340 ----
"I have ceased distinguishing between the religious and the secular,
for everything is holy"  - Joe Henry

Greetings.

Just yesterday I've assembled my LDC mic based on Arjay 1949's schematic of a two-board rig (main+voltage multiplier). I plugged to an external phantom power source and to PC via 3.5mm and it seems to have worked! I went back home and plugged it into my FX1202 mixer's preamp, but then I got a noticeable white noise coming from the mic line. The voice is barely audible through it.

Also I've encountered a strange side effect. My mixer occasionally lets out a humming sound due to faulty power supply cable. When that happens, the white noise from the mic slowly disappears. And vice versa: when I fiddle with the cable and hum goes away, the mic noise goes back in the same manner.

In the end, I had to fine-tune the mixer to get as less hum as possible. I've been using the mic for 3 hours during the local podcast, and my colleagues noted my recording was pretty good, yet with some background hum (again, induced by mixer itself).

Perhaps I'd open up the mic and check for whatever's causing this weird noise. But in any case, any help or advise would be much appreciated.

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I've been thinking of making a pcb for a pencil style mic using the small neutrik transformers. I was thinking of using an opamp though. It would be easy enough to make one for a fet like a KM84.

The thing about pencil condensers is that every body you might use needs its own very specific size pcb - it's not like a large mic where you can usually fudge it and fit in a slightly different size board.

So maybe a pcb is not worth the effort.