Re: Top secret Earthworks M50 capsule, or the Thunder Capsule!
Exactly¡ Schoeps talks about being able to slow down playback on the extended frequency range mics to allow you to cleanly hear pitched down ultrasonics.?
IMHO you can grab infrasonic sound with a sealed woofer in an enclosure. ? For ¡°accuracy required¡° infrasonic measurements, ?the industry uses accelerometers geophones, and seismometers. ? Best Regards,
Jules Ryckebusch?
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On Mar 6, 2024, at 16:27, Jerry Lee Marcel <jerryleemarcel@...> wrote:
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"CMC 6 Uxt - extends the high-frequency response of all
¡°axially addressed¡± (end-address) capsules to ~40kHz."
How can increasing the HF response help with infrasonics?
Subsonic is an aviation term.
Le 06/03/2024 ¨¤ 14:36, francois via
groups.io a ¨¦crit?:
mine is the xt linear but I guess a regular cmc6 can be also
modified to record subsonic
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Re: Top secret Earthworks M50 capsule, or the Thunder Capsule!
"CMC 6 Uxt - extends the high-frequency response of all
¡°axially addressed¡± (end-address) capsules to ~40kHz."
How can increasing the HF response help with infrasonics?
Subsonic is an aviation term.
Le 06/03/2024 ¨¤ 14:36, francois via
groups.io a ¨¦crit?:
toggle quoted message
Show quoted text
mine is the xt linear but I guess a regular cmc6 can be also
modified to record subsonic
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Re: Top secret Earthworks M50 capsule, or the Thunder Capsule!
mine is the xt linear but I guess a regular cmc6 can be also modified to record subsonic
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High grade connectors are often listed under Aviation Connector. Like LEMO, M12, XSn or YCn....
I've never heard "Foster Jacks", I know these radio connectors only as XSnn, ofthe the 4pol XS12 is used for the mic and these are listed?as aviation connectors too.
Am Mi., 6. M?rz 2024 um 12:07?Uhr schrieb Richards < jrichards@...>:
like an 'aircraft' connector ...
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I believe these are also called "Foster Plugs"? and "Foster Jacks" - as in 4 or 8 pin Foster Jacks found on amateur radio transceivers.? (I am NOT being critical - just giving another name that might make it easy to find and acquire same.)? James
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like an 'aircraft' connector ...
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I believe these are also called "Foster Plugs" and "Foster Jacks" - as in 4 or 8 pin Foster Jacks found on amateur radio transceivers. (I am NOT being critical - just giving another name that might make it easy to find and acquire same.) James
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Re: Top secret Earthworks M50 capsule, or the Thunder Capsule!
My understanding is that the XT has an extended HF response (up to 40kHz). When down-sampled, the LF limit of 20Hz becomes 10 or 5 Hz, but it does not have the capability of recording 10Hz or 5Hz native signals.
?
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Re: Top secret Earthworks M50 capsule, or the Thunder Capsule!
It's a special order from Schoeps done on demand. Then you have to use the cut 1 anytime you are not recording elephants or tortoise?
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Thanks for the replies everyone.? Yes, I already have an "extra" XYH-5 capsule, so was hoping it would be easy to use... seems not.
Main reasons I wanted to go this route were:?
1) I'm already kind of out of my depth on the sampler part of the project, so wanted to use a "simple" approach for the mic.
2) I wanted an excuse to tear down the Zoom mic
3) I have a knack for making projects over complicated :-)
Seriously though, I do think the whole concept of making mic units interchangeable like camera lenses is pretty cool -- too bad Zoom is keeping the interface proprietary.
Based on the replies I'm going to proceed with the sampler part of the project using a simple mono mic until I get that part to where I want it.? Then I'll revisit a better mic implementation.
@Johan: about the project - I am trying to re-work a device called the MicroGranny -- it's a sampler that allows the samples to be manipulated with granular synthesis algorithms. The original is cool, but very lo-fi (8bit mono) and has a really clunky file management system due to the limitations of the hardware 10 years ago. (It was based on the Atmega chip - essentially an Arduino Uno.)
Cheers!
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Top secret Earthworks M50 capsule, or the Thunder Capsule!
Francois:
>The Schoeps cmc-6xt can be configured to record subsonic? >https://schoeps.de/en/products/colette/microphone-amplifiers/cmc-6xt.html
Low cut filter 20 Hz, 12 dB/oct.
How do you remove the highpass 12 dB/octave @ 20 Hz ?
------------- Best regards, Goran Finnberg The Mastering Room AB Goteborg Sweden E-mail: mastering@... Learn from the mistakes of others, you can never live long enough to make them all yourself.??? -?? John Luther (\__/) (='.'=) (")_(") Pyret, Ranglet, Aron, VovVov, Nero, Smurfen & Pussin:RIP
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Hi. Unless you already have a Zoom H5 or H6 recorder that you want to plug into, I would pick a common locking multi-pin connector - like an or the already mentioned 5-pin XLR, or similar, as the interface. If this was 20 years ago, I'd also suggest a 9 or 15 pin??, but they don't seem so common any more.
If you're still keen on the Zoom approach, maybe you could score a deal on a bricked Zoom H5 or 6 that someone's selling for parts. They don't like being dropped.... don't ask how I know this. That would give you parts and something sacrificial to reverse-engineer.
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I've seen a mod for the mic unit that is for the 3,5mm jack to increase?the pip power. Had done it a while back and this mod needs to desolder the tiniest smd parts. Have not noticed a big change. Not sure?if I've lost the link or the website is dead. Beside that I've seen no technical specs or projects on these modules.?
Am Di., 5. M?rz 2024 um 17:52?Uhr schrieb blu58spider < john_na2@...>:
Newbie here, so sorry if I missed previous discussion on this topic. (Yes, it tried searching but didn¡¯t find anything¡)
I am working on a project to build a hand-held stereo sample recorder/player, and I thought it would be cool to start with a Zoom XYH-5 mic unit for the input.? I like the idea of being to easily swap mics - in future I¡¯d like to see if I can improve the performance of the H-5 with homemade mics.? However, I have discovered that the interface is not simple - the mic assembly has built in pre-amps, and the ten element card edge connector seems to be doing more than just carrying audio and (maybe?) phantom power. ?
So, I am trying to figure out the best way to reverse engineer the interface between the mics and the recorder.? Wondering if anyone here as already done this and/or has any pointers to Zoom technical docs? ?(Their tech support was decidedly unhelpful. I guess the slogan ¡°we are for makers¡± doesn¡¯t include hardware makers :-) )?
Thanks for any pointers!
John
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For your project I'm not sure going the Zoom way is the easiest. You find a lot of easier builts in this group, and swapping can be done based on standard XLR connectors (XLR3 or 5). This makes up for a more robust connection and without the guesswork.
Curious about your sample recorder! Johan
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Newbie here, so sorry if I missed previous discussion on this topic. (Yes, it tried searching but didn¡¯t find anything¡)
I am working on a project to build a hand-held stereo sample recorder/player, and I thought it would be cool to start with a Zoom XYH-5 mic unit for the input. ?I like the idea of being to easily swap mics - in future I¡¯d like to see if I can improve the performance of the H-5 with homemade mics. ?However, I have discovered that the interface is not simple - the mic assembly has built in pre-amps, and the ten element card edge connector seems to be doing more than just carrying audio and (maybe?) phantom power. ?
So, I am trying to figure out the best way to reverse engineer the interface between the mics and the recorder. ?Wondering if anyone here as already done this and/or has any pointers to Zoom technical docs? ?(Their tech support was decidedly unhelpful. I guess the slogan ¡°we are for makers¡± doesn¡¯t include hardware makers :-) )?
Thanks for any pointers!
John
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They mostly are. Check out several of the commercial ones for ideas. Interestingly, 8 capsules?is not quite 2nd order, in theory you need 9. Whatever geometry you end up with. The Sparta Arrary2SH?plugin lets you assign the altitude and azimuth?of the capsules to the encoder.?
Jules
Thank you, what is the geometric position of the 8 capsules ? are they still based on a tetrahedron ?
-- Best Regards,
Jules Ryckebusch
214 399 0931
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Re: Top secret Earthworks M50 capsule, or the Thunder Capsule!
The Schoeps cmc-6xt can be configured to record subsonic?
?
just have to be careful with them in the rain
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Thank you, what is the geometric position of the 8 capsules ? are they still based on a tetrahedron ?
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Hi Casey, Yes that's exactly what I did. I'm sure someone must have done it but couldn't find a reference anywhere. It's a very pleasing use of phantom power symmetry. I will match front facing capsules of each figure 8 and will use as Blumlein, so front to back differences shouldn't be too noticeable, I think? I got interested puttining together a non-ribbon Blumlein mic through adapting Sony F99 cardioid stereo mics.? These are inexpensive and plentiful on ebay, have well made parts, but have a terrible realisation of stereo as the two capsules are quite narrow cardoids and are at 180 degrees. They make a nice figure 8, when the capsules are joined, though. I did toy with using it as a multipattern mic, switched, almost as you show, but to one balanced signal, but the Sony F96 and F98 omni and cardiod mics of the same family are better all round. Easy to convert to balanced out as well.??  
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I assume this is what you did, but in case it's useful . As others have said on this board,
it's important that the capsules be closely level matched to get a
good null, and that's unlikely in practice unless you try lots and
lots of capsules, so I also use a so I can get individual channels for
balancing in the DAW later. But the combo version also works well
enough for most of my uses.
-Casey
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I should add, as my last post was a bit confusing, that the capsules are wired with capsule 1+? to pin 2 and capsule 2+? to pin 3,? which gives the right bias.
Richard
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Hi, I've been a long -time lurker. I thought I would post up something I'm working on.? I've been interested in getting a small, inexpensive Blumlein pair together for recording piano and thought I would try and see if the SimpleP48 works with two electret capsules, out of phase, on one xlr, with two sets of symmetrical capacitors and resistors. It works!? I'm using PUI AUM-4537L-HD-R cardioids with 4.7uF caps and 87KOhms resistors. I'm going to try it out with PUI AUM 5241L next, which should be more suitable in terms of coping with the signal from a piano. Richard ?? 
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underwood
musgit