Quartz and Rochelle Salt Contact Microphones

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Please buy some contact mics from me I am broke:
metalmarshmallow.com/product.php?product_id=16
This is the preamp I use in the video:
metalmarshmallow.com/product.php?product_id=29
Steve Mould's video:
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wcJXA8IqYl8.html
Collin's Lab (Make) video:
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-K3G2QM5a-9U.html
0:00 Quartz Crystal Microphone
3:33 Growing Rochelle Salt Crystal
6:16 Rochelle Salt Crystal Microphone
8:04 Quartz vs Rochelle Salt Comparison
10:31 Best Recording with Rochelle Salt

Опубликовано:

2 ноя 2023

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Комментарии : 45

@robertoraineriseith Месяц назад

Just received mine and tested it with a Schertler Mixer against some older C-Ducer and Barcus Berry contact mics recording a wristwatch whose sound is almost imperceptible to the human ear: i'm blown away from the sensibility and audio quality of the MM Pro! Even with the gain on the Schertler and the MM Pro at max noise was almost inaudible. Great work man!

@chemicalvamp 22 дня назад

Sodium carbonate is sold as washing soda. Also the thickness of the quartz slice determines its frequency, thick is low, thin is higher frequency. "Crystals go to War 1943" has a really nice explanation of this.

@guitfidle Месяц назад

If you out the pickup closer to the bridge you can get a lot bigger signal output and a more even sound. Where you have it stuck, it picks up the high E more than the rest.

@SugarClass Месяц назад

Super thorough & easy to follow from test to test Great work putting all this together, man!

@Jononor Месяц назад

Fantastic video! Excellent description of the experiments, practical solutions for connecting the crystalaro audio input and excellent quantification of the performance. I think it does sound rather good :)

@retrosnips6409 7 месяцев назад

Super interesting! Thank you for going to such effort in the name of crystal transducers!

@SianaGearz Месяц назад

Steve Mould science feud, let's go!

@dornauge1995 Месяц назад

actually the most interesting video i saw in a while.... thank you for this :) im currently researching what crystals could actually do used in "grounding boxes" in your Hifi system ...

@--AP-- 4 месяца назад

Plot twist: the whole video was recorded on a table salt microphone attached to the mountain you're standing on.

@mirzahosein2261 3 месяца назад

You are great scientist and teacher, thanks for sharing your works( i am from Iran)

@SidneyJamesXBL 8 месяцев назад

This was a really interesting video, thanks for posting it!

@kalipayne4688 4 месяца назад

Thanks friend. I loved the explanation and the process

@diegoftorrent 7 месяцев назад

Hahaha! Very nice video Bro!!!! Congratz

@mctavishmcardle6906 8 месяцев назад

was ready to not believe it until you tested the lucky rock. very cool!

@metalmarshmallowllc 8 месяцев назад

Further evidence of the rock's luckiness 🧿😀

@pomontty 2 месяца назад

amo tus videos

@triboluminiscencia_ 8 месяцев назад

Love that shirt, need more MM merch.

@metalmarshmallowllc 8 месяцев назад

I've been thinking about it -- He everybody, upvote this comment if you want MM merch!

@kareemelabkary7611 4 месяца назад

broo how is ur channel still small, your content is awesome! 😳 I hope ur channel gets more attention 💖

@metalmarshmallowllc 4 месяца назад

Aw thanks! Glad you like the videos!

@metalmarshmallowllc 8 месяцев назад

@SteveMould was wrong! Wrong wrong wrong wrong!!

@markg1051 8 месяцев назад

Feeling better now that you got that out of you, hmmm?😃

@rr-fn5bs Месяц назад

i thought it sounded good at the end. id be interested in hearing it from a crystal mic placed inside inside the guitar sound hole

@sr3d-microphones 8 месяцев назад

I thought it was a great video and enjoyed that humour, I think you're quite the genius to be honest.

@metalmarshmallowllc 8 месяцев назад

Aw, thanks! May the light of the eternal crystal shine forever upon you

@bradyboettcher2337 8 месяцев назад

The final video sounded great! By the way, from your blogs I haven't seen any mention of open sourcing the MM DIY circuit schematics, would you consider this for makers trying to put this module in their own PCBs? I completely understand if you're keeping it proprietary though!

@metalmarshmallowllc 8 месяцев назад

Thanks, I have thought about open sourcing it, but for now I haven't

@PhantomPvPz 17 часов назад

This guy is so cool

@PhantomPvPz 17 часов назад

Guitar at the end was fire

@pmfalcman 8 месяцев назад

Clever. Maybe try to cut flat slice out of the rochelle salt? Along the cristal's plane. I'd try this :)

@metalmarshmallowllc 8 месяцев назад

Its very crumbly. In one of the timelapses you can see it growing in layers; I wonder if you could control the process to grow a single layer.

@guitfidle Месяц назад

Have you tried slicing the rochelle salt crystals?

@pierpa_76pierpaolo 8 месяцев назад

Brilliant!!! One quartz two blades and it works like a microphone. Is this idea good for surface contact mic (wood, plastic, masonry, metal, etc.)? let me know. Thank you very much.

@metalmarshmallowllc 8 месяцев назад

I think it will work on wood, plastic, etc, but as you can hear it is not 'good', regular brass piezo discs are much better.

@pierpa_76pierpaolo 8 месяцев назад

@@metalmarshmallowllc OK. I will try two tests. But how can I record noise in depth in a professional way?

@metalmarshmallowllc 8 месяцев назад

@@pierpa_76pierpaolo per misurare rumore -- nel video uso software che ho scrito io, si trova qui: metalmarshmallow.com/widget.php?w=Advanced_Diagnostics ho anche visto altri usasndo software chiamato 'REW', lo si trova qui: www.roomeqwizard.com Mi dispace perche non parlo l'italiano bene!

@pierpa_76pierpaolo 8 месяцев назад

@@metalmarshmallowllc Perfetto. Interessante. Intanto ho scaricato il software e poi domani lo provo (Perfect. Interesting. In the meantime, I downloaded the software and then I will try it tomorrow ). 👍

@diegoftorrent 7 месяцев назад

Bro, you just need to try add a membrane, like a plastic or balloon.

@Levibetz 8 месяцев назад

Now if only you could grow these crystals on something like a brass disk hummm haha

@metalmarshmallowllc 8 месяцев назад

haha, doh! 🤦‍♂

@Levibetz 8 месяцев назад

@@metalmarshmallowllc Now that being said, imagine if you used that capability to integrate the crystal into an instrument. Like a guitar with conductive paint (or epoxy), crystals grown right on top, and then wired. You could maybe cover much more surface area than a piezo typically could.

@pierpa_76pierpaolo 8 месяцев назад

Is it quartz or Rochelle salt ? Or did you get a "crystal" of Rochelle salt (but it has the same yield as quartz) ? I need to understand since I don't speak English. 🤬

@metalmarshmallowllc 8 месяцев назад

I just added 'chapters' to the video. The first three and a half minutes show quartz only. The next four and a half minutes show rochelle salt only. The remainder of the video compares both, and the final guitar recording uses rochelle salt. I hope that helps. What is your language?

@pierpa_76pierpaolo 8 месяцев назад

@@metalmarshmallowllc Okay. Thank you. I'm Italian.