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Gear / Technical Help => Microphones & Setup => Topic started by: b9audio on May 04, 2021, 03:34:43 AM

Title: Stereo microphone ruler
Post by: b9audio on May 04, 2021, 03:34:43 AM
Coming out with a stereo microphone setting ruler.
NOS, ORTF, XY90, XY120, PF(B9audio setting, 7cm, 110degree), Gerzon(5cm, 120degree), VR A for double FSM44V VR A format.
(https://scontent.ftpe7-3.fna.fbcdn.net/v/t1.6435-9/180069831_2126834110788376_6041306348362679743_n.jpg?_nc_cat=102&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=v7LyiRGhbDoAX8dJdCA&_nc_ht=scontent.ftpe7-3.fna&oh=4ab5cd3d3b836f5ea72ff810a17c7da3&oe=60B63E0E)
(https://scontent.ftpe7-2.fna.fbcdn.net/v/t1.6435-9/179928596_2126705327467921_5067491619269091665_n.jpg?_nc_cat=104&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=Z4ZD1bN-uxgAX-BKtLQ&_nc_ht=scontent.ftpe7-2.fna&oh=5740044d05c21f922e0fba4d7bf850fc&oe=60B62654)
Title: Re: Stereo microphone ruler
Post by: rocksuitcase on May 04, 2021, 10:03:06 AM
OMG! How much in USD?
I think several tapers on here would consider buying one.

Title: Re: Stereo microphone ruler
Post by: Gutbucket on May 04, 2021, 11:22:30 AM
Nice take on it with the use of the clear polycarbonate.  Elegant.

This obviously works for setup of side-address capsules, but will also work for end address capsules by squaring them up with the diaphragm line and arrow inside each mic circle.

If it doesn't clutter it up too much you might consider placing cm markings along one edge on future production runs, providing a useful measure for other near-spaced setups  or whatever else needs to be measured.
Title: Re: Stereo microphone ruler
Post by: heathen on May 04, 2021, 11:47:56 AM
That is really neat, and Gutbucket makes a great point (as usual) about the usefulness of centimeter markings.
Title: Re: Stereo microphone ruler
Post by: b9audio on May 04, 2021, 02:01:28 PM
Yes, I did consider this, but it may become too cumbersome. Maybe next version. The material is not polycarbonate, it is PMMA.
Title: Re: Stereo microphone ruler
Post by: Gutbucket on May 04, 2021, 04:32:46 PM
Oops I did it again. Forgive me for jumping in and suggesting alternate designs for your well-though-out and implemented equipment.

That's even better as PMMA (acrylic) tends to be harder and less prone to scratching than polycarbonate and likely etches/engraves better.
Title: Re: Stereo microphone ruler
Post by: b9audio on May 05, 2021, 12:13:45 AM
Oops I did it again. Forgive me for jumping in and suggesting alternate designs for your well-though-out and implemented equipment.

That's even better as PMMA (acrylic) tends to be harder and less prone to scratching than polycarbonate and likely etches/engraves better.

Gutbucket, you're pro. Your opinion is means a lot. I also wonder if it is a good choice to keep or to remove centimeter marking. At the end, I choose don't keep it. Worry it might confuse the user with a lot of marking, as the layout came out, it seems already kind of full of information.
Title: Re: Stereo microphone ruler
Post by: b9audio on May 05, 2021, 01:06:25 AM
Gutbucket, you're right, I am working to add centimeter marking.
Title: Re: Stereo microphone ruler
Post by: voltronic on May 05, 2021, 06:45:56 PM
This is a very cool idea for a product.

What is that mic array flanking the b9audio logo? I can't quite make it out, but it looks like 110 deg with very close spacing.

I'm going to follow Gutbucket's lead and offer a small suggestion for a future revision: You might consider condensing both of the X/Y arrangements and the Blumlein down to a single circle each, showing two diaphragms within the same circle. That arrangement is not always going to possible in practice, especially with side-address capsules next to each other, but that's the ideal. A manufacturing benefit is that you would be able to eliminate 3 circles from the bar and make it that much shorter, lowering your materials cost a bit.
Title: Re: Stereo microphone ruler
Post by: boa on May 05, 2021, 09:59:48 PM
That is really neat, and Gutbucket makes a great point (as usual) about the usefulness of centimeter markings.

I agree. I would buy one with cm markings today.
Title: Re: Stereo microphone ruler
Post by: b9audio on May 07, 2021, 03:01:50 AM
Revised edition. Centimeter marks, white printing.
(https://scontent.ftpe7-4.fna.fbcdn.net/v/t1.6435-9/182790570_2129201377218316_1627140958790134674_n.jpg?_nc_cat=101&ccb=1-3&_nc_sid=730e14&_nc_ohc=hRekYVMu5s8AX-0fgb3&_nc_ht=scontent.ftpe7-4.fna&oh=faba6cfbd1f6bb6ee839b256d69d47af&oe=60B8CA42)
Title: Re: Stereo microphone ruler
Post by: b9audio on May 07, 2021, 04:51:23 AM
It's here. Thank Gutbucket and all value comments.
(https://scontent.ftpe7-3.fna.fbcdn.net/v/t1.6435-9/182660965_2129246287213825_4046866722991219712_n.jpg?_nc_cat=103&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=0p4E2w5wUtEAX9gGnRB&_nc_ht=scontent.ftpe7-3.fna&oh=6a9639cef62e9bb27e2f12ba2ef35daf&oe=60BAFE82)
Title: Re: Stereo microphone ruler
Post by: b9audio on May 07, 2021, 05:12:15 AM
This is a very cool idea for a product.

What is that mic array flanking the b9audio logo? I can't quite make it out, but it looks like 110 deg with very close spacing.

I'm going to follow Gutbucket's lead and offer a small suggestion for a future revision: You might consider condensing both of the X/Y arrangements and the Blumlein down to a single circle each, showing two diaphragms within the same circle. That arrangement is not always going to possible in practice, especially with side-address capsules next to each other, but that's the ideal. A manufacturing benefit is that you would be able to eliminate 3 circles from the bar and make it that much shorter, lowering your materials cost a bit.

The Gerzon pair is based on this article:
https://www.soundonsound.com/techniques/gerzon-array
Title: Re: Stereo microphone ruler
Post by: Gutbucket on May 07, 2021, 09:41:55 AM
^ That's a particularly well written and informative article, compared to many explanations of stereo microphone setups found on the internet.  Thanks for the link.  I like that they go in depth and mention the application of shuffling (increased stereo widening applied to the lower frequencies) for coincident and close-near-spaced setups, as I find it helpful when using these arrangements for concert recording with significant ambient pickup (in contrast to close stereo-mic'ing, or as one part of a larger array)

Your VR A setup appears identical to X/Y 120.  Is that so?   Curious about that one.
Title: Re: Stereo microphone ruler
Post by: dactylus on May 07, 2021, 10:19:13 AM
It's here. Thank Gutbucket and all value comments.
(https://scontent.ftpe7-3.fna.fbcdn.net/v/t1.6435-9/182660965_2129246287213825_4046866722991219712_n.jpg?_nc_cat=103&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=0p4E2w5wUtEAX9gGnRB&_nc_ht=scontent.ftpe7-3.fna&oh=6a9639cef62e9bb27e2f12ba2ef35daf&oe=60BAFE82)

^
Are you selling these?  Pricing?

Title: Re: Stereo microphone ruler
Post by: b9audio on May 07, 2021, 10:24:27 AM
^ That's a particularly well written and informative article, compared to many explanations of stereo microphone setups found on the internet.  Thanks for the link.  I like that they go in depth and mention the application of shuffling (increased stereo widening applied to the lower frequencies) for coincident and close-near-spaced setups, as I find it helpful when using these arrangements for concert recording with significant ambient pickup (in contrast to close stereo-mic'ing, or as one part of a larger array)

Your VR A setup appears identical to X/Y 120.  Is that so?   Curious about that one.
VR A is XY 109 according to tetrahedron angle relationship between neighbor surface.
Title: Re: Stereo microphone ruler
Post by: b9audio on May 07, 2021, 10:27:31 AM
It's here. Thank Gutbucket and all value comments.
(https://scontent.ftpe7-3.fna.fbcdn.net/v/t1.6435-9/182660965_2129246287213825_4046866722991219712_n.jpg?_nc_cat=103&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=0p4E2w5wUtEAX9gGnRB&_nc_ht=scontent.ftpe7-3.fna&oh=6a9639cef62e9bb27e2f12ba2ef35daf&oe=60BAFE82)

^
Are you selling these?  Pricing?

USD$12 plus postage.
Title: Re: Stereo microphone ruler
Post by: dactylus on May 07, 2021, 10:36:05 AM
It's here. Thank Gutbucket and all value comments.
(https://scontent.ftpe7-3.fna.fbcdn.net/v/t1.6435-9/182660965_2129246287213825_4046866722991219712_n.jpg?_nc_cat=103&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=0p4E2w5wUtEAX9gGnRB&_nc_ht=scontent.ftpe7-3.fna&oh=6a9639cef62e9bb27e2f12ba2ef35daf&oe=60BAFE82)

^
Are you selling these?  Pricing?

USD$12 plus postage.

Thank you.  I sent you a PM.

Title: Re: Stereo microphone ruler
Post by: heathen on May 07, 2021, 05:11:19 PM
USD$12 plus postage.

Do you have any idea how much postage is to the continental US?
Title: Re: Stereo microphone ruler
Post by: lsd2525 on May 07, 2021, 05:28:47 PM
That's sexy as hell
Title: Re: Stereo microphone ruler
Post by: b9audio on May 08, 2021, 09:18:47 AM
First time use on site.
(https://scontent.ftpe8-4.fna.fbcdn.net/v/t1.6435-9/180928515_4523126241049231_2537666755911925564_n.jpg?_nc_cat=104&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=_YuMj8k-fDQAX9upigQ&_nc_ht=scontent.ftpe8-4.fna&oh=dc352bc920ec3428571b16621d9c019a&oe=60BCE67F)
And it goes well with Sonosax
(https://scontent.ftpe8-2.fna.fbcdn.net/v/t1.6435-9/182129652_4523442384350950_7485430900111198837_n.jpg?_nc_cat=103&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=9OYUIKJ1CsgAX9_E9sf&_nc_oc=AQnhWydGxdc90fE6x4HBw4QnGfwVgYc5vd-yuoRzqeZiEJvZOnloTt9bWuDofmuh3Dg&_nc_ht=scontent.ftpe8-2.fna&oh=3f4f1a523b41ab82fd3ef6530dfb4231&oe=60BC6EC1)
Title: Re: Stereo microphone ruler
Post by: jerryfreak on May 08, 2021, 09:22:48 AM
USD$12 plus postage.

Do you have any idea how much postage is to the continental US?

we can group buy if it helps
Title: Re: Stereo microphone ruler
Post by: b9audio on May 12, 2021, 07:43:52 AM
The rulers are ready. Will be listed in the b9audio.com website. Postage will be confirm tomorrow. Estimate USD8 for north America and Europe.

(https://scontent.ftpe7-1.fna.fbcdn.net/v/t1.6435-9/s960x960/183213541_2133359163469204_3735888758566045279_n.jpg?_nc_cat=106&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=HDg-ZIWfEykAX_qfQS2&_nc_ht=scontent.ftpe7-1.fna&tp=7&oh=e2e607f80f4890ba40d22f8df52117d4&oe=60C0FA3B)

(https://scontent.ftpe7-3.fna.fbcdn.net/v/t1.6435-9/s960x960/185585730_2133359156802538_3926001412902151305_n.jpg?_nc_cat=103&ccb=1-3&_nc_sid=8bfeb9&_nc_ohc=IwrD_-PcQ40AX_Yx6BB&_nc_ht=scontent.ftpe7-3.fna&tp=7&oh=06986e4038beedab88ea8ff785f7c089&oe=60BFF2CA)
Title: Re: Stereo microphone ruler
Post by: b9audio on May 13, 2021, 04:24:39 AM
The ruler is ready for order, please go to b9audio.com to order.
In case you need to order more than 1, please contact me via PM or email.
Title: Re: Stereo microphone ruler
Post by: rocksuitcase on May 13, 2021, 11:54:25 AM
I ordered. THANKS!
edit: it shipped next day from Taiwan. EXCELLENT service!
Title: Re: Stereo microphone ruler
Post by: boa on May 13, 2021, 02:51:11 PM
Ordered. Thank you very much!
Title: Re: Stereo microphone ruler
Post by: dactylus on May 14, 2021, 10:32:50 AM
Ordered.  Thank you!!

Title: Re: Stereo microphone ruler
Post by: old and in the way on May 14, 2021, 04:49:23 PM
Ordered one thanks .
Title: Re: Stereo microphone ruler
Post by: OhioHead on May 14, 2021, 05:08:30 PM
Just ordered via your website, thank you for sharing this with us!
Title: Re: Stereo microphone ruler
Post by: b9audio on May 19, 2021, 04:08:11 AM
All order until May 18 were shipped. May takes some time (estimate 2 weeks) to get to you.
Title: Re: Stereo microphone ruler
Post by: dactylus on May 19, 2021, 09:34:51 AM
All order until May 18 were shipped. May takes some time (estimate 2 weeks) to get to you.

Thank you!

Title: Re: Stereo microphone ruler
Post by: Barry M on June 01, 2021, 02:37:15 PM
Received mine today:  ordered May 13th and shipped the next day. Sweet, nicely packaged, and even with some expected Canada Post delay, only a couple of weeks. Thanks, b9audio. I don't imagine this is any kind of moneymaker for you, and I appreciate you making these.
Title: Re: Stereo microphone ruler
Post by: SMsound on June 01, 2021, 06:35:58 PM
Is there a picture of these? Posts seem to refer to one, but I'm not seeing it in the thread. Sounds like an item that would be easier to use than my diagram printed on printer paper...
Title: Re: Stereo microphone ruler
Post by: dactylus on June 02, 2021, 07:53:21 AM
Is there a picture of these? Posts seem to refer to one, but I'm not seeing it in the thread. Sounds like an item that would be easier to use than my diagram printed on printer paper...


There are multiple photos of this in the first two pages of this thread.
Title: Re: Stereo microphone ruler
Post by: vanark on June 02, 2021, 08:14:35 AM
Is there a picture of these? Posts seem to refer to one, but I'm not seeing it in the thread. Sounds like an item that would be easier to use than my diagram printed on printer paper...


There are multiple photos of this in the first two pages of this thread.

They are linked there, but I can't see them either. That are linked from Facebook so maybe that had something to do with it.
Title: Re: Stereo microphone ruler
Post by: dactylus on June 02, 2021, 08:17:28 AM
Is there a picture of these? Posts seem to refer to one, but I'm not seeing it in the thread. Sounds like an item that would be easier to use than my diagram printed on printer paper...


There are multiple photos of this in the first two pages of this thread.

They are linked there, but I can't see them either. That are linked from Facebook so maybe that had something to do with it.

Rory I'd say that you're right about the Facebook links.  Give this link a try:  https://b9audio.com/
Title: Re: Stereo microphone ruler
Post by: Barry M on June 02, 2021, 10:54:45 AM
(https://lh3.googleusercontent.com/q8-9TEzn2czYJSVOm3CvdGV1hFKztomKOFZ2i1ZuCEIJ282Ns_mNm2Vi6ZKq7Cy2ADxXmHFL6ubqDZ19OMW39648wnOZxpJd-sz0-vtcjuS_S3WXz6HiOfAn38BMceVhA-YXAs-h9TE=w2400)

Ruler, and please admire the hand-crafted paper sleeve and folded corrugated board shipping holster.  There's a lot of per-unit effort here.
Title: Re: Stereo microphone ruler
Post by: boa on June 02, 2021, 04:14:20 PM
Received mine today. Very nicely packaged and fits in my backpack next to my cables. Thank you B9 audio!
Title: Re: Stereo microphone ruler
Post by: b9audio on June 04, 2021, 12:24:05 AM
Good to know the rulers arrived in good shape. Using the low cost packing method as soon as it protects well, in order to keep the price as low as possible.
Title: Re: Stereo microphone ruler
Post by: b9audio on June 11, 2021, 07:06:52 AM
When setting the end address microphones, ref to the cross line to the estimate diaphragm position.
(https://scontent.ftpe7-1.fna.fbcdn.net/v/t1.6435-9/s1080x2048/196703288_4630340603661127_1261971183096088770_n.jpg?_nc_cat=106&ccb=1-3&_nc_sid=825194&_nc_ohc=cZo-gq9zbSMAX9K-Gke&_nc_ht=scontent.ftpe7-1.fna&tp=7&oh=3f0257fb3df66a11bd76bf8d7436b073&oe=60C89B85)
Title: Re: Stereo microphone ruler
Post by: OhioHead on June 22, 2021, 08:09:58 AM
I received mine yesterday, looking forward to using this weekend, thank you.
Title: Re: Stereo microphone ruler
Post by: pohaku on June 26, 2021, 04:53:54 PM
Got mine last week.  Looks great!

Thank you!
Title: Re: Stereo microphone ruler
Post by: dactylus on June 27, 2021, 08:26:00 AM
Thank you!  I received my rulers a couple of days ago.  They arrived in perfect condition!!
Title: Re: Stereo microphone ruler
Post by: b9audio on June 28, 2021, 05:05:01 AM
So good to know that you guys like this ruler. Working on some more interesting products.
Title: Re: Stereo microphone ruler
Post by: phil_er_up on July 18, 2021, 04:21:30 PM
Bought one and build quality is solid. Easy to read and like the CM markings. Some times I use to estimate these spacing and angle. So this will be nice and simple to use and set up.

Thanks B9audio.
Title: Re: Stereo microphone ruler
Post by: b9audio on July 24, 2021, 11:13:40 PM
Excellent video
https://youtu.be/aqEBgyAUD4U (https://youtu.be/aqEBgyAUD4U)
Title: Re: Stereo microphone ruler
Post by: b9audio on August 11, 2021, 09:16:39 AM
A new rubber base for in-piano pickup.
(https://scontent.ftpe7-2.fna.fbcdn.net/v/t1.6435-9/231438034_2205105609627892_8369256658006479638_n.jpg?_nc_cat=109&ccb=1-5&_nc_sid=8bfeb9&_nc_ohc=gQN3Yy7c7VoAX9S46Qn&_nc_ht=scontent.ftpe7-2.fna&oh=f362ae831c684dc3992050f79f9f6779&oe=61964344)
Title: Re: Stereo microphone ruler
Post by: dactylus on August 11, 2021, 09:27:17 PM
Nice!