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Author Topic: Insta360 Mic Pro - New wireless mic with 32-bit stereo internal recording  (Read 940 times)

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Offline hardrain62

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https://www.insta360.com/blog/insta360-announces-new-mic-pro.html

The question is, is 130db max SPL enough for our uses?
Taping since 2002.

Current stealth: Instamic Pro Plus C Stereo, AT943 > Sound Professionals SP-SPSB-10 > Sony PCM A10
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No longer used, but still loved: Tascam DR-680, Tascam DR-100, Sony PCM-M10, RØDE NT5, Studio Projects C4, Roland R-05, iRiver h320 (Modified with Rockbox Firmware), Sony MZ-NF810CK Minidisc, Sony MZ-R70 Minidisc, Sound Professionals SP-CMC-1, Sound Professionals SP-EMC1/SP-BMC-12 binaural mics

Offline Ozpeter

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To get a stereo recording from wireless mics inconspicuously, I attach them inside a baseball cap so the come next to my ears, and that way I get a good image in a pseudo binaural size.  But these Insta360 mics look too big for that.  As for levels, the Zoom M2 MicTrak 32 bit float dual ADC device handles 135dB which is threshold of pain - so the 130dB rating for these wireless mics is pretty good.  Do they have dual ADCs?  I might research that.

Edited to add that while the device claims to be able to record internal stereo audio, none of the reviews have actually tested that so what kind of stereo image it produces is unknown.  Some time ago Insta360 released yet another small video camera and claimed it recorded stereo sound from its single internal mic.  And none of the reviews spotted the inherent problem.  When I challenged Insta360 about this, they said it was a mistake, and conceded that it was mono only.  And they then had to update the firmware to remove the menu option for turning on the non-existent feature.  So - I'd be suspicious until someone actually posts test samples.
« Last Edit: May 22, 2026, 06:24:50 AM by Ozpeter »

Offline dallman

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Just to be clear, this is not Instamic or Zoom. That in no way says anything about the product, but at first glance it looks like a (now Zoom) Instamic product which it is not.
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Offline Ozpeter

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Finally - after hours of checking YouTube reviews - me obsessive?? - I have found one which tests the stereo audio, standing on bridge across a waterfall.  Ok, nothing to do with music but at least this shows it does work and the stereo image is satisfactorily wide.

https://youtu.be/M5SM-0xFiik?si=JSo6ClB0bLP2seXh&t=524

The link should take you to 8:45 in the video where the stereo test begins (albeit initially in mono).

As for comparison with the Zoom Instamic device, I am not in a position to compare them, apart from noting that the price of the Insta360 device seems to be half the price of the Zoom device.  Maybe it's half the quality - I don't know.  One thing that seems obvious is that the three mics on the Insta360 device appear to have the potential to act as a mid/side mic, and I wonder whether down the track they might add M/S options in the menu.  But of course M/S processing of an A/B file can be done in post-production anyway.
« Last Edit: May 23, 2026, 12:17:00 AM by Ozpeter »

Offline Ozpeter

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I received the following info from Insta360 about functionality of their "Mic Pro" transmitter, when used without a receiver -

"32-bit Float Stereo Recording Configuration: The Mic Pro does offer compelling features for audio-only users, such as high-quality 32-bit float stereo internal recording that can be managed via the Insta360 app for configuration.
 
If there is only a single transmitter and no receiver, you can complete the setup via your phone. Simply connect the transmitter to the Insta360 App, and you can adjust TX settings in the App, such as:
Audio Capture Settings: Adjust TX Gain, Tone Mode, Sound Direction, etc.;
Internal Recording Settings: 32-bit, Stereo, Loop, etc.;
Hardware Settings: Power Button Functions, Button Lock Mode, Vibration Feedback, Indicator Lights, etc.
 
2)Remote Start/Stop of Recording in app: I'm sorry that this feature is currently not available. "

So, setting aside the rather important question of actual sound quality, this device when used on its own is pretty basic in the context of live music recording - configure it to record in 32 bit float stereo with no loop function, using your phone, then press the record button on the device and place it where required.  At least it isn't complicated, and personally I don't have much of an issue with starting the recording before the performance - easy to chop off afterwards.  Placement would appear to include mounting the little thing to the peak of your baseball cap using its mounting clip - just don't turn your head during the show.  Magnetic mounting is probably another option, to a rail of some sort for instance.

I recall reading someone's comment that it splits files every half hour.  Of course then comes the question, is it a seamless split?

I'm tempted to get one just out of curiosity, but even though it is small, my cupboard is getting a bit full of seriously underused recording devices...
 

Offline Ozpeter

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There's more - I just noticed in my emails a further message from Insta360, and they state that in fact the internal recording on the mic CAN be started from the phone app,  along with setting the other configuration options.  And to acknowledge my suggestions and interest they have offered me a voucher which is sufficient to prompt me to place an order.  And having received it I will post my opinions about it here, and make my own YouTube review purely about using the device just for audio, rather than in relation to video.  It will be handy to have such a pocketable recording device in my, well, pocket, ready for use in short order.  As far as I am aware the only other device that small which can record 32 bit float stereo internally is the Instamic device, and I believe that may be slightly larger.  And twice the price.  And having just checked, the Instamic doesn't do 32 bit float stereo.  Hmmm.

Extract from the transmitter specs -
Fully charged in approximately 1 hour, 80% in about 24 minutes.  A 5-minute charge gives 1.5 hours of use.  Operating Time 10 hours but when transmitting rather than recording.  Memory 32 GB, giving 22 hours of stereo 32 bit float (twice the memory of the Instamic).  Weight almost 19.7g, about a gram heavier than the Instamic.

Watch this space.... :)
« Last Edit: May 25, 2026, 08:55:15 AM by Ozpeter »

Offline rastasean

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Another video review:
https://youtu.be/8H-OHAzS5xY

The device looks neat, but it's just another audio recorder with built in batteries on 2.4 GHz. I've lost count of companies that make these kinds of recorders. Seems like it was Rode who first started it, but I could be way off.

Now content creators have the best gear available to them (cameras, lights, microphones) but will they make original and interesting content, or will this neat gear get used by politicians and companies trying to peddle their message and products noticed by the masses.
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Offline Ozpeter

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Another video review:
https://youtu.be/8H-OHAzS5xY

The device looks neat, but it's just another audio recorder with built in batteries on 2.4 GHz. I've lost count of companies that make these kinds of recorders. Seems like it was Rode who first started it, but I could be way off....

This is the problem that I'm highlighting - it's being promoted as a wireless mic system, but it also seems to be the only 32 bit float stereo recording device of this size with built in mics.  The Instamic, I believe, doesn't do stereo in 32 bit float although its size is similar (and it costs double).  And no other wireless mic does, simply because they don't have multiple capsules.  But the reviewers, apart from one, are just passing over this.  Like the review you mentioned.  And I've watched a couple of dozen.  Well, mine is on order now and I will then discover, and report, whether it is amazing or dreadful.  Or somewhere in between.

[Edited to add that as the 'lid' of the device is a customisable e-ink display, it might be possible to put the logo of some pill company onto it, so when it is checked at venues, it looks more like a little pill box than a recorder.  Well, at a quick glance...]
« Last Edit: May 28, 2026, 08:40:30 AM by Ozpeter »

Offline rastasean

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This is the problem that I'm highlighting - it's being promoted as a wireless mic system, but it also seems to be the only 32 bit float stereo recording device of this size with built in mics.  The Instamic, I believe, doesn't do stereo in 32 bit float although its size is similar (and it costs double).

If you're speaking of the zoom recorder, it does do 32 bit recording but it doesn't have wireless recording. It has bluetooth functionality to control the device and it's yet another device with built in batteries.

https://zoomcorp.com/en/us/instamic/instamic-pro-plus-c/instamic/

Instamic is an ultra-compact recorder that captures flawless 32‑bit float audio anywhere, even in the harshest conditions.
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Offline al w.

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Unfortunately that device only records 32 bit mono. If you want stereo it records in 24

Offline rastasean

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OH, now I see what ozpeter was saying about the insta360 mic pro; thanks for pointing that out!

I hadn't closely followed the zoom product to know that difference. Sadly they don't make it obvious stereo recording is only in mono.

And with all that said, it'll be interesting to see what ozpeter discovers with the ista360 product.
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Offline Ozpeter

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My Mic Pro has arrived, and all I can say is - wow.  BUT - I'm actually not at home for a few days, and so I am only able to test it with items that are to hand - not my best headphones, and no access to analysis tools on my PC (although it may be possible to do that remotely...).  Still, I know the sound of those headphones well, and the playback really was impressive.

Note that I bought only the mic, not the wireless receiver.

First, it is somehow smaller than I expected.  Given that its buttons, mics, and LEDs are around the edge, there is only just enough room for them. It comes with a soft carrying bag with space for accessories. As an extra, I bought the full size wind muff which wraps round all three mics. 

Setting it up was very straightforward using the app, which includes a remote record button and a slew of optional settings (which I have yet to explore).  So within a few minutes I was testing it out by speaking a nursery rhyme into it (as one does).

But then came the challenge of how to hear the result.  I don't have a PC here to connect it to.  It has no playback ability at all.  The only way to hear the recording is to access the file via the USB-C port, which they also manage to cram into the periphery.  Luckily I had brought from home one of those thingys which plugs into my phone and which has a number of USB sockets on it, and connecting that to my phone and to the Mic Pro enabled easy access to the file on the device, which I then copied onto the phone.  The phone saw the Mic Pro like an SSD or the like.  Then I unplugged everything, plugged my headphones into the phone via a USB adapter, and replayed the file.  The phone seemed perfectly happy playing a 32 bit float stereo file.

Frankly I wasn't too impressed.  The stereo image was slightly odd and the sound of my voice was indifferent - but then again, most of us don't like the sound of our own voice!  However what probably didn't help was that I had the mic in my hand, which could well have been occluding the mics a bit.
 
So then I tried recording the replay of a short track featuring a young lady singing with a jazz band. And this time I put the mic on the table in front of the speakers (again, not the world's best speakers, just small bookshelf ones).  When I replayed that, my jaw dropped, as the frequency response was great at the top and bottom ends, and the stereo image was spot on. It simply sounded like what I'd just been listening to.  At the end of the track I detected no audible noise, and I'd had the music playing pretty loud.

At the point I had to attend to domestic matters, but of course I will be doing further tests as the evening progresses, and reporting back here.  But my initial feeling is that this is a device to be taken seriously.  OK, the lack of monitoring and easy playback might rule it out for some, but the plus points, coupled with the USA price of just $99, seems to me to make it worth considering by anyone wanting to record 32 bit float stereo with a device that is barely there at all.  And all you do is press one button.  OK, two if you count the power button as well. 

And despite hours of reading reviews and watching the slew of them on YouTube, I seem to be the first person to spot its potential as a tool for field / location recording etc.  I think Insta360 may not realise what they have created.

I will also be considering mounting options. Just holding it in your hand can be problematic as it's hard not to end up with your fingers on,  or too close to, the mics.  But it can be clipped to something like a bent piece of cardboard held in the hand with the mics unobstructed.  Or clipped to a baseball cap so long as you don't move your head.  Many possiblities.

Oooo, I'm going to have fun with this...

Offline Ozpeter

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Well, I have now managed to transfer a recording of some rock music replayed on those same bookshelf speakers, which I made using the Zoom H2e and the Insta360 Mic Pro at the same time, into my phone, then from my phone to Google Drive, and then logged into my PC 50km away using a Chromebook, opened Audition there, normalised the files, and scanned their frequency response (end to end). 

The green lines are the H2e and the red lines are the Mic Pro.  The chart dosn't go to the lowest frequencies but you can see the Mic Pro was heading in a better direction down there.  I'm not sure how much can be gleaned from the mid and high frequency lines,  but when replayed, the H2e had a significantly more "edgy" and bright HF sound while the Mic Pro was more "rounded" and generally more pleasant to hear, with a more beefy bottom end.

Purely on the basis of this test, I'd prefer the Mic Pro, but I admit it's not the most scientific comparison.  Maybe I will try recording a gliding test tone, if the other residents here could stand the sound of it coming from the hifi...
« Last Edit: Today at 08:18:26 AM by Ozpeter »

 

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