Are surveillance microphones a thing?

Bill Gates

n3wb
May 30, 2024
18
5
Third world ass country
My cameras have audio, they are good enough to catch gunshot sounds, car crashes and all those really loud sounds. But when people are talking it is pretty much just mumbling, diffficult to pick up what they are saying unless they are like 5 meters or less from the camera.

So are surveillance microphones a thing?
 
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My cameras have audio, they are good enough to catch gunshot sounds, car crashes and all those really loud sounds. But when people are talking it is pretty much just mumbling, diffficult to pick up what they are saying unless they are like 5 meters or less from the camera.

So are surveillance microphones a thing?
Be sure you have turned off the "noise filter" in the cameras GUI.
 
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I use several of these ( ) next to my exterior cameras and they sound much better than my camera’s built in microphones. It’s easy to make out conversations with the external microphone, but nearly impossible with the built in ones.

I have a few of those in the field. They do work well. I always add a dead cat to the setup to filter the wind noise.

Here is another microphone I have been using lately. This one has excellent audio and is weatherproof.
 
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What dead cat do you like to use on the Microsevens?

I don't have a link to the exact model, but any deadcat that will fit over a 1/2" microphone. Secure it with a nylon wire tie. I have never found one that is rated for outdoor use but usually get about 6 months out of a new one. I have also had a few microphones destroyed when a animal of some sort tried to have it's way with it.
 
You should definitely check out ETS Inc. They manufacture a ton of audio surveillance microphones as well as various interfaces that make connecting external microphones to your camera easy. Their prices are more than reasonable and they've been around since the early 90s.

Check out their microphone selection here. Security and Surveillance Microphones

What kind of camera do you have? What kind of microphone form factor are you looking for? Do you want the microphone to be as covert as possible? Where are you mounting the mic? What kind of microphone input does your camera take (Line Level or Mic Level)? One of the best benefits of external microphones is that you can place the microphone as close to the sound source that you want to monitor/capture. Every microphone they make has the option to add an ultra low noise microphone, which will pick-up even mumbles and whispers very well.

If you're unfamiliar with state laws in regards to audio surveillance, ETS also has a guideline you can read here: Audio and the Law Explained - Legal Considerations for Surveillance

I have a customer who says the mic they bought (SM1-WSS with the low noise mic and PE board) that is mounted outside their front door can effortlessly pick up the sound of their neighbor getting groceries out of the back of her car "as if they are right next to the microphone." Of course, he's in a quiet neighborhood, but that still speaks volumes about its performance.
 
You should definitely check out ETS Inc. They manufacture a ton of audio surveillance microphones as well as various interfaces that make connecting external microphones to your camera easy. Their prices are more than reasonable and they've been around since the early 90s.

Check out their microphone selection here. Security and Surveillance Microphones

What kind of camera do you have? What kind of microphone form factor are you looking for? Do you want the microphone to be as covert as possible? Where are you mounting the mic? What kind of microphone input does your camera take (Line Level or Mic Level)? One of the best benefits of external microphones is that you can place the microphone as close to the sound source that you want to monitor/capture. Every microphone they make has the option to add an ultra low noise microphone, which will pick-up even mumbles and whispers very well.

If you're unfamiliar with state laws in regards to audio surveillance, ETS also has a guideline you can read here: Audio and the Law Explained - Legal Considerations for Surveillance

I have a customer who says the mic they bought (SM1-WSS with the low noise mic and PE board) that is mounted outside their front door can effortlessly pick up the sound of their neighbor getting groceries out of the back of her car "as if they are right next to the microphone." Of course, he's in a quiet neighborhood, but that still speaks volumes about its performance.

Let me guess, you are with ETS?
 
Let me guess, you are with ETS?
Yeah, that’s right! You might not have heard of us—we tend to fly under the radar—but we’ve been around for a while. We make a lot of products that solve the kinds of issues being discussed here, and certainly at higher quality and performance than anything you can get from Amazon (like what's been suggested so far). I'd love to help you find a solution as well if there is anything in particular you're dealing with.
 
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At least he's not a bot and not spamming the place up and willing to engage in dialog
 
At least he's not a bot and not spamming the place up and willing to engage in dialog
Thank you for recognizing my intentions! I've noticed there is a lack of awareness for audio surveillance offerings in the CCTV/PoE IP camera world, so when I find someone asking a question about it or questioning if it even exists, I'm happy to share with them a solution that solves their problem. Audio surveillance is a pretty niche market, and there's not a lot of helpful information online because of this. I just want people like the person who started this thread to know there is equipment out there that exists to solve their problems.
 
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...But then he IS from New Mexico.... :p
 
@aesterling @TRLcam How do you guys provide power to the microphones you use? Are you using a specific adapter that pulls power off the PoE line to the camera or ??? I've always been nervous about tapping into the PoE line so I've just never done it, in part because I haven't seen enough people mention anything specific for doing so. I have a few cameras that don't have any microphone (like Dahua thermal cameras) so I'd like to do add an external microphone.

@audiosurveillanceguy22 I welcome having you here, but allow me for a moment to offer some constructive feedback. IMHO (of course) the ETS site isn't exactly friendly to someone who doesn't already know exactly what they want, which is likely the majority of people on these forums (myself included). For example, I just looked and still can't tell the difference between the ML1-FE and the ML1-HS, much less all the others. I also have no experience with mic-level vs. pre-amplified to know whether I'd care about the difference, and nothing on the site seems to help me with that. There aren't prices on anything, and some offer a "Ultra Low Noise Option", but I have no idea what that is, or even if it costs more (or even 10x more), or if I'd care. I also found your SMEA-1, but it doesn't look like it's rated for outdoor use where I have most of my cameras, so all these things combined leave me thinking that ETS is not even trying to win my business, other than your presence here.

I don't think I'm a technical idiot (at least I know about the Dunning-Kruger effect!), and I don't think I'm alone here in that most of us default to using the microphone that comes with our cameras (if available) so many of us are not equipped to buy from ETS. Also no transparency on pricing doesn't help. I realize you may not want that on your main public website for many reasons, but if you want to sell to people here, you might want to consider something. Otherwise products on Amazon are just too easy to buy (like the microphones mentioned earlier in this thread), even if they aren't as good. I for one would be happy to buy at least something from you even to just test, to find out if it really is better (or not), but even after looking at your website, I have no idea what I'd even try, so I left and haven't purchased anything.
 
Hey, I really appreciate the constructive feedback. You're absolutely right—if you don’t already know exactly what you’re looking for, the site isn’t doing much to guide you, and that’s something we need to improve. The ML1-FE and ML1-HS are actually the same microphone, just with different housings. These particular mics are heavily used in the self-service industry, and It’s purely a preference thing—some kiosk manufacturers like the look of the ML1-FE, while others go for the ML1-HS or ML1-TD. The ML1-FE, for example, is used in thousands of self-service kiosks worldwide from parking kiosks to ATMs.

Our target market for the last 32 years has mainly been distributors, dealers, and integrators, most of who already know exactly what they need. If we are ever assisting an end user, many of them also already know what type of mic they need because their camera’s instructions specify the right input type, but for those who don’t, yeah… there should definitely be some kind of guide to help steer them in the right direction. I’ll be working on that. Do you have any suggestions on how this should look?

As for pricing, unfortunately, our agreements with distributors prevent us from listing it on the website right now, though that may change soon since many of our distributors don’t honor our MSRP anyway. If you’re looking to buy online, you can check out A1 Security Cameras, 123 Security Products, Security Equipment Supply, surveillance-video.com, anixter.com, CCTV.net, just to name a few. We manufacture the products, but the supply chain middlemen control a lot of how they’re sold. For example, although many distributors represent our products, only few of them actually stock our units because they're relatively niche products. Because of this, even though you may have placed an order through one of these distributors, often times we're the one's fulfilling these orders. (Giving us more and more incentive to begin selling directly with lower prices).

We do plan to start selling on Amazon in the future, so I contradicted myself a bit when I said, “Better than anything you can get on Amazon.” What I should have said is that a lot of the microphones you find there aren’t really built for commercial or large-scale installations, traditionally the type of installation we supply (think government buildings, hospitals, schools, police stations, etc).

Traditionally, we’re selling in bulk to distributors and manufacturers, not do DIYers, homeowners, or enthusiests, I mean afterall, this is an IP Cam forum. Microphones are essentially a camera accessory in the historical world of Security and Surveillance, far from the spotlight. I don't believe there is a surveillance microphone forum anywhere. Nonetheless, because of this I can certainly see how navigating the site as an end user isn’t the easiest. That said, this is a brand-new site—launched less than three weeks ago—so feedback like yours is super helpful.

For the sake of this thread, I should have pointed people to our distributors’ sites where pricing is actually listed. Is there anything else you’d find helpful to have on the website?
 
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