Samson USB GO Mic Teardown

[@7head7metal7]

The capsule with holes in the back probably has the cardioid pattern. The reason is, that sound waves from behind the microphone get bent into the front side of the capsule. So the backside holes allow for destructive interference between sound waves directly coming from the back into the holes and sound waves bent around the capsule to the front side. For example, both sides of the capsule experience a sound wave peak, so they cancel each other out. With this method the directional behaviour (cardioid pattern in this case) of the microphone is achieved.

[@hanesvettori4658]

Metalhead777 Your right... only sound-pressure receiver are by definition omni directional... Sound speed receiver are cardoid (with holes in the back).

[@thisisfernando]

please help me, i opened the mic to change the switch and the cardiod mode is in low volume now, what have i done? the cardioid mode still words but is in a very low volume, how can i repair it?

[@hexinli]

I've had one of these for years. It is great for teleconferencing. Users on the other end really appreciate the audio quality, and having the omni switch is great when I have someone in my office also participating in the call. The headphone jack makes it possible to have a more private call - in an airport or coffee shop, for example.

[@sykskysyk]

Nice little mic, great for VoIP and carrying on the go. I wish the stand could clamp onto thicker objects though.

[@hanesvettori4658]

The reason for second capsule could have to do with the Omni mode... the top Capsule looks like a electret one ("permanently" polarised). I guess they are by definition not omni...

[@EEVblog2]

Yes, one is omni the other is cardioid

[@spacejaga]

Hanes vettori I would assume two mics are for better frequency response.... :/

[@juweinert]

Nope. It's simple to build a TINY microphone with a huge frequency response (look at your phone!) but it's fairly hard to produce a capsule that could be electronically changing it's pattern! You may use different capsule for better frequency coverage in professional studio recordings, but there we tend to use different sized capsules

[@bbreeuwer4577]

They are both electrets. Electret capsule can be omni, cardiod (or uni-polar), dipole etc. They are obviously for creating a certain beam pattern. Basically every device that is this little has just little electrets inside.

[@thisisfernando]

@@EEVblog2 please help me, i opened the mic to change the switch and the cardiod mode is in low volume now, what have i done? the cardioid mode still words but is in a very low volume, how can i repair it?

[@uwezimmermann5427]

you can sum analog signals still using an opamp in 2017! no DSP needed... I was actually expecting two capsules back to back when you showed the omni-cardio switch, where you would either add or subtract the signals in order to modify the characteristics...

[@Fake_Blood]

Grounding wire was soldered to the washer I think.

[@EEVblog2]

Yep, I suspect so.

[@quakermaas]

I use the same mic, and have broke the earth wire also, it goes to the washer. I think one of my mics face towards the back of the mic...going to have to open it again to confirm

[@quakermaas]

Just checked, both of mine are facing forward also.

[@CrazyA9999]

Although it is suspended in rubber this thing does pick up annoying amounts of hum when clipped to a laptop. With a little separate table stand and a pop filter it works brilliant. Lovely teardown Dave!

[@pmkleinp]

2 minute teardown that's 11 minutes long is fine by me.

[@stranger7968]

Time always travels slower in Dave's universe :P

[@andrzejsjz]

Paul Kleinpeter haha yap it's normal

[@JONOVID]

them electret condenser inserts are cheap as its the enclosure design & supporting electronics that sets the microphone characteristics. most electret condenser inserts have good frequency response upto 20k. some go a bit higher.

[@LazerLord10]

Same microphone I have! I gotta say, the price/performance on this thing is pretty nice.

[@mirkomueller3412]

The "destroyer of things" strikes again. lol. You sound pretty sick, hope you'll be good soon. Possibly two different kinds of mic's - one better catching low frequencies than the other?

[@hanasun96]

Hi, does anyone know what kind of connector they use at 3:40?

[@LukasRoellin]

Why do they even bother with a socket and a cable, when they got some other cable going across?

[@TheDefpom]

The wire was going to the washer under the screw

[@devttyUSB0]

Raw footage. Nice! Great mic, too!

[@PlasmaHH]

Specs say you can switch between cardioid and omni mode, maybe the OS driver does that part of "DSP"?

[@EEVblog2]

No, it's two physical mics inside with different patterns.

[@John_Ridley]

The Go is the microphone that Embedded.FM sends to guests. It sounds good.

[@EEVblog2]

We at The Amp Hour have sent it to guests as well.

[@GPUtest]

I knew Dave can't talk about electronics only for two minutes :D

[@amicloud_yt]

The two capsules is probably for the omnidirectional mode.

[@twocvbloke]

I couldn't help but do the slow clap of sarcasm when you pulled that wire off, easily fixed with a tickle from a soldering iron though... :)

[@longjohn526]

Two capsules are used so you change from omni to cardioid .... one capsule is omni and the other cardioid and it just switches capsules .... Electret capsules are so cheap that this is the easiest way to get the job done. A cardioid electret will have some way for sound 9or sound pressure) to enter the back of the capsule to create your 180 degree signal 'mechanically' get your cancelling so I'd say the top is your cardioid and the bottom capsule is the omni

[@thisisfernando]

please help me, i opened the mic to change the switch and the cardiod mode is in low volume now, what have i done? the cardioid mode still words but is in a very low volume, how can i repair it? i dont know what to do

[@ot4kon]

they say in the manual that there are two capsules.

[@andljoy]

New channel , dave breaks mic's. I would watch it

[@HillsWorkbench]

Thanks, have been looking at USB mics, haven't seen this one. Nice to have switchable cardioid and omni cartriges too.

[@marshaul]

Is "card-oyd" the correct pronunciation in AuE?

[@JennyEverywhere]

Could it have two capsules to provide "stereo" input? OR maybe two different frequency response levels without having to build filters?

[@DragosDutu]

I did voice-overs on the go with this. For me it was perfect with a pop filter.

[@uriituw]

Those two units look different on the back.

[@mahdibarati2841]

I think the wire was soldered to the washer

[@jamesgrimwood1285]

New catchphrase - "Don't turn it on, tear it apart!"

[@PanduPoluan]

Heey, I have that mic! I love its sound, and its nearly unbelievably good for its price. A purchase I never regretted, at all :-)

[@XciterD]

Yeah for the price its insanely good!

[@VeraTR909]

I've even used it to record some guitar and vocals, (in my experience) it comes pretty close to a professional studio condenser mic in terms of audio quality. Quite dynamic with nice crispy highs IMO

[@shreyaskul]

3:14 You can hear the windows 10 notification sound in bg when dave says oops... Nice timing :)

[@hendrikseemann8407]

Dude this was so interesting, thank you!

[@pufferfish0101]

Possibly different frequency ranges

[@EEVblog2]

No, one is omni and the other cardoid pattern. Forget about that, oops!

[@MatthewSuffidy]

I got a logitech guitar hero usb microphone from the salvation army for $2. The wire was broken, but by movement the break was under the hold it part. I cut it and soldered it on. All is fine but the SNR of the DAC sucks and I almost wish I just soldered on a microphone cable to my sound card instead. So now I don't know what to do really.

[@JLSoftware]

Don't turn it on - take it apahhht. Let's have a squizz... We're in like Flynn. WUPS! Not a whole lot in there... Need to get a knife... We're in like Flynn. Not a whole lot in there... That's all she wrote. That's all she wrote.

[@onlyrgu]

Are you an AI Bot?

[@JLSoftware]

Don't turn a Bot on - take it apahhht. That's all she wrote. Not a huge amount in there... Catch you next time.

[@oetken007]

I think one is a dynamic mic, the other an condenser one. Better dynamic and high sensitivity combined in one case.

[@GadgetAddict]

Took me a full minute into the video before I realised it's Samson and not Samsung.

[@SurajGrewal]

Ooh that cringe you feel when someone uses hollow ground knife for prying open stuff

[@TonyThomas10000]

I have one of those!

[@gunnish1337]

The plastic looks so crusty...

[@ipadize]

after almost exactly 9 years, mine died so i searched for exactly this video^^ update: it wasnt dead, windows just pulled a prank on me by deactivating it in sounds :|

[@thekaduu]

"Samson is the champion... other two are pretty good."

[@thekaduu]

"All three are champions..."

[@LightSoySauce]

trouble is that if you don't edit then you are left as clueless as the rest of us ! I stole the following text from the web re: the two capsules: How Multi-Pattern Mics Work Rather than requiring a separate mic for every job…engineers came up with an ingenious idea to cram a TON of versatility into just one mic. They realized that…simply by varying the output from two back-to-back cardioid capsules, you could recreate virtually any polar pattern imaginable. For example: By combining both cardioid signals, you get an omnidirectional pattern. By combining both but reversing the polarity of one, you get a figure 8 pattern. By turning off one, and using the other, you get a cardioid pattern. credit to: ehomerecordingstudio dot com

[@uwezimmermann5427]

That was exactly what I expected to see - but that's obviously not the case here, where one capsule has the one characteristic and the other one the other...

[@misaalanshori]

"2-Minute teardown" 2 Minute? 2MINUTE? *2 MINUTE?*

[@EEVblog2]

Yes, two minutes.

[@Blasterxp]

Dude, hardware switch between -10 mic, and regular mic! That's all!

[@raindogred]

cardioid - pronounced "card-e-oid"

[@Zadster]

^^ This. From Cardio = heart. The mic's sensitivity pattern is heart shaped.

[@TheExileFox]

I had issues with this exact product, poor quality USB sound and the headphone jack was dead. Retailer went bust and I lost the 60$ or whatever it did cost.

[@SwordQuake2]

Yeah suuure, 2 minutes.

[@avejst]

Thanks for sharing, 11 min. later ;-)

[@WacKEDmaN]

1st like! :P