Trying to Make a Wireless Lavalier Microphone

IMO wireless lavalier is the best option for quality video voice recording. But since I’m too cheap, I try to make my own! Thanks to www.rode.com for putting me out of my misery!
It would be pretty awesome if you support ElectroBOOM at Patreon:
/ electroboom
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More on the design at: www.electroboom.com/?p=996
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Special thanks to my sponsors and patrons, especially www.CircuitSpecialists.com whom I still use tools from:
www.electroboom.com/?page_id=727
Below are my Super Patrons with support to the extreme!
Aki K. at www.pc-doctor.com/
Enzo Breda Lee
Jeff Moe
By: Mehdi Sadaghdar

[@RizkyAiman]

5:47 "oh shit I created the light bulb" Edison should learn from you man

[@gregorykhvatsky7668]

It's a shitty bulb though

[@natalieobman5018]

Its easy to make stuff glow with electricity. The hard part is keeping it glowing without burning.

[@MakeloGy]

EMERGENCY LIGHT without BATTERY LIFETIME POWER SUPPLY kzbin.info/www/bejne/fomyfIiphtxrh5I

[@aboodxs5800]

Rizky Aiman like oh shit i created a light bulb what a mess ....

[@ProdigalPorcupine]

Edison didn’t invent the light bulb, he simply improved on designs that had been around for decades.

[@Journetta]

imagine someone in his area listening to him testing the transmitter XD

[@YotaLC-wo6qf]

Journett exactly what I was thinking

[@alex-unofficial]

I know it's just for fun, but those transmiters have a pretty limited range, because its sorta illegal to broadcast above a certain power without a licence

[@mariocamspam72]

@@alex-unofficial it is regulated by the goverment so not "sorta"

[@arthurmead5341]

@@alex-unofficial his neighbors can still pick it up

[@alex-unofficial]

@@arthurmead5341 if they are right next door perhaps, but normally these transmitters have a range of less than 15 meters

[@BiRDiEHere]

Thanks for putting me in the video :D (7:12)

[@DronePath]

he said birdie nom nom

[@megamillionspowerball]

XD birdy num num

[@FaranAhmad-it2xt]

Birdie num num 🤣🤣🤣🤣

[@goodwake7541]

my ears will melt

[@teemuleppa3347]

4 the younger ones who dont get the reference: kzbin.info/www/bejne/l5uwopumeKeDd7s

[@haroldflower8008]

imagine getting an fm transmitter for your phone and you get in your car to use it and all you hear is mehdhi saying "HELLO HELLO ELLO ELLO *chokes*"

[@18436Melissa]

I have a fm transmitter. It inculeds AAA batteries

[@bennyhinnzerubbabel3561]

You'll only here it if you're within 10 meter range with him as his transmitter's transmitting range is limited to 10M

[@Ramulus_2589]

@@bennyhinnzerubbabel3561 Stalkers be listening to Mehdi as his dying body sits on the floor using it trying to record a video 🤣🤣

[@fen4554]

Been working in audio for 20 years... a female to female adapter is lovingly referred to as a lesbian connector.

[@gummel82]

Friendly Metroid Why aren‘t you the top comment? This is fucking gold

[@milkhbox]

Nice. XD whats your term for a headphone splitter cable?

[@NoMoreBsPlease]

Friendly Metroid Does that make male to male connectors gay, or do they prefer to go by homosexual or LGBTQ instead?

[@milkhbox]

Mukund Kumar Not actually what it stands for. (Lesbian, Bi, Gay, Trans) but that's pretty funny.

[@Sir_Uncle_Ned]

So it would follow that a male to male adapter is referred to as "A double-edged 'sword'"

[@cleyfaye]

It's okay, the smoke is what makes electronic works. As long as it stay inside, it's okay.

[@kronek88]

Fact.

[@pistonsjem]

keep the angry pixies calm and they'll stay calm and not cause a riot

[@NourSharif7]

Literally what my professor says XD

[@Misack8]

Magic smoke

[@grendelum]

Sometimes you have to let the smoke out, else you'd never learn anything !!!

[@eduardososa843]

0:25 Wiggle 5:09 hello, Hello, HELLO!!, HELLO!!!! 5:53 come on rode put me out of my misery 5:57 Hello, Hello, Hello, HELLO, oo oo (coughing) 7:28 (whistling), 7:36 life is a peace of sh** 8:48 Mehdi’s sponsor

[@keremerol34]

I think it is piece of sh**

[@cristitabuscano7792]

The best channel

[@benzjeastherfabroa9454]

7:11 Nom Nom, Birdy Nom Nom... 🥴🥴🥴

[@theaviator1152]

5:58 Mehdi is the funniest guy on Earth 😂

[@ethanelzinga1175]

Yes, make the antenna larger.... that way your neighbors can listen to you recording

[@tawidave7092]

7:27 (whistles) life is piece of shi..... Hahahahahahaha

[@jokernepalm]

...when you look at it. Life a laugh and death's a joke it's true. You can see it's all a show people laughing as you go. Just remember that the last laugh is on you... Monty Python song!

[@yaraihan]

7:36 For Skip The Whistles

[@abdullahnasir1233]

This guy really makes me laugh so much.

[@buddythecow]

My religious views in a nutshell

[@othello7]

I was laughing soooo hard XD

[@MrFiver1111]

The microphone you built is very good, I can hear the waves from the shore in the backgound.

[@justinlol2508]

5:57 GODD I LOVE THIS PART

[@bobs12andahalf2]

Audio Janet :) audio Jack and audio Jill?

[@manbearpig9000]

Robert Leitch Audio Jackie?

[@mrpeanuthead101]

Maybe “Three’s Company”

[@mrchordstriker]

Janet goes with Jack everybody knows that! Janet is a brilliant and funny idea!

[@xuNsh1ne]

Audio penis and audio pussy

[@reiannaidoo]

Audio Jack and audio Jake if you're gay. Lol

[@OvajLik]

That feeling when you see ElectroBOOM has uploaded a video…

[@katekyojp6338]

Christmas for me

[@user-de1xi2uf8d]

Horny?

[@Rocky-me5cw]

Question in mind: "Let's see if he can survive this time".

[@mindcore08]

0:59 idk, but i can't stop laughing 😂😂

[@latinized_water]

Lol

[@vjabdulrehman2472]

Did he say p**** word

[@djmalachite]

When someone looks for a radio station and finds his frequency and thinks WHAT THE F***K IS THIS!!!!!!!!!!!!!!!

[@bennyhinnzerubbabel3561]

His transmitting range is limited to 10M. More than 10M no receiver can receive it.

[@anishnattamai8801]

@@bennyhinnzerubbabel3561 r/woooooooosh

[@bbaovanc]

Benny Hinn Zerubbabel awwwwww that’s a shame

[@TwoMetalDonuts]

@@anishnattamai8801 r/woosh

[@AltonTRU]

I tested, I tried and got like 30-40 metres so good if you wanna tune in on your neighbours radio and spam bass boosted Indian music till they break they will then go and sue gem radio gem radio will you him money his is now your enemy. You are jealous of the money he got to buy better speakers, you in the meantime are stuck with a little transmitter you now break his new speakers.

[@weebnextdoor6575]

Anyone else wanna hear all his vids uncensored?

[@tyttuut]

The bleeps make it better somehow.

[@TheAngelOfDeath01]

I don't thing the KZbin Board of Communications will agree to this, or maybe they will.

[@DaneH64]

Yeah I do

[@neonblue703]

Yes

[@mathieuprovost9742]

it already is! he never swore he just say beep out loud.

[@MyurrDurr]

"It's clipped to my pants, or whatever's down there" "And I can make it as long as my p.....proper antenna"

[@tildaheart3372]

the game ender this guy is a bruh moment^^^^^^

[@GingkaHagane43]

Oof

[@hrzmann]

I got demonetisation in my pants.

[@Xnoob545]

@michel777ification penis

[@jumboheadjoey4367]

Penis jokes, man, penis jokes.

[@sgt.numnutz4735]

8:19 totally me when I rage

[@adamjohnson1821]

Profile pic checks out

[@questwalkerko]

"Whats up with all this smoke?" Circut: *You don't want smoke? I'll give you FIREE!!*

[@itsmoonlight_blossom8126]

QuestWalker KO karma is a piece of sh**

[@MO_AIMUSIC]

lost when he sings " Life is a piece of sxxt"

[@willametterailvideography4422]

Kang Yue g

[@PotentialMass]

It's from Monty Pythons Life of Brian. kzbin.info/www/bejne/oHmzgK2Hr9Bsh9E

[@clpsplug]

I died as well XD

[@pilotjayden]

ME TOO HAHAHAHAHAHA

[@tredI9100]

*_liiife isa piza sh******_**

[@Mutated1987]

"So quality! Much sound!" hahahah

[@stewartcaldwell5299]

He speaks Chinglish too??

[@iDancethroughshadoWs]

Am I the only one that though he sounded like Peter Lorre there? X3

[@javieralejandrotrianapaz6343]

Lmao

[@JoeTheOriginalOne]

Why did that remind me of Pewdiepie?

[@KevinTalbotTV]

male to male must be a gay connector lol

[@firenado4295]

lol made me spit out my drink at this

[@sloduino4774]

i call them that. its far easyer.

[@Dr.Cosmar]

what would you call a female to female connector?

[@sloduino4774]

@@Dr.Cosmar lesbian my dude

[@HarryLikesLambos]

OMG

[@MrSpeakerCone]

Love it! In terms of audio sync, one interesting consideration is a viewing audience accustomed to seeing frame-perfect lip sync in the context of a video presentation. This is regardless of apparent distance because most of the time it's more important for the audience to understand that the sound and object making the sound are related than it is for them to understand how far away the object is from the apparent vantage point.

[@edgythehedgy6661]

I prefer thinking you yell at the camera because you’re losing your grasp on reality not just due to audio recording issues.

[@karantica3058]

"Instead of this garbage...." You just crushed your daughter's dreams man...

[@user-po6hn9id1t]

Abdou Gad to be honest, is a cheap thingy. Enough for kids, but not for a youtuber

[@Croxfod106Remake]

8:44 this was the best ive ever seen someone introduce a sponsor

[@hilmanahwaa]

" Life is a piece of s**t " got me

[@Pranav-vb5ho]

I am binge watching your videos while doing my electrical engineering. learnt quite a lot! Cheers! 😁

[@justgame5508]

Pranav Kulkarni I am binge watching his videos instead of doing my electrical engineering. I have a report on second order frequency response circuits due in 6 hours and iv not started it yet... Shit.

[@Pranav-vb5ho]

JustGame Haha #priorities

[@aaronnorman9755]

@@justgame5508 lt spice should save you an ass ton of effort

[@justgame5508]

@@aaronnorman9755 Ahaha thanks, I’ve finished university now this was a long time ago

[@Atros81]

This makes me think of the actual purpose of those claperboards you see before film takes. It gives you a very clear visual of the clap closing shut, as well as the clear audio of the clap to let you sync up sound and audio tracks that are otherwise recorded with different systems. In this way, it becomes a much more trivial thing to sync them up in the initial part of post production editing, allowing you to record audio on a completely separate system to the video.

[@bsorofman]

I'm sooo late to the party but in case anyone is too: ☝️ is the correct solution. Just go wired lav to your phone, record it. Then sync in post.

[@lgw_langgam_rianmontejo_ii3246]

2:50 i can make it as long as my p....proper antena length

[@itsmoonlight_blossom8126]

7:36

[@nickaluscalixto9500]

2:56

[@ramansea]

1:09:01. :)

[@nickaluscalixto9500]

@@ramansea wut

[@justthetoxic]

Lol

[@kwd_kenny]

7:36 *Mouth Whistling....... "Life is a piece of S**T!!!" 🎶🎶 HAHAHAHA!!!!!!

[@18436Melissa]

It's 7:27 lol.

[@stonecold7945]

"Clipped to my pants or whatever's down there"😂

[@Stennishh]

6:54 ElectroBOOM: What's up with my circuits and all this smoke! *explosion* me: and the explosions

[@sharathkrishnan7403]

Best 10 minutes of my life!! The last part on delayed audio really blew my mind!

[@blenderbachcgi]

7:35 "Life is a piece of BLEEP!"

[@blenderbachcgi]

Yep 😂

[@sksksksksksksksksoop8696]

Blender Bach why did u reply to ur own comment

[@blenderbachcgi]

@@sksksksksksksksksoop8696 This is why 😂 kzbin.info/www/bejne/rF7Em6ynlKmYeqM

[@sksksksksksksksksoop8696]

Blender Bach u watch electro boom???

[@sksksksksksksksksoop8696]

Blender Bach i just realised this is on one of his vids

[@icantellyouhadenoughytfort8539]

*_all we are is 3D printers_*

[@blury6445]

IcanTellYouHadEnoughYTForTodayStopWastingYourTimeAndMakeSthOutOfYourLifeNowAndDontReadMyNameAgain Love your name

[@jjjjjaaaacccoob]

bro what song is that

[@izuco8724]

Lol

[@fionlee1568]

Dust in the wind

[@higherpower254]

_Treeedeee printerssss........._

[@olliea6052]

Wow. Many fun. When you had an echo at 7.20 i was crying out for a "FULL BRIDGE RECTIFIER!!!"

[@grekygrek]

Medhi you have become one of my favorite people on the internet. My only regret is not finding you sooner. I learned about electricity whenever i went through welding school and i have no clue about anything you talk about lol....but watching you do things teaches me so much it's crazy lolol.

[@leminhquan50]

6:56 your circuit explosion scared the heck out of me, that make me jump out of my bed while watching this on my tv and speakers

[@JanSeewald]

I Love You

[@ChrisBlagdonIsABoss]

posted today, you commented 3 days ago????????

[@LesKing72]

Vegetal Spagoot Patreon

[@ChrisBlagdonIsABoss]

makes sense

[@alexquant1335]

The power of luuuurve!

[@aisysvideos1447]

Get in the line... AND NO CUTTING DAMMIT

[@mattiviljanen8109]

I'm surprised how well your contraption actually worked! A cheap wireless mic + post-processing magic = win!

[@AntmanRuns]

Love your videos man! They always bring me joy!

[@Jacob786as]

6:21 is what i hear when i’m alone with my thoughts.

[@arnebucher7317]

1:00 reminds me of Idubbbz XD

[@yeezeid]

arne Buecher haha ecks dee !!!!111!!

[@munjee2]

I was thinking more along the lines of Owen Wilson

[@LMAO-sv4jy]

Nick Janse hunting squirrels

[@slendy9600]

Heeeeey that sounds pretty gooooood

[@GETUPANDGO]

Another awesome upload, laughed out loud multiple times!

[@felixhofmann4186]

Great video! I think the latency is mainly caused by the phone being used as the receiver. Connecting a standard fm radio with a headphone output instead should get rid of the audible latency entirely.

[@sgt.numnutz4735]

6:56 spam this and rifles are heard

[@Dragon-xd9em]

XD

[@Dragon-xd9em]

After the explosion it's sounds like a relod lol

[@bobo1on1]

Interesting way of making a gain stage with the second opamp. It took me some time to figure out that the low pass filter before the non-inverting input is to get a DC amplification factor of 1. This makes the circuit suitable to be used with an asymmetrical power supply.

[@spooderman_q]

Best song ever 7:28

[@ammarsiddiqui3586]

@Dark Gamer not it is better

[@itsmoonlight_blossom8126]

7:36

[@Bona_Music]

I’ve been waiting for a video like this 😂 finally some audio stuff. Please make a tube compressor (be safe blowing it up) :D

[@valdislacis2712]

7:36 Why we all came here

[@DaneH64]

Lol 😆

[@adamsucksatyt]

Life is a piece of $H!T

[@theappguest306]

7:28 to 7:36 is the song length

[@IMDYT420]

Dude i just made this comment even tho urs us a year older

[@tru_edvards2029]

Juu veciit

[@Podcastage]

This is amazing. Great video man.

[@thebreadman7220]

Verified with no replies?

[@forcetimer71]

E

[@american0153]

A resistor makes a lightbulb, and a capacitor makes an explosion when connected wrong *No response*

[@lucaayfmlyysiaejdsrtnnervd4646]

resistor -> incandescent light capacitor -> dynamite resistor+capacitor -> firework without the rocket

[@karateka9541]

The only time when I watch the sponsor segment over and over again for the laughs! x)

[@GameOfTobes]

Love the song you did. Will you make a full song out of it? hahaha. I'd totally buy that. :D

[@quasiczarcasm]

Honestly, if it was a startup channel doing fun things it isn't too bad. Not what you'd call professional but it is more listenable than most webcam microphones. Plus anyone who made this themselves deserve massive credit for effort.

[@Winacro]

6:00 Mehdi Just went "Deep Throat"

[@natetv1494]

Nishant Sood almost

[@Charming_Prism]

Oh my God I love this channel, and apparently rode audio!!

[@quentinumbra8223]

"Num num! Birdieeeeee NUM NUM!" I haven't laughed that hard in a long while. That was HILARIOUS!

[@sergiomissaglia6380]

6:00 how coronavirus started 😂

[@budgieplays]

Lol

[@mashfiqmahadi8880]

his house is pretty nice

[@EternaIAbyss]

It's an apartment building.

[@sandrinho7174]

7:36 hahahahahahahahaha 😂😂😂😂😂😂😂😂

[@hernandezrosalia5023]

XD

[@seanman6541]

I have that same FM transmitter (Scosche FMT4R) and I figured out that if you power it from 5v the range goes up to ~100m. I eventually soldered a USB cable to the battery contacts and powered it from a mobile battery pack.

[@zeth-]

7:35 "~Life is a piece of shi-" HAHAHAHA

[@stupidgooglewontletmeuseem688]

6:00 I died laughing 😂🤣😂🤣😂🤣😂🤣😂

[@MagitudeOfHorror]

First the Peter Seller reference, then the Monty Python song. He is so random and hilarious! I love these videos!

[@greyminded]

The only video in the entire KZbin that is looking for sponsor in the beginning and finally found one at the end of the Video. Legend.

[@funny-video-YouTube-channel]

Great experiments. One can also get a used microphone on the app market places. It's an alternative, if you do not want to pay the price for the new one.

[@CaneDimitrov]

0:18 Its azif I'm constantly WOISPERING IN YOR EARS😂

[@foopsky]

I cant believe this video is 6 years ago. I used to watch your video when study break. Thanks Mr. Mehdi, you help me a lot back in my college days 😂

[@siparvez8202]

Loved it. You have explained everything well.

[@argoneum]

Isn't that the phone making most of the delay? Transmitter might add some too, if it is "too digital" inside. Most analog systems have quite low delay, try some el-cheapo tiny FM receiver (with 3.5mm jack… wait, 3.5mm jannet connector), this might help.

Pretty sure this is the issue. Phone FM receiver has no need to be low latency as you are listening a broadcast done in a completely different place. Probably also the small FM transmitter is analog, so with an analog FM receiver you would most likely have no latency at all.

[@Mouzekiller83]

birdy nom nom!!

[@HattmannenNilsson]

I wonder how many got that reference. And of those that did, how many has actually seen the whole movie and not just a short KZbin clip from that scene.

[@jeffjohnson8836]

The Party! that movie totally wouldn't fly today, haha. gotta love Peter Sellers, though...

[@BPantherPink]

"Is it the esratagey of thees game to disperse all of theese colourful balls, all over this table?" :-))

[@BPantherPink]

" And who do you think you are? " "In India we don't think who we are, we know who we are !!!"

[@BPantherPink]

" You know, you shoood not paint all over the bum of this elephant "

[@cemstrumental]

8:18 that moment when I know I forgot something and suddenly remember a very important event that I had to go to.

[@Aikisbest]

8:19~ I've never seen anyone else use that smilie for tableflip, this is awesome X3

[@personious_k]

Is there a way to fix the latency through a circuit, or by using higher quality components?

[@ElectroBOOM]

unfortunately it is mostly related to the phone codecs and apps. If the receiver was just a simple FM radio, there is only very small acceptable latency.

[@endersftd]

I'm not an expert, but Android's audio stack introduces a large amount of latency, regardless of the specific app or audio hardware. If you do an internet search for "android audio latency", you'll see what I'm talking about.

[@Workday8]

Some radio apps have a set buffer time that can be disabled in the settings. Check it out

[@slap_my_hand]

Kris Gillespie ASIO audio drivers can reduce the delay of sounds that are synthesised by applications, but i don't know if they do the same thing for audio from the microphone jack. It also might be hard / impossible to get one running on android.

[@kwinvdv]

It is impossible to fix the latency through a circuit, because that circuit would have to be non-causal, which basically means that it would have to predict the future.

[@id104335409]

''Isn't this what you want?'' Me HEAVILY NODDING to the screen.

[@darkeseid7769]

@electroboom ... Been seeing your videos on binge. I respect you for your work. Unfortunately I can't patron as I still am broke 😅 Keep up the good work, I'm tuned into for new vids. And, can you make a video on how to make an FM signal amplifier?

[@somsubharabhattacharya1212]

8:17 when porn buffers at the right moment 😂😂😂

[@HighTechHotties]

Lavalier mic's are the best. We wear them close to our hearts

[@HighTechHotties]

You can see the quality is the best

[@dryaldibread2327]

HighTechHotties to bad

[@414aliha]

You mean boobs?

[@dryaldibread2327]

414aliha whahahaaa😂😂😂

[@BartManNL]

I used an autogain lavalier close to my heart. When it was silent for a moments the autogain would kick in and the mic would pick up my heart beat

[@chrisl1446]

"I clip it to my pants or whatever's down there" why do we only see the top half of your body, medhi 👀

[@theemeraldpickaxe3991]

Your username makes me confused...

[@zanefadel150]

7:12 OMG I REMEMBER BIRDIE NUM NUM FROM THAT REALLY OLD MOVIE 😂😂

[@oshkosk]

I used to use 200Mhz radiomics for the stumps effects on cricket matches for tv in the ‘90’s. The antennas were at least 30cm long though and I held them up out of the pitch on little bamboo skewers.

[@rmertens123]

Roflol 5:57 can't stop laughing everytime

[@Juksemakeren]

0:18 - powerful ASMR

[@jinovinod9916]

this video is underrated!!! the moment when he got excited and we see rode's logo just had me😂😂😂😂😂😂😂😂😂😂

[@BasedBidoof]

It's crazy I couldn't tell at all when you switch the audio delays in the end. Mind blown

[@o0ooo0]

8:43 i cant get over this lmao

[@maciejprokop3730]

"I'M too cheap to buy a microphone" 2:20 :D I love u . We can be cheap together

[@owoo6]

Awww

[@muha0644]

6:01 HAHAHAHAH I LITERALLY DIED OMG

[@keithcheng6663]

6:54 What's up with my circuits and all this smoke? *BANG* 🤣

[@chrisyaya4338]

This guy is a legend :D

[@rafaelmoreira527]

Where you singing LesMis? Because that was amazing!

[@skinisdelicious3365]

Your voice sounds very crisp and there is no echo in your audio with this sysyem

[@thatkiddavidpalacio]

Nobody: Teachers testing if their microphone is on: 5:58

[@nathanw851]

I nearly died of laughter when you did "birdie num num." I don't reckon modern society would rate Sellers too highly though. haha.

[@manuel2539]

2:53 “and I can make it’s as long as my p uuhh proper antenna length” 😂😂

[@danek_hren]

-enis?

[@user-td7kl4zt5u]

Amazing video! We really want to see a video on how to make your own power amplifier which is output 1000w or more :P

[@jenniferloving9054]

Your videos are a highlight of my day!