how to make a mic out of electronic waste?

A homemade mic

Asked by rattlehead 8 years ago

How do i rig a simple mic to a speaker.?

This year I'm making my own Halloween costume and the head piece I'm making will not have a good voice projection through the mask. I just want to put a mic on the inside and incorporate a small speaker on the outside.?

Asked by numunk 7 years ago

Microphone sensitivity range?

Can a normal microphone as present in most headsets detect noise levels below and/or  above human audible frequencies. And if so  is it possible to see the audio waveform for such noises using such a mic?

Asked by muhammajunaid 6 years ago

how can i build a microphone preamplifier?! Answered

Emmm, hi . I need to make a low noise/simple microphone preamp for both electret and dynamic .it would be perfect  if it could be powered with something other than battery , like an adaptor or 1394 port form my computer , mic in jack or anything else. I have an external sound card with +48v phantom power switch (ECHO, Audiofire4). can anybody help me in making any of them (electret and dynamic)? and ... ics that i have now , are a little old. thanks alot... 

Asked by whooms 8 years ago

Does the ipod touch have a mic? Answered

If not, can you use the mic on the headphones that have a mic on them?

Asked by JellyWoo 9 years ago

Xbox 360 mic like wii speak?

Hi i was wondering if anyone knows how to turn a 360 mic wired or wireless into a mic like the wii speak. It would need to be able to output the audio louder and have a more sensitive input. Any Help?

Asked by DMACHINE188 9 years ago

Help identify points on circuit board?

Hi, I got a 3.5 stereo adapter and mic cable for a cell phone. I want to convert it from the non-standard cellphone jack into a 3.5 stereo jack so I can connect it to the mic jack on my computer. Is it possible? I need to figure out what the wires lead from. There also seems to be a fiber optic(?) wire. Circuit pic: mic/switch pic:

Asked by phillyj 6 years ago

Microphone how?

I was wondering, How could I turn an old speaker into a microphone?

Posted by batboy61490 10 years ago

Wireless headphone with Microphone

Can anybody tell me how to make a wireless headphone and microphone. Both microphone and headphones should be wireless. I found that one can buy a wireless headphone or a wireless microphone, but not a combination of both. Why I need it. I make long phone calls, during which I need to walk around. If I use a cordless phone, I have to keep holding the receiver with one hand all the time. If I use a speakerphone, everybody around listens to the conversation. Therefore I need one wireless headphone with mic.

Posted by anilsaxena 10 years ago

Wiring a 2 way radio headset to also record audio?

I am a hang glider pilot and like to take videos during flights. I would like to add narration and the back and forth communication with my chase driver as part of that. I have a headset in my helmet that is wired to a ham radio for that communication. The jack to the helmet is a three conductor, 1/8" jack that goes to the earphones, microphone and a common ground. There is a push to talk switch that trips the radio to transmit which is between the helmet and the radio. What I would like to be able to do is put a jack/splitter inline with the existing jack to then go into the mic jack on a voice recorder to get three things; Radio audio (receive), Radio audio (transmit) and me just talking into the headset mic - Narration.Not sure how well I am explaining this and I could just experiment, but I am thinking it's not as simple as just wiring stuff together. I'm good with a soldering iron, but no EE by a long stretch. Any thoughts? Thanks

Asked by hang4 6 years ago

Mic convert

How to convert laptop mic to usb is that possible????

Asked by Mr Qatanani 2 months ago

how to build a shockmount for this mic holder??

i want to build a boom mic,i got everything BUT.....the mic always slide from the holder. i want to make it stay put with a mount but how? heres the holder

Asked by mastermakoko 8 years ago

Mic amplifier for ambient sound?

I need a way to pick up distant sound at the mic. I hear output only when i talk too close to mic

Asked by Ejay11 8 months ago

How do I replace a mic with an aux input? Answered

I just bought a small Fm transmitter kit that doesn't come with an aux input. Is there an easy way to replace the mic with an aux input or an aux wire? Thanks a lot!

Asked by DELETED_DELETED_DELETED_16nato 5 years ago

my mic for the xbox stopped working Answered

We bought a new headset but it still doesnt work and we have one of those fan attachments for it and ive only had it for three years

Asked by taowyman 5 years ago

how to make a direct mic to speaker setup?

I am trying to run a microphone directly to a speaker and I am having some troubles with how to integrate battery or 12v DC power into it. Any suggestions would be greatly appreciated.

Asked by nrepak 8 years ago

How to join a 3.5mm Jack to a Microphone ?

I want to make it to use it as a Mic.

Asked by Milin 18 5 years ago

Headphone output into mic input?

I've got a cheap voice changer that is hard-wired to a computer-style microphone. I cut off the mic and added a 1/8" miniplug adapter, so as to increase flexibility. I need to connect the powered headphone output of an mp3 player to this voice-changer, what is the easiest way to do so? I tried an attenuator I had lying around, but got no results (are attenuators one way?) is there a good (cheap) solution to this problem?

Posted by gschoppe 10 years ago

A preferred source for buying microphone elements?

I have a vintage microphone that is in pretty poor shape. The coil inside the element has broken off on one side and I would have to slightly unwind the coil in order to be able to pass the magnet wire back through far enough to reattach it. On top of that, the transformer inside the mic was wired in a very odd manner and someone has clearly tampered with it, so who knows what has been done to it. I am considering buying a new dynamic mic element and replacing the old one with it entirely. Can anyone recommend a preferred source for buying decent mic elements without having to but a whole microphone? At that, anyone know where to buy vintage mic elements?

Asked by randofo 7 years ago

How Can I Make A Controller with a built in mic

My xbox 360 headset was crap when i bought 360 the ear piece fell of so i cut the end of the wire attached to the headset.#3 is gone And The Wire In between #1 And #2 i have. So how could i build it into the 360 controller?

Posted by nameless 10 years ago

Looking to build a remote controlled mic stand

Want to build a remote controlled mic stand. Needs to have ability to hold 2 lbs and somewhat accurately make movements in increments of 1/8" at a time. I have no skills in building such a device. Looking to pay someone to build one for me immediately. I am very serious about this. I have seen others who have built such a device, but none worthy for sale as of yet. I wouldn't be past investing in marketing of such a device if something working comes of this. Jimmy

Posted by jimmys69 4 years ago

Is it a good idea to wire an ELECTRET mic in parallel? What are the advantages and disadvantages? Answered

I already made a prototype of a low-noise desktop microphone (with an internal 5 stage transistor preamp). It only had one ECM capsule inside. A few days later I found a couple of pictures of a certain microphone with two ECM capsules wired up in parallel. It made me wonder, will it increase the sensitivity of the mic while reducing noise or will do the exact opposite? Is is a bad idea to hook six of these in parallel? Sorry, I'm not an expert when it comes to microphones. Before I post a guide, I wanted to make sure of what I'm saying.  The Reason: If you are familiar with the Blue Snowball USB microphone, you'll be surprised on what's in it. I recently discovered that it has two "Electret Condenser Mic Capsules" soldered in parallel. I thought there was something special about the Snowball since the reviews went crazy (4 1/2 stars on amazon)! I was expecting a huge diaphragm, but no, it only had two tiny ECM mics soldered on a Preamp + USB DAC. Lesson learned! Never underestimate an ECM mic.  ______________________ The picture is my prototype, it's working great right now. Luckily, the 5 stage preamp is giving zero noise. I'm planning to add a USB D.A.C. and an ECM array on my final version.

Asked by ASCAS 4 years ago

microphone wiring?

Ok i was wondering if i took a microphone that was real cheap from walmart and take the male part off the end of it and put a female part so that way i can plug in a dual male sided cord to it and then to my computer, more or less im wondering, can it work like that? and then i was wondering if there is a program that when i plug the mic in that it works like plugging a guitar into an amp, as in it plays the input to the computer outloud without being in playback from a recording

Asked by ClemensY290 9 years ago

Can i connect two xbox 360 headsets together so two people can hear and use the mic during online game play?

What i want to do is basically "piggyback" one set off of another i have the basic wired headset that comes free with 360 purchase. This is my first time on the site so sorry if im not being clear enough! any other questions just ask

Asked by schmit22 6 years ago

Simple 'Megaphone' like voice amp?

If I wanted to create a simple voice amplification unit, what materials would I need and how would they be wired?

Asked by GreenPhantom 9 years ago

Headset Confusion?

I bought a turtle beach cable to use my x31 on my pc. I managed to finaly get the mic to work but the sound  quality is less then that of the wirlress one I bought the cord to replace. Im not sure if its the 3 different levels it go's through or faulty cord.  Any suggestions? I allso have 3 audio jacks. Anyone have a clue what the third could be for? 'Info Gracias

Asked by zigzagchris 7 years ago

make a throat mic?

I want a throat mic for paint ball or anything else involving loud environment or when i need to be quiet.  the problem is they are expensive so i was wondering if anyone could help me in making one

Asked by abadfart 8 years ago

Phase Cancellation to Prevent Feedback

The Grateful Dead's wall of sound prevented feed back by having two mics for each vocalist with one of the mics 180° out of phase of the other. Then mixing both mics on the same channel. So the only information that wasn't canceled was the voice.  This gave me an idea. I took a handset and added a mic facing backward from the existing mic. Then wired the second mic out of phase. Apparently there's more to it electrically then just wiring the other mic backwards because the handset went dead. Is this possible with just parts salvaged from old phone equipment?

Posted by AJRimmer 5 years ago


I've got a 2 channel color organ with an electret mic for input. I'd like to be able to remove the mic and run it directly from one side of a stereo output from a cd player. I know I need to have something there to replace the mic, but I'm an audioidiot. Thanks. BTW, this is for a puking skeleton for Halloween. The color organ will drive the pump, while the audio will be, well, the audio.

Posted by oobadooba 9 years ago

How to make a simple microphone circuit? Answered

I want to make a simple circuit with a microphone that just takes your voice and sends it to a speaker. I just want to understand how to hook up a mic.  I know it will either be very quiet or silent, but like i said, i just want to know how to connect it. (I already know how to make the amp.)Thanks in advance. -Julian

Asked by jules15 8 years ago

Shure SM7 Cartridge.?

I would like to get an SM7 for my bands brutal metal vocals (its an ideal studio mic for them) And dont want to spend all my money... The cartridges are significantly cheaper. I was wondering if i could buy a cartridge, and solder it to an XLR jack, and mount it all in a PVC pipe or a similar project box. Want to help me out?Here is the cartridge link: you for your time!

Asked by iamtoats 9 years ago

Public Address System build Project

Salam and Greetings everyone, I am a university student and I need to build a good quality PUBLIC ADDRESS SYSTEM using simple 3.5mm jacks for mic input and spkr output and giving output on 2 to 5 speakers and controlling the output to speakers through switches enabling individual use and all at once  I would appreciate all help in form of advice, suggestions, links to websites and blogs, or text files videos anything... Thank you everyone in advance....

Asked by General Talha 4 years ago

Blue Microphone Recognized by Pc But Not Working?

Okay so here is my problem I just bought a blue SNowball for my Windows 7 pc I know alot of people have issues with it but heres my problem. I got it plugged it in it says installing drivers then says failed to install drivers yet it recognizes it as a usb audio device but it just shows up in my devices and printers as unassigned with a caution symbol next to it. The thing is there are no drivers for this mic because it is plug and play, I also have tested it in different usb ports to no avail if anyone could help me thatd be great.

Asked by Pinion Props 3 years ago

how do i start a project using a microphone to cause a servo to "sweep" depending on the sound level?

I really want to make a servo rotate like when using the sweep code but with a microphone instead of a potentiometer. the servo would move depending on the decibel level and return to it's default position once the noise stops. i can code myself but i don't know where to start and i can't understand the microphone related code parts, i could really use some help with getting started, i would be greatful on many levels. EDIT: i scraped this together but it doesn't work exactly how i want it to #include int micPin = 1;    // select the input pin for the mic input       // select the pin for the LED int micValue = 1;  // variable to store the value coming from the mic Servo servo09; void setup()   {                        servo09.attach(9);    } void loop()                     {     micValue = analogRead(micPin); // use what ever threshold between 0-1023 you wish to switch  the led         if (micValue > 2)     {                         servo09.write(10);         delay(1);     }     else     {                         servo09.write(100);         delay(1);     } }

Asked by katman101 3 years ago

How do I combine multiple audio signals? Answered

I'm trying to splice in the output from an mp3 player into the microphone of Xbox headset. I've had no luck simply inserting it into the circuit, is there something else involved? Sincerely, Bean

Asked by meanbean 6 years ago

Will this schematic work for a simple microphone with a two way toggle and LED's to show on/off status?

I don't know resistance needed I'm pretty sure once I plug the 3.5mm to 3.5mm cable into the female jack that it gets 5 volts of power, otherwise any help in this design would be appreciated as I'm trying to make a microphone that doesn't have its own cord to bypass having to solder or replace a microphone every time my cat feels the need to chew small wires.

Asked by tgreathouse 6 years ago

building a HD Audio front panel for my PC. Audio circuit?

Hi! I have problem with my computer. the motherboard has HD-Audio but the front panel is the usual AC97 standard. You can change the BIOS config so the front panel audio connector acts as an AC97 one, but then the problem is the speakers connected to the back keep playing even if you connect a set of headphones to the front panel. The reason is the audio jacks used for HD-audio are different from regular jack connectors (and very rare to find!). While the insertion of the plug in a regular jack connector results in breaking a circuit (and so, physically muting the loudspeakers), in an HD Audio jack, the insertion of the plug results in closing a switch (sending a signal to the driver ordering to mute the speakers by software). I managed to create a sort of HD audio Jack by combining a regular jack connector and a zero pressure micro-switch so when the plug enters the hole, a tip inside the hole closes the micro-switch. I wanted to make a good quality front panel so instead of just wiring the jack connectors (and micro-switches) to the cable, I decided to add an EMI filter. I took the circuit from this doc: and more precisely from fig 6 at page 25. The circuit uses two 220 pF capacitors and two inductors for each jack connector. In this aspect the circuit is identical to that proposed for AC97. The problem is I have no idea what inductors to use or how to ask for them at the shop. All the diagram says in a footnote is: ZL should be 600 Ohms or greater @ 100MHz with a low Q (broad Impedance curve over frequency) but not even the guys at the shop knew what piece to give me. So what I did was to cannibalize the inductors from two cheap promotional radio receivers with jack connectors for the headphones and use them for my circuit. After all, they perform the same function: filter the audio signal at the headphone connector so I supposed they should have the correct values I needed. But my circuit is very noisy! headphones have a constant electronic background noise (that seems to react to things like mouse movements, hard disk activity or whiteness of the screen) and microphone has a lot of noise (of course I'm using very good quality mic+headphone). The cables are audio cables for front panel audio so they are supposed to be correctly shielded so the problem is in the circuit at my custom board. I would like to make a tutorial (including HD Audio connector construction) once the front panel is working properly but I don't know how to fix it. Any ideas?

Posted by jedikalimero 6 years ago

Can I replace/modify the Vado HD's internal mic?

I just got a new pocket camcorder; the Vado HD. It's the second generation, which means it has no input jack for an external mic. Could I pop the camcorder open, remove the internal mic and solder on an audio input jack in its place? would there be consequences?

Asked by magnum-colossus 7 years ago

codevison to programe atmega16 mic

I m using codevison to programe atmega16 mic for a lcd display.....dont knw d prog....could u help me with a test prog?

Asked by lcdproject 8 years ago

Xbox 360 built in controller mic

I have a xbox 360 controller,wire to xbox 360 headset,and an orignal xbox head set.Can I Put the headset in the controller and the mic?

Posted by nameless 10 years ago

What kind and how many mics needed to record on cassette tape on Emerson model AS2650?

Bought an old Emerson AS2650 Radio,Phone,Cassette Recorder Player.  Want to record externally from a mic; but manual just says to plus in "2" mics.  Why two and is there a certain type?

Asked by frkdrtap 8 years ago

How to make my dynamic mic pre-amplifier circuit work? Answered

Hello everyone, recently I'm making a sound box that have a sub-woofer sound system that works pretty fine, but for my usage I need to add a dynamic mic input which needs a pre-amp. before sending the mic signal to the sub. aux. I found this circuit and tried to apply it, I didn't get anything at all, but the surprising thing that when I connected an electret mic, it worked like a charm ! So, what is the problem I'm missing ! if anyone have any Ideas or better circuits for my purpose please feel free to give any ideas, thanks :) Note : even the electret mic didn't work before I canceled the capacitor after the mic input, I'm using uA-741NC @ 12V.

Asked by Hawk-Eagle 2 years ago

Creating heart beat from mic input?

Hai guys.. I'm doing a project to get the heart beat through a mic... So I connected the top end of a stethoscope to a tube and the other on of the tube to mic (seal tight). The mic is an Arduino mic module. Using anlogread function I'm getting an input with lots of numbers and when plugged into to direct audio to my Mac I hear the heart beat. What I want is to see the bpm from the reading that I'm getting from the Arduino not just random numbers. Is there any way from doing this? Thank You in advance... 

Asked by RamalN 2 years ago

Is it possible to modify a Bluetooth Receiver to use inline microphone of stereo earbuds instead of unit built in mic?

For years I have been using Bluetooth Receivers such as this Sony : The problem is they all have built in mic which I don't like, I prefer to use the online mic on my wired earbuds headset. So question is if I were to disassemble the bt receiver device and disconnect the built-in mic would it then let me use the inline mic on my on my earbud headset?

Asked by laingman 26 days ago

Brass/Sax Cheap Mic Setup

I have made a cheap setup that attaches to your instruments bell and provides a clearer sound then a mic mounted on a desk. Oh did I mention it cost me about $2.00- $2.50? Please let me know if anyone is interested in an Instructable on this?

Posted by LinemenOwn 9 years ago

How do i wire a condenser mic into my audio input of my PC/Computer? Answered

Ok, I answered it myself but I looked long and hard so hear is one option for connecting a condenser mic to a pc. This is 20 year old microphone that shipped with my family's Apple LC in 1992.  The mic works well with one of my laptops audio card... Not sure what the Zenner diode value is but its probably pretty small. I measured the voltage across the mic + to ground and it was 3.5volts. I saw another guy that only found a diode on his condenser mic so maybe newer audio cards can work without all the extra parts...

Asked by hydronics 6 years ago

How to mod a "Sensational headset with mic for xbox 360"?

I bought a sensational headset with mic for my 360 and it doesnt work well. I bought it cheap on ebay for around 11 cents. I have another phone headset that works, but the earpiece rarely produces sound. I want to combine the headsets so i can hear through them and talk too. Any suggestions?

Asked by mortuusvi 8 years ago