A contact microphone is a small device that can be used to amplify acoustic instruments. Unlike the more common types of microphone, you do not sing or talk into a contact mic. As the name implies, it does its trick by making contact with a solid object and turning mechanical vibrations into electricity. Because a contact mic does not pick up all the ambient sounds in the room, it allows you to focus in on one instrument without interference or feedback.
If you wanted to amplify your acoustic guitar, for example, you could attach a contact mic to the body of the guitar. Commercial versions use a small suction cup. For this project, we will use gaffer tape.Audio Projects - Cheap DIY Microphone Upgrade (Quality Audio)
In fact, you may already have everything you need lying around the house. Piezos are used as lo-fi bleepy speakers in smoke detectors, old cellphones and computers, and handheld video games, and they emit a high-pitched whine when you give them some current. They also work the opposite way — in a beautiful bit of symmetry: apply current, get vibration; apply vibration, get current. That means the same device can be used as either a speaker or a microphone, depending on which way you wire it up.
This is actually an old trick. Plug in an extra pair of headphones into the mic input! Justin makes experimental electronic music with hand-built and modified instruments.
His band, Burnkit performs and gives workshops and presentations on the topics of circuit bending, chiptune and DIY electronics. Hi there! I was going to grab a few extra piezo discs on amazon. Make: Projects Piezo Contact Mic. Share yours: piezomic. Related Stories from Make:.
April 22,pm PDT. Or use a 3. Low-powered practice amp no amp? The sound will be quiet, but it still works. Heat-shrink tubing a piece big enough to fit over the piezo Gaffer's tape Electrical tape, Plasti Dip, or epoxy optional.
Project Steps View All 1. Aquire parts 2. Wire it up 3. Finish it up. Step 1: Aquire parts. Next Prev. Step 2: Wire it up. Step 3: Finish it up. Justin Emerson Justin makes experimental electronic music with hand-built and modified instruments.
Send this to a friend Your email Recipient email Send Cancel.The products on this page are all-inclusive DIY microphone kits. Just add solder and a few hours' time, and you'll be rewarded with an exceptional piece of audio gear.
The T provides a similar frequency profile but injects vintage mic 'mojo' thanks to its transfomer-coupled circuit. The is a slightly modernized take on the idea, with higher headroom and just a hint of even-order harmonics. The V is a more historically accurate recreation of the circuit, with higher levels of even-order harmonics for a more vintage sound. The V adds a pad and high-pass filter too. We've hot-rodded the famous Schoeps circuit. Choose this for high sensitivity, low noise, and a clean-and-pristine signal path.
The S-series kits formerly called the "RA" kits are named for the capsule and voicing. We've taken all the sonic magic of our acclaimed S series circuit, and added two external switches. The S3 series maintains the same high sensitivity, low noise, pristine signal path of the S series, built into a robust body.
The S3 kits include a hard case and shockmount. We took a vintage Neumann circuit, then optimized it for large-diaphragm capsules and even-order harmonics. The result is a spectacular vintage-circuit microphone with an extraordinarily simple signal path and a ton of texture. Choose this for vintage vibe. Our tube mic is an adaptation of the Telefunken ElaM circuit, although with higher headroom.
We use a low-noise tube and a custom-wound transformer. See also our custom tube mic power supply, which is available as an upgrade option for both these microphone kits.
DIY: Condenser microphone
Our custom SDC capsule is closest to the Neumann KM84 capsule in tone, but works beautifully with the transformerless circuit too, giving rich tone without high-frequency hype. You might have seen other DIY microphone kits that are comprised of indifferent, low-grade parts and a photocopied schematic that supposedly serves as the installation guide.
The products on this page are in a different league -- as are the finished microphones. S Microphone Kit. T Microphone Kit. V Microphone Kit. SDC Microphone Kit. Microphone Color Options Microphone-Parts.
S Microphone Kit Microphone-Parts. Sold out. T Microphone Kit Microphone-Parts. We use a different circuit than Neumann because it gives higher output, lower noise, and lower distortion, plus the ability to fine-tune high frequency response via EQ capacitors.
AKG C Telefunken ElaM Neumann U There is no such thing as a true "U47 clone" because the critical VF14 tube has been unavailable for 50 years. To achieve the coveted U47 sound, we've paired our K47 capsule with a very nice tube circuit that gets you into the sonic territory of the original mic at a fraction of the cost.I replaced C2 from the original schematic with a fixed capacitor of 15pF, and replaced C3 with 10pF because 4. Download Kicad project. I bent the collector and the emitter legs of the transistor towards the outside then i soldered the collector to the remaining leg of the coil.
Here i trimmed the unnecessary wires and bent and adjusted the left wires for the next step. I soldered Cpf in parallel with the coil. Then i soldered Cp between the collector and the emitter of the transistor. Now the Spybug construction is complete only two steps left, the tuning and hot gluing the components in place.
After playing with this circuit i found it very instable and is has a short range, the frequency drifts off if you get your hands close to the antenna or touch the circuit. Unless you want to have fun, learn, experiment or improve your soldering skills there is no need to build it for real spying.
Para entretenerce me parece interesante ,pero para usar por ej. You can use this formula : Or use this calculator. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment.
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Piezo Contact Mic
We are shipping orders daily. Everything is in stock except for the SDC microphone kits; those are expected by Apr We will be announcing two new products over the coming weeks also. Sign up for the mailing list to access early product announcements and introductory pricing. DIY is a fantastic way to build a collection of great studio gear.
There is simply no better deal in the world The biggest barrier to entry is experience. Soldering is not difficult, but you will need to practice. That's why we recently introduced this low-cost soldering practice kit and the series of video tutorials linked above.
See also this ranked list of DIY microphone projectsfrom easy to challenging. We believe microphones are essentially EQ devices. We can help you build some extraordinarily musical variety into your mic locker. Each kit includes an unbranded mic body, custom PCBs, premium components, best-in-class documentation, and the large-diaphragm capsule of your choice.
Our most popular capsule is a K47 style, modeled after the capsule in the Neumann U Our circuit replacement kits let you turn inexpensive microphones into professional-grade studio workhorses. See our directory of mic mods to find options tailored to your specific donor microphone. We build custom mics to order, based on our own microphone kits and upgraded with un-published mods. Contact us if you're interested. Do you have questions about a potential mic mod?
We've built thousands of mics over the past 10 years. Chances are we can help you out. Find a direct email address for us here. Large-diaphragm replacement microphone capsules Our most popular capsule is a K47 style, modeled after the capsule in the Neumann U Circuit replacement kits Our circuit replacement kits let you turn inexpensive microphones into professional-grade studio workhorses.
Hand-built Boutique Microphones We build custom mics to order, based on our own microphone kits and upgraded with un-published mods. Free Consultation Do you have questions about a potential mic mod?Using the microphone of your mobile phone to control the led cube according to the loudness decibels.
Teach yourself perfect pitch with the PPM! Use Python, sound, and buttons to make a pitch pipe on a Circuit Playground Express! With this project, you can listen to your honey's voice everyday for free if you have internet. It's very simple and less price. It can be hard to measure environments that can affect your hearing over time. This wearable monitors environmental sound levels. A wireless microphone is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with Have you noted the main cause of Bee mortality is associated with death caused by its attack?
LittleBee senses and how Bees are aggressive! Log in Sign up. Clap switch. L'abeille vie. Victor Altamirano and EdOliver. Perfect Pitch Machine. Ethernet Voice Streaming. The Clapper! A simple sound monitoring system using a microphone and a small amplifier with LM Sound monitoring system. Spresense Audio Scope. Personal Hearing Safety Canary. M5Stack and Micro:bit can control each other, thanks to the M5:Bit. M5Stack X Micro:bit.Not a member? You should Sign Up. Already have an account? Log In.
To make the experience fit your profile, pick a username and tell us what interests you. We found and based on your interests. Choose more interests. What and why? I wanted a directional mic. The most simple solutions are : directional electret mic, parabolic mic and interference tube mic. Since I only have an omnidirectional electret mic and wanted something as compact as possible, I went for the interference tube solution.
An interference tube is a tube with the mic placed in one end, facing the other, wich is open. From the open end, to the front of the mic, there is slots regularily spaced.
These slots let the side and rear sound waves propagate in the tube. But inside, the waves have different path lengths from the slot they entred by to the mic.
The result is that the waves cancel themselves. The side frequencies that are filtered depend directly of the sloted part length. The camera has a 3. The internal circuitry is capable of driving standard electret mic.
There is nothing special to do, it's perfect for me.Victor Frost. Alistair MacDonald. Hari Wiguna. Brenda Armour. Adam Sifounakis. Robin Hartley. Rob Grizzard. About Us Contact Hackaday. By using our website and services, you expressly agree to the placement of our performance, functionality, and advertising cookies. Learn More. Your browser Internet Explorer is out of date. Update your browser for more security, comfort and the best experience on this site.
Official Hackaday Prize Entry. I want to make a sampling keyboard with the parallax propeller. Project Owner Contributor Sample Keyboard zuul.
Project Owner Contributor Let's make some signal processing with an arduino amiravni. A simple phone holder that fits on a microphone stand. Audio Games for the Visually Impaired. No screen? No Problem! The Hackaday Prize. This is a versatile system of hardware and software to evaluate outside weather conditions vs inside weather conditions. An echo-canceling, far-field, linear array microphone for speech recognition and voice communications projects. Project Owner Contributor Acusis Jim. Vintage Lafayette and Shure Brothers microphones restoration.
Localization and tracking for robots using a microphone array and digital signal controlller. Building a Shotgun Microphone from scratch. From Modifing an electret capsule to building an interference tube. An Arduino clap controller you can retrofit to a UK light switch. Great for home automation!
17 Projects tagged with "microphone"
This project computes angles of arrival for two PS Eye microphone arrays and plots lines representing the sound source. Motion, sound, and light interactive LED sculpture powered by the Pixelblaze controller. Sound in, sound out.
Now both on one FeatherWing. Ok, I agree.