Content for Microphone

Microphone

A microphone, colloquially named mic or mike (/maɪk/), is a device – a transducer – that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting, and in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic sensors or knock sensors.

CRIUS Wireless Sound Reactive RGB LED PANEL (WS2812b)

“The Crius Wireless RGB LED Panel is designed to be portable and wireless so it’s based on a DFRobot ESP32 IOT Development board (Firebeetle v4.0) that is equiped both with bluetooth and Wifi and also with an onboard …

Audio Spectrum Visualizer Using Arduino & Matrix Display

“An audio spectrum visualizer using Arduino and matrix display is a device that displays audio frequencies in real-time through a pattern. An Audio Spectrum Visualizer is a device that displays the frequency components of an audio signal in a visual …

ESP8266/NodeMCU/ESP32 Audio Recorder

“ESP8266 has an ADC input which is a 10 bit analog to digital converter and this pin is the audio signal input for the “ESP8266 Audio Recorder” project. This project is an arduino (c-language) source code, which is a firmware …

NodeMCU, ESP8266 and ESP32 Spy Microphone Arduino code

“Here is another update for the “ESP Spy Microphone” project which is ESP8266/NodeMCU and ESP32 WiFi microphone arduino source code, revision 1.5. In this update I have increased the audio stream recorder sample rate to 240KHz for both …

Make Your Doorbell Smart With an ESP8266

“Hello and welcome to this guide! Today let’s see how we can turn an ordinary front door bell into a smart doorbell, so a doorbell that’s connected to our smart home ans so to our smartphone. This idea …

ESP WiFi Spy Microphone (ESP32 and ESP8266)

“I recently have updated “ESP WiFi Microphone” project to rev 1.3 and now the revision 1.4 is available which is stronger and more stable than rev 1.3. This project is compatible with both of ESP8266 and ESP32 …

Custom Trombone Kazoo Controller for Trombone Champ

“How it works The Time-of-Flight (ToF) sensor measures the approximate distance between the main trombone section (bell brace) and the slider brace. It sends this data over USB Serial to the PC running my custom software, which combines this with …

Sound Reactive Rib Cage

“A hand-carved wooden rib cage with a heart of LEDs. The lights have several modes including a sound reactive heartbeat to the music. Use 3D model of a rib cage to find shape of each rib I chose this 3D …

8x8 Dot Matrix Sound Level Meter

“Previously I introduced Arduino base Sound Level Meter circuit (From hereinafter as SLM) circuits using simple LEDs. This time let’s change the visual effect with a more multifunctional 8x8 LED dot matrix display. Although the previous SLM used Adafruit …

Inexpensive Microphone amplifier circuit

“A small microphone amplifier circuit using operational amplifier in single power supply mode. Thinking a little bit on audio recording device, Mic section attracted my attention. In mobiles inbuilt amplifier is enough to record the sound via external microphone. That …