Microphone Preamplifier – Sound Sensor
This is an easy to construct dual-stage microphone pre-amplifier. The project can be used as a sound sensor or microphone pre-amplifier. The 1st op-amp pre-amplify the very low-level signal coming from the condenser microphone and 2nd op-amp provides more boost to the audio signal. The pre-amplifier is an important building block for many audio communication systems and sound sensors. The circuit has been built around OPAMP LM358. The output signal level is dependent on the input sound level. The maximum peak to peak output is 2Vpp.
Microphone Preamplifier – Sound Sensor – [Link]
View all comments
Join 97,426 other subscribers
Aaeon AI Arduino ARM Battery BLE Bluetooth camera DC-DC display ESP32 ESP8266 FPGA GPS I2C IoT Kickstarter LCD Led Linux Mcu MEMS Microchip Microcontroller MOSFET Motor OLED Oscilloscope PCB Power supply PWM Raspberry Pi regulator RISC-V SBC Sensor SOC SOM STMicroelectronics Switching temperature Texas Instruments TFT USB Wifi