ESP-EYE – AI Developement Board Based on ESP32
https://www.electronics-lab.com/esp-eye-ai-developement-board-based-esp32/
ESP-EYE is an upcoming AI development board from Espressif Systems with the hope of getting a grab of the already saturating machine learning ecosystem which is mostly optimized for ARM-based architectures. The ESP-EYE board which initially appeared on CNX Software doesn’t seem to be readily available for purchase. At the core of the board is the ESP32 […]
IMP34DT05 – MEMS audio sensor omnidirectional digital microphone
https://www.electronics-lab.com/imp34dt05-mems-audio-sensor-omnidirectional-digital-microphone/
The IMP34DT05 is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface.The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to producing audio sensors. The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit […]
MATRIX Voice: Open-Source Voice Recognition
https://www.electronics-lab.com/matrix-voice-open-source-voice-recognition/
MATRIX Voice is a”Voice Recognition” development board, designed for the Raspberry Pi or Stand-alone with ESP32 (WiFi/BT/MCU) MATRIX Voice is an open-source VOICE RECOGNITION platform consisting of a 3.14-inches in diameter dev board, with a radial array of 7 MEMS microphones connected to a Xilinx Spartan6 FPGA & 64 Mbit SDRAM with 18 RGBW LED’s […]
Acusis – array microphone for speech recognition
https://www.electronics-lab.com/acusis-array-microphone-speech-recognition/
An echo-canceling, far-field, linear array microphone for speech recognition and voice communications. Acusis is a simple-to-use, complete solution for improving the audio quality for your speech recognition or video communications project. It solves multiple audio issues in a single device that mounts on a TV or monitor and hooks up to your Mac, PC, or […]
Tiny Professional Microphone Preamplifier
https://www.electronics-lab.com/tiny-professional-microphone-preamplifier/
The board has been design around INA217 low distortion, low noise instrumentation amplifier. The INA217 is ideal for low-level audio signals such as balanced low-impedance microphones. Many industrial, instrumentation, and medical applications also benefit from its low noise and wide bandwidth. Unique distortion cancellation circuitry reduces distortion to extremely low levels, even in high gain. […]
Low noise Mini Electret Microphone PreAmplifier
https://www.electronics-lab.com/low-noise-mini-electret-microphone-preamplifier/
The single supply microphone pre-amplifier amplifies the output signal of an electret capsule microphone to audio line levels. An op amp is used as a trans-impedance amplifier to convert the output current from the microphone in to a signal level voltage. The circuit works with 9V so it is good choice for battery operated systems. […]
Voice Changer
https://www.electronics-lab.com/voice-changer/
Voice Changer project can be used to transpose or distort one’s voice by encoding the sound appearing at the Microphone input. This project is built around AP8072 IC. Specifications Supply input : 6 VDC @ 200 mA Output : Speaker, 8 Ω / 0.5 W Audio amplifier type LM386 with volume control preset Jumper selectable […]
Tiny Mic Preamplifier
https://www.electronics-lab.com/tiny-mic-preamplifier/
The Tiny Mic Preamplifier based is based on a single transistor amplifier design. It amplifies the output of the electret condenser microphone. Good choice for Karaoke. Specifications Power supply: 5 ~ 9 VDC @ 2 mA Provides standard audio signal PCB dimensions 26 mm x 56 mm Tiny Mic Preamplifier – [Link]
KaraOkay Microphone Amplifier
https://www.electronics-lab.com/karaokay-microphone-amplifier/
Here is an all-analog, all-through-hole, cheap & cheerful preamplifier for that perennial problem of getting the microphone amplification just right, which is a challenge not only with the faithful reproduction of lead vocals during concerts and recordings, but also with campfire and karaoke-ish performances specially when the beer takes hold. KaraOkay Microphone Amplifier – [Link]