Low Voltage Microphone Preamplifier with Variable Compression and Noise Canceling
https://www.electronics-lab.com/low-voltage-microphone-preamplifier-with-variable-compression-and-noise-canceling/
This is a complete microphone signal conditioning project. Designed primarily for voice-band applications, this project provides amplification, limiting, variable compression, and noise gate. User-adjustable compression ratio, noise gate threshold, and two different fixed gains optimize circuit operation for a variety of applications. This is a complete and flexible solution for conditioning condenser microphones for personal […]
Microphone Preamplifier – Sound Sensor
https://www.electronics-lab.com/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 […]
TDK launches 3 new MEMS microphones for mobile, IoT and other consumer devices
https://www.electronics-lab.com/tdk-launches-3-new-mems-microphones-for-mobile-iot-and-other-consumer-devices/
TDK Corporation introduces three new MEMS microphones as part of the SmartSound™ family of products for mobile, IoT and other consumer devices. Each of these high-performance microphones push the boundaries of microphone acoustic performance, providing advanced feature sets with very low power in small package footprints. The SmartSound family of MEMS microphones from TDK are […]
I2S USB Microphone using STM32 and MEMS Microphone
https://www.electronics-lab.com/i2s-usb-microphone-using-stm32-and-mems-microphone/
Virtual desktops are used extensively in the IT sector currently due to the COVID-19 pandemic. This set-up allows the employees to work remotely and is convenient. Virtual desktops are preconfigured images of operating systems and applications in which the desktop environment is separated from the physical device used to access it. Users can access their […]
Piezo contact microphone picks up voice through bone
https://www.electronics-lab.com/piezo-contact-microphone-picks-up-voice-through-bone/
Vesper of Massachusetts is claiming high fidelity for a MEMs piezo microphone that picks up the vibration of the user’s voice through the skull. Inside are the mems, an amplifier, and a power regulator. Called VA1200, the company describes it as “the world’s first analogue piezoelectric voice accelerometer. Unlike a traditional microphone, the VA1200 is […]
Knowles IA611 SmartMic Voice Wake Audio Processor
https://www.electronics-lab.com/knowles-ia611-smartmic-voice-wake-audio-processor/
Knowles IA611 SmartMic Voice Wake Audio Processor features an “always-on” Processor providing a Voice Wake and Voice ID keyword detector, a two-second buffer, and Knowles’ proven high performance acoustic SiSonic™ MEMS microphone technology in a single, miniature, top-port package. The Knowles IA611 SmartMic Voice Wake Audio Processor offers flexibility by supporting the most relevant audio […]
Reality AI’s Automotive SWS features Sound-based Detection
https://www.electronics-lab.com/reality-ai-automotive-sws-features-sound-based-detection/
Detection through cameras and lidar could be efficient but it has some drawbacks. As it requires visibility of the object within its range, thus detection is difficult for invisible and hidden objects. Radar could be an ideal choice for overcoming these drawbacks but it struggles with distant objects as it is incapable of the corners […]
IMP23ABSU – Analog bottom port microphone with frequency response up to 80kHz
https://www.electronics-lab.com/imp23absu-analog-bottom-port-microphone-with-frequency-response-up-to-80khz/
IMP23ABSU – Analog bottom port microphone with frequency response up to 80kHz for Ultrasound analysis and Predictive Maintenance applications The IMP23ABSU is a compact, low-power 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 to produce audio […]
MP23DB01HP – MEMS audio sensor multi performance mode digital microphone
https://www.electronics-lab.com/mp23db01hp-mems-audio-sensor-multi-performance-mode-digital-microphone/
The MP23DB01HP is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface with stereo operation capability. 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 […]
MEMS analog microphone sport high dynamic range, low power consumption
https://www.electronics-lab.com/mems-analog-microphone-sport-high-dynamic-range-low-power-consumption/
TDK introduces the InvenSense ICS-40638 MEMS analog microphone. The ICS-40638 microphone offers an ultra-high Acoustic Overload Point (AOP) of 138 dB Sound Pressure Level (SPL), exceptionally efficient 170 µA low power operation and high Signal to Noise Ratio (SNR) of 63 dB in a small 3.5 mm x 2.65 mm x 0.98 mm bottom port […]