Piezo speaker is thin yet with a broad frequency range
https://www.electronics-lab.com/piezo-speaker-thin-yet-broad-frequency-range/
Sound is produced by the PiezoListen piezoelectric speaker over a broader frequency range and with a greater output in the low range than any existing piezoelectric speakers, claims TDK. The speaker has an operating frequency range of 400 to 20,000Hz and achieves a high sound pressure of 80dB, even at low voltages of 24V peak […]
Ganymede MEMS Speakers can be retrofitted into standard enclosures
https://www.electronics-lab.com/ganymede-mems-speakers-can-retrofitted-standard-enclosures/
USound GmbH’s Ganymede Achelous and Adap MEMS speakers with their compact size of 4.7 mm x 6.7 mm x 1.6 mm are ideal for in-ear headphone designs and wearables such as true-wireless headsets. The perfect addition to traditional speakers, they can be easily retrofitted into standard enclosures to improve treble or implement 3D audio systems. […]
MEMS technology shrinks loudspeakers
https://www.electronics-lab.com/mems-technology-shrinks-loudspeakers/
Miniature MEMS-based speakers could revolutionize speech and music reproduction in mobile communication devices. They combine the advantages of a large frequency bandwidth and high acoustic quality with the ability to generate very high sound levels. Nevertheless, they are so tiny that they can be integrated into headphones. By Christoph Hammerschmidt @ eenewseurope.com The breakthrough has […]
Arduino IR remote and Software controller
https://www.electronics-lab.com/arduino-ir-remote-software-controller/
This is a DIY Infrared remote for speakers, replacing the original. Arduino Nano and controlled via a custom .NET application and placed in a laser cut enclosure. This one is an interesting one, it’s something we’ve been looking at for a while and figuring out how to solve it. We have sets of speakers and […]
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 […]
Visaton Exciter – an exciting loudspeaker
https://www.electronics-lab.com/visaton-exciter-an-exciting-loudspeaker/
A loudspeaker without a membrane which can be mounted on any flat surface solves aesthetical and technical problems. Fans of HiFi sound and similar „audiophils“ usually don´t cover their loudspakers and surely not their membranes. Firstly, to cover a beautiful top-class loudspeaker is almost a sin 🙂 and naturally all that stands in a way […]
Arduino playing the melody with the Sd card
https://www.electronics-lab.com/arduino-playing-the-melody-with-the-sd-card/
by sezgingul @ instructables.com: This project is in SD card loaded stolen melody is provided by command sent from the serial monitor. If you want to add the application var.siz 6-melody melody melody file must be the same as the name of the specified code name. The components are used: Arduino UNO, SD card reader, […]