MEMS technology shrinks loudspeakers
Audio

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...

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Low Cost/Voltage 3W Class-D Stereo Audio Amplifier for Portable Gadgets
Audio

Low Cost/Voltage 3W Class-D Stereo Audio Amplifier for Portable Gadgets

This low cost low voltage 3W class-D stereo amplifier is based on PAM8403 IC, The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filter-less architecture allows the device to drive the speaker directly,...

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Adafruit Feather 328P – Arduino Uno on the Feather Family
Audio

Adafruit Feather 328P – Arduino Uno on the Feather Family

Adafruit Feather 328P is the latest addition to the ever-expanding feather family boards manufactured by Adafruit. The Adafruit Feather development boards are a set of development boards made by Adafruit that can either be standalone, stackable or both. The feather boards all includes a...

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World’s Smallest MEMS Micro-Loudspeaker Saves 80 Percent More Energy
AudioParts

World’s Smallest MEMS Micro-Loudspeaker Saves 80 Percent More Energy

STMicroelectronics along with the audio company USound has created the first MEMS (Micro ElectroMechnical Systems) micro-loudspeaker based on semiconductors. It’s the smallest loudspeaker in the world, but it can produce a powerful noise. MEMS makes it possible. The speakers are...

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The Little Buddy Talker – Arduino Compatible Speech Chip Set
ArduinoAudio

The Little Buddy Talker – Arduino Compatible Speech Chip Set

Small, versatile, fun, and inexpensive! Use the 254 word library to bring speech to your Arduino projects! Speak, Arduino, Speak! About a year ago, I designed an Arduino shield that allowed for you to add voice to your electronic designs.  I've since been able to minimise that design...

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XMOS VocalFusion- Background Noise Not a Problem Anymore
AudioIC

XMOS VocalFusion- Background Noise Not a Problem Anymore

  XMOS is one of the many companies that has ventured in voice recognition technology. They created the VocalFusion XVF3500 device, the first voice processor to have true stereo-AEC support in a far-field linear microphone array solution. Voice recognition is a relatively new...

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Hi-Fi Stereo Headphone Amplifier using LME49600
Audio

Hi-Fi Stereo Headphone Amplifier using LME49600

This project is the ideal solution for high output, high performance high fidelity stereo head phone amplifier. The project consists of Op-Amp LME498720 and LME49600 as output driver. The LME49600 is able to drive 32Ω headphones to a dissipation of greater than 500mW at 0.00003% THD+N...

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Design of a Korg Nutube Amplifier
Audio

Design of a Korg Nutube Amplifier

Karlwoodward @ www.rs-online.com/designspark is in the process of designing a “guitar pedal” for amplification and distortion using the Korg Nutube we featured earlier. The Part 1 of a series of articles goes through the basic aspects of tubes and valves, the pros and cons on using...

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