April 2015 Update

AMP Audio
2 min readApr 29, 2015

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The SoundFocus team is excited to update you on our progress with building AMP. This month we’ve been focused on verifying all the pieces of AMP for mass production. This has included coordinating board fabrication and testing the mechanical design. Below is a test build of AMP for iPhone 6.

AMP Engineering Test Unit on iPhone 6

This test build allows us to evaluate the mechanical enclosure end to end. We’ve been refining material thicknesses, acoustic performance of the enclosure, the look and feel of AMP’s buttons, electrical performance, and the manufacturing assembly process. We have also improved the layout of the lower flex PCB (see development mockup below). This revised design incorporates our new microphone placement and ensures consistent AMP performance and reliability after manufacturing.

AMP bottom flex PCB mockup

Not only is the hardware making great progress, but we’ve also been hard at work with firmware (the software that runs inside of AMP). This month, we integrated several of our firmware sub-systems to enable seamless integration with the iPhone. Below is a photo of one of our engineers and an AMP development board (The U shaped object next to the laptop).

Govinda with AMP development board

We would also like to welcome a new member of the SoundFocus team. Guillermo Garcia is a DSP engineer who will be refining our tuning algorithms and audio processing software. He comes to us with 25 years of experience from companies such as Gibson Guitar, Creative Labs, SGI, and Bias. He holds a PhD from Stanford where he studied at the Center for Computer Research in Music and Acoustics. He’s also an accomplished Tango guitarist with 4 recorded albums. Welcome Guillermo!

Guillermo Garcia, PhD

We’re making great progress every week, so please look out for our next update in May. Thanks again for being a great supporter of AMP.

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