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Matt Crowley

Amazon Tap: Go hands-free but say goodbye to battery life

Matt Crowley
Victor Lorenzo
Victor Lorenzo
4/17/2017 3:47:48 AM
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VM1010
I read about your VM1010 last year when it was not commercially available yet.

Have you incorporated new technologies into the MEMS device? At that time this device was more a sound-activated than a voice-activated device, as it could be deduced from the block diagram you published then.



IMHO, this threshold based operation is perfect for detecting events like the user tapping over the device, but will not be capable of differentiating a loud noise from a user calling "Alexa", "Thomas" or "Pizza".

I see something that could improve it and will probably become a great innovation (oups, patent trolls don't read this ;D), incorporate the ability to detect vowel formants by using some sort of SAW filtering. Most vowels can be discriminated using two formants, F1 and F2, and more precise results can be obtained using more formants. You will increase quiescent current comsumption during standby by a factor of 3, maybe more, but false positive triggers will be dramatically reduced.

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There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.
Infineon MOSFETs have been embedded into PC boards by Schweizer Electronic AG
You now need to adjust component values to achieve some system goal, such as predefined frequency response or time behaviour, and there’s no closed method for working out those values.
As a member of the electronics design community, I am angry and disappointed with the recent deaths of 346 people due to the Boeing MAX 8 design
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