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Apple Watch handwashing detection was years in development; may be more to come - 9to5Mac

Posted: 29 Jun 2020 07:05 AM PDT

One of the more timely WWDC announcements was Apple Watch handwashing detection. The coronavirus crisis means everyone is being encouraged to wash their hands more frequently, and to ensure that we're doing so thoroughly.

But the handwashing detection feature wasn't developed hastily in response, says Apple, but was rather years in development …

WHO and CDC guidelines recommend handwashing for at least 20 seconds, and watchOS 7 aims to automatically detect when you're washing your hands, and to start a 20-second countdown timer with a cute animation. If it detects that you have stopped washing your hands before the time is up, it politely prompts you to keep going.

Washing hands properly for at least 20 seconds can help prevent the spread of illness. In a first-of-its-kind innovation for a wearable, Apple Watch uses the motion sensors, microphone, and on-device machine learning to automatically detect handwashing motions and sounds. It then initiates a 20-second countdown timer, and if the user finishes early, they will be prompted to keep washing. Apple Watch can also conveniently remind the user to wash their hands when they return home.

The Health app on iPhone will show frequency and duration of the user's handwashing, as well as information on the importance of handwashing, as it relates to overall health. Sounds used to detect handwashing are not automatically recorded or saved by the Health app or Apple Watch.

Once automatically detected, handwashing will begin a 20-second timer.

A TechCrunch report says that it took literally years of work.

Handwashing for the Apple Watch happily slotted alongside face masks for Memojis in the list of COVID-19-related features the company introduced at last week's WWDC keynote […]

Unlike other rush initiatives undertaken by the company once the virus hit, however, the forthcoming Apple Watch handwashing app wasn't built overnight. The feature was the result of 'years of work,' VP of technology Kevin Lynch told TechCrunch. In typical Apple fashion, the product was a result of years of trial and error, according to the executive.

The Apple Watch handwashing feature relies on three cues.

The accelerometer is the key piece of hardware here, waiting for the specific handwashing pattern — which apparently adopts a number of different methods, depending on who's actually doing the scrubbing.

Along with motion, the app listens for the sound of running water. Even that's not enough, though — after all, eco sinks have become increasingly popular, meaning that there's often less water sound to be listening for.

The sound of squishing soap takes care of that last bit. It's got a unique enough audio signature so as to confirm that handwashing is taking place.

All the same, early usage doesn't seem to reflect years of work: 9to5Mac testing has found detection to be rather unreliable. An alternative is to have your Watch prompt you to wash your hands hourly.

Could the Apple Watch go further, and help diagnose COVID-19? Apple says it is not doing any of its own research in this area, but is supporting those who are.

On the Watch front specifically, it has opened remote usage for doctors looking to monitor patients' ECG readings without risking exposure to the virus for either party. Apple currently makes no claims about the Watch's potential for helping to diagnose the virus, however. 'While we haven't studied specifically how Apple Watch can track COVID, we're happy to support the research the medical community is doing. We really support their initiatives by enabling our colleagues in the space, and we're excited to see what they learn,' Apple's VP of Health, Sumbul Ahmad Desai, tells TechCrunch.

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Microsoft’s new Windows File Recovery tool lets you retrieve deleted documents - The Verge

Posted: 29 Jun 2020 04:25 AM PDT

Microsoft is releasing its own Windows File Recovery tool, designed to retrieve files you've mistakenly deleted. Windows File Recovery is a command line app that will recover a variety of files and documents from local hard drives, USB drives, and even SD cards from cameras. Recovery of files on cloud storage or network file shares is not supported, though.

Like any file recovery tool, you'll need to use it as soon as possible on deleted files to ensure they haven't been overwritten. You'll be able to use Microsoft's new tool to recover MP3 files, MP4 videos, PDF documents, JPEG images, and typical Word, Excel, and PowerPoint documents.

Microsoft's file recovery tool has a default mode that's designed primarily for NTFS file systems. It will recover files from a corrupted disk or after you've formatted a disk. A second signature mode will likely be the more popular option, allowing users to recover specific file types across FAT, exFAT, and ReFS file systems. This signature mode may also take longer to retrieve files.

Windows File Recovery will be a useful tool for anyone who has accidentally deleted an important document, or wiped a drive clean by mistake. Microsoft already provides a Previous Versions feature in Windows 10 that lets you recovery documents you may have deleted, but you have to specifically enable this using a File History feature that's disabled by default.

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