Google Search (3.5.14)

[techbeck]

In a new update to Google Search (3.5.14), users will now be able to activate the ?OK Google? hotword detection from anywhere within the OS (even the lockscreen) or even while the screen is off, providing your phone is charging.

 

Not enabled by default, we gave you the spiel earlier today. You?ll first need to jump into your Google Settings and select Google Settings > Search & Now > Voice > ?Ok Google? Detection and check ?From any screen? to enable Hotword Detection from any app (even the lockscreen). If you don?t see it immediately, don?t fret. It appears this is a new feature rolling out on a per-account basis, done on the server side of things.

 

More including APK download links tho it doesnt work for some.

http://phandroid.com/2014/06/26/download-google-search-3-5-14-with-ok-google-with-system-wide-hotword-detection/