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In the stock clock app (4.2 stock Android), there's a timer function; the one where e.g. you type in 8 minutes and an alarm goes off in eight minutes. However, the noise it makes is absolutely unbearable. It's like a smoke alarm. There doesn't seem to be an option to select a different sound. I'd rather not use a different clock app; I like the stock one. I just want to change the horrible noise. Any tips?

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You could check out third party timers to see if they offer that feature. – Ben Apr 12 '13 at 15:35
Great way to end a meditation... I feel like I just got shocked with a defibrillator. – user81066 Nov 21 '14 at 9:24

I've got the same problem and the annoying sound can not be found in /System/media/audio/, but in /system/app/DeskClock.apk/assets/sounds/Timer_Expire.ogg. In any case, it seems difficult or impossible to change.

There is more info here:

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There are just 2 ways to fix this:

  • either to fix an .apk for this app (change a path in source of that app to point to different sound file and build it from source. Or maybe you will be able to patch your apk using something like android-apktool)
  • or to fix something else (not an app):

Mount /system as rw (either using adb or RootExplorer or other program). Go to folder /System/media/audio/. It usualy contains folders alarms, notifications, ringtones and ui. Then you can find and replace that annoying sound with another .ogg file for your taste.

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