While on the home screen, touch the menu button to open the menu. Choose "settings." Then choose "Sound and Display." This is where you change your notification sounds.
you need a rooted phone and a custom rom
Menu sounds notifications
Your Galaxy tablet is probably whistling when you get a new notification. You can change the notification sounds to no sound in your settings.
How to change notification on ur Samsung
Click the square, then the tool key (top right), then turn notification sounds 'on'
r2b1
go to setting, sound, hit change with buttons
From the iPhone home screen tap Settings. Then go tap on Notification Center. Scroll down and tap WhatsApp. You can turn the sounds on or off.
You might need to check your settings and see if you may have turned off notification sounds. There's also the possibility that an app is disabling your notification sound.
There is no possible way
There is not a way to change the ringtone volume for a specific person in a HTC Droid Eris but you can change the ringtone to a tone that is not loud for that person.
To me, as I was drifting off to sleep one night, it sounds like George Clooney.