[Q] Disable annoying sound when changing volume level & turning on

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I have a stock ROM.

When changing volume level with the button on the right-side of the phone, it always makes a sound (probably to demonstrate a new volume level). Also, when I turn it on, the phone produces annoying sound as well.

Is there a way to turn both these sounds off?
Thanks in advance!

I was bored one day last week. And as a musician knowing the tones are do-ray-me.. if your fast enough could always do the song from Sound of Music and woo a fancy girl.

Just a thought.

Sent from my HTC One X using xda premium