Disable ALL sound in Google Voice search

[Android Central Question]

When I use Google Voice Search Widget my phone makes a "BLOINK" sound after tapping widget and after I speak it makes a higher pitched "PLINK' sound that drive me crazy. I havent found a way to turn them off without turning sound off for the entire phone. All Ive found online is how to turn off "OK Google" voice but not these annoying tones....?????

Thanks for your help.