I have turned off all sounds on the Sound settings and use vibrate for my phone because I don't want it ever to make any sounds inadvertently since I am often in a public setting.
However, I cannot seem to find a way to turn off the sounds that happen when you accidentally press the search button for a second. This causes two tones as the speech recognition begins, and a few more tones later a few seconds later when it stops or if you manually turn it off.
It happens to me more often than I'd like, because simply putting the phone down on your lap, or leaving it on in your pocket might initiate it if slight pressure is put on the search button.
For the life of me, I can't find a way to turn the speech recognition sounds off. Is there a way, and if so, what would that be?
For reference, I'm using a Lumia 920 with Windows Phone 8.1.