The only case in which I have ever heard Cortana speak my name is if I ask her what my name is. AFAIK she never speaks it otherwise. I'm guessing that they want Cortana to be able to pronounce your name in case they do decide to have Cortana speak your name more often, rather than trying to make everyone teach their name after she needs to.
I actually found out the problem. I have English (GB) installed on my phone, and I accidentally switched the keyboards to English (US) by swiping sideways on the spacebar. I don't have the English (US) speech installed - so it wasn't offering speech recognition. Switching back to to English (GB) fixed the problem.
A feature called International assist is responsible for adding prefixes to your dialed numbers. Turn off the International assist in your phone.
Turning off International Assist in Windows 10 Mobile :
Go to Settings->System->Phone.
Turn off International Assist located under Dialling option.
Turning off International Assist in Windows Phone 8.1 :
You can mute all app sounds, that should also cover the speech recognition sounds. Do the following:
Press either of the volume keys
Tap the chevron to expand the volume bar
Drag the "Media + Apps" slider to zero, or alternatively tap the icon in front of it
That should do it.
I am also not able to turn off the 'sound' of speech search. But you can do one thing to avoid accidental launch of 'Speech search'. Go to settings->speech and unchecked 'Allow speech above lock' this will not launch speech search when phone is locked.
Also keeping your phone on 'vibrate' mode will stop this sound.
Pressing and holding the Windows/Start key, and it will start up the voice commands, which can do things like "Call Chris mobile" or "Find coffee in London" or "Open calendar" or "Text Amy" or even "Note send birthday card".
Some other apps, such as messaging and email, also have a microphone icon in the application bar for dictation.
You can speek to text by going into the messaging app, prepare to start a message, and tapping the microphone on the application bar at the bottom of the screen. It will then allow you to dictate text in.
The same icon is also used in the default email app.
I had this problem with my Lumia 650 but eventually fixed it as follows:
Speech, Inking & Typing
Getting to know you
Click on getting to know me and the dictation icon reappears - hooray!
In the settings > keyboard section, there is a button "More keyboard settings".
In that section, make sure that "Show dictation button" is checked.
By Default, it is unchecked.
What language are you using? I am using German and I have no option for dictation.
Wow this has been driving me crazy the missing microphone icon. Somehow the English (United Kingdom) was added and English (US) was second on the list. I removed the English(UK) and now it works. Thanks
In my case, I accidentally switched the keyboards from English (US) to English (GB) by swiping sideways on the spacebar. Switching back to English (US) fixed the problem in my region. Now I have the speech-to-text option back again!
The feature for reading items on the screen on demand is called Narrator, and is an accessibility setting; you should be able to find it in the relevant section of the settings hub (sorry, I no longer have any WP8.1 devices to tell you the exact steps). You probably don't want it on all the time - it's designed for blind people, so it reads stuff like what ...
You said that you're asking Cortana to switch off the Wi-Fi. Instead of speaking to Cortana to turn off the Wi-Fi, you try to type "Turn off Wi-Fi" to the Cortana to turn off the Wi-Fi. Check and see if it works with typing, then you try again with speaking to the Cortana.