You can enable and disable to speak Caller/Sender Name. This app also read the sender SMS content. You can change the speech rate and language and much more in settings given in this app.
Now Caller Name Speaker allow you to set the Ring Volume and Speech Volume in this app given in Sound Settings.
1.Caller Name Speaker ON/OFF.
2.SMS Sender Speaker ON/OFF.
3.Speech Rate Control.
4.Language Change Option.
5.Ring Volume Control.
6.Speech Volume Control.
Note: Its a free app supported by Ads.