I am considering the miniature speakers of CUI Devices for a project. The ambient noise may be as loud as 60 dB to 80 dB (the speaker could for isntance be placed close to a highway), but could just as well be as quite as an empty room with closed doors and windows.
Just to repeat my question, I am wondering how loud sounds the speaker must be able to produce for it to be audible. By that I do not mean that I would like it to be barely audible, or just as audible so that I can just tell that it is there. I would like to be able to hear what is said if the speaker is outputting voice for instance. Preferably as well as when a person standing in front of me speaks to me.
Excuse me in advance if I should have used dBA and not dB.