sine wave: how to set amplitude?

Regarding the multiplier(mult) block, there are few types of mult block which are LPM_mult and fp_mult(floating point).

Is LPM_mult a fixed point mult?

should i use floating point or fixed point for my case(aim for accuracy) in audio testing application?

i am confused because there are different opinion in this issue.

someone stated that in audio application, should use fixed point while

in general article, for accuracy, use floating point..

In my opinion, i should use floating point. What do u think?

Since one of the input is 24bit of mult block, is there any disadvantage of using 18 x 18 mult block? will it cascade by itself? losing accuracy or speed?

In verilog, if use multiplication(*), will it use the embedded mult block? How can I control to choose whether i want to use embedded mult block?

Thanks