A disadvantage of additive synthesis is...
- Additive synthesis can be expensive for the human to design.
Some very complex forms, sure, but not all additive synthesis is complex. - Additive synthesis can be expensive for the computer to calculate.
Yes. - Additive synthesis can be cheap for the computer to calculate.
This doesn't make sense. Cheap would be an advantage. - Additive synthesis can be expensive for the human to execute.
Interface design is irrelevant to this unit.