but you can use envelopes, eq, time stretch......
a plethora of editing techniques to change that sound
and if you can make a siren in a soft synth that sounds
better than that one
i will eat my hat.............. and any hat i just happen to
see when im walking down the street, i will eat aswell.
MIDI = Musical Instrument Digital Interface
its standadrd language musical instruments, sequencers
etc.... use to comunicate with each other.
If you cant do it on the soft synths interface a midi
controller wont help you as it only edits and controls
parameters of that synths.