If you are a purist, skip the hacks. Learn the real spray patterns, train your aim on aim_map, and respect the game that defined a generation. If you just want to tinker with sound exploits for fun, do it on a private LAN using an old laptop disconnected from the internet.
While it may fool casual spectators, modern server-side anti-cheats (and many VAC-enabled servers) can still detect the irregular packet data sent by such scripts, leading to a permanent ban. Risks of "Free" CS 1.6 Hacks
No. Do not do it.