diff --git a/Sounds/crash.wav b/Sounds/crash.wav index 6f9e94cbd..ebdb0c263 100644 Binary files a/Sounds/crash.wav and b/Sounds/crash.wav differ diff --git a/Sounds/helicopter-skid.wav b/Sounds/helicopter-skid.wav index 9922bd3fc..ff1c0865c 100644 Binary files a/Sounds/helicopter-skid.wav and b/Sounds/helicopter-skid.wav differ diff --git a/Sounds/helicopter.wav b/Sounds/helicopter.wav index 8bd7c0f87..f3ca30958 100644 Binary files a/Sounds/helicopter.wav and b/Sounds/helicopter.wav differ diff --git a/Sounds/overspeed.wav b/Sounds/overspeed.wav index c79b27079..95cb70ebd 100644 Binary files a/Sounds/overspeed.wav and b/Sounds/overspeed.wav differ