The noise from motorcycles is projected behind the bike, so it's not terribly effective at alerting unaware people to their presences. And, as most people who'

The noise from motorcycles is projected behind the bike, so it's not terribly effective at alerting unaware people to their presences. And, as most people who've tried to determine the direction an ambulance is approaching from will tell you: it's really hard to locate objects based on sound emissions alone from within a car cabin because of the acoustics of a cabin end up reflecting the audio all around the driver. If you want to stand out on a motorcycle, use your lights and wear bright, reflective clothing. Even then, you have to accept that you'll never have the presence of an automobile, so drive accordingly.