Thread: How to make electric vehicles audible?

Fit a Jericho trumpet (aka Stuka Dive bomber) - that should awaken any unsuspecting pedestrian

Why not fit them with muddies,they are bloody noisey at all speeds

Can't find a source to confirm... but I recall hearing that some noise is directional, whilst other noise is not.
Sirens and jet engines usually leave us looking around for the source of the noise, however certain sounds, bubbling water from a stream for example, has a sound signature which allows it to be fairly accurately pinpointed by humans (another win for evolution).
I recall hearing there was development of injecting these directional sounds into the sirens of emergency vehicles to allow the source to be traced more easily. Would be a perfect application with EV's, say for example loud volume, but unobtrusive pink noise (which IIRC mimics natural sounds).

...either that or Cannibal Corpse 'hammer smashed face' playing at 125dB ALL THE DARN TIME!!!
Leave you opinions in the Heavy Metal appreciation Thread

Ive since removed the sound module, I like minimalist and found myself adding un-nescessary junk.

Originally Posted by Toxic_Avenger

Can't find a source to confirm... but I recall hearing that some noise is directional, whilst other noise is not.
Sirens and jet engines usually leave us looking around for the source of the noise, however certain sounds, bubbling water from a stream for example, has a sound signature which allows it to be fairly accurately pinpointed by humans (another win for evolution).
I recall hearing there was development of injecting these directional sounds into the sirens of emergency vehicles to allow the source to be traced more easily. Would be a perfect application with EV's, say for example loud volume, but unobtrusive pink noise (which IIRC mimics natural sounds).

...either that or Cannibal Corpse 'hammer smashed face' playing at 125dB ALL THE DARN TIME!!!
Leave you opinions in the Heavy Metal appreciation Thread

Yep, this is one of the reasons the old ‘beepers’ on machinery and reverse alarms are being replaced with the ‘White noise’ or ‘hash’ beepers as the direction of these can be ascertained whereas the beeping ones cannot be so much. Many larger projects and construction companies won’t accept beeper style units on machinery any more.

Originally Posted by goingbush

Ive since removed the sound module,

Hi,
You weren't tempted to use a V12 Ferrari sound??

Some where I saw a clip of an EV using an R2D2 sound clip that had a very appropriate voice for the carpark situation.

Cheers

Edit, similar to http://www.galaxyfaraway.com/Sounds/R2D2c.wav


Edit, found it, it wasn't an EV, it is the polite horn in this YouTube clip.
YouTube

Originally Posted by Homestar

Yep, this is one of the reasons the old ‘beepers’ on machinery and reverse alarms are being replaced with the ‘White noise’ or ‘hash’ beepers as the direction of these can be ascertained whereas the beeping ones cannot be so much. Many larger projects and construction companies won’t accept beeper style units on machinery any more.

So I was down at the Caloundra Waste Recovery Centre today getting a free trailer load of coarse mulch for the garden and the big tractor loader had the most annoying reversing beeper I have ever heard. I can't describe it, but if it went on for more than about five minutes I might stab my eyes with my keys just to distract me from hearing it. Fortunately it didn't.
If they put that on an electric bus no-one would ever fail to know the bus was coming.

Suggested sound effect to suit an electric vehicle is to make it sound like an Internal Combustion Engine.

Job done.