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[Doctorbass]

I have oedered my EVSM-2 from soundracer. Kenneth the founder has been working on some improovement wich include the possibility to program over 30 different parameters and alsi to be able to program and switch on the fly the desired sound stored on a micro SD card.


http://eveess.com/



I should receive it before there is snow here so i might be able to install and test it  before next spring

Doc

[mentalvmaxrider]

hahahaha....sound module on ev bikes...funny but neat...you could make it sound like any bike you want. I just bungy cord my Bluetooth speaker to the handlebars and crank ride of the Valkyries when I'm in traffic....this antic definitely generates some funny looks from the commuters

[GdB]

I have oedered my EVSM-2 from soundracer. Kenneth the founder has been working on some improovement wich include the possibility to program over 30 different parameters and alsi to be able to program and switch on the fly the desired sound stored on a micro SD card.

I should receive it before there is snow here so i might be able to install and test it  before next spring

Doc, have you made any progress installing it?  The tricky part is the "Vehicle speed or RPM input  0‐5V analog signal. 0‐x Hz frequency signal".

I would love to get the Zero wiring diagram but my dealer and Zero don't/can't give more than the 12V aux connector location.

I was thinking of using a PWM modulated high powered compact horn, but my time to develop it is limited.  I would use a relay triggered by the high beam power, but powered by the aux circuit to control it.

Looking at other off the shelf options and other efforts I found some interesting things:

http://ectunes.com/a/wp-mc

http://ectunes.com/p/products/motorcycles-scooters

http://ectunes.com/f/pdf/ps-mc_scooter.pdf

http://ectunes.com/p/buy/electric-hybrid-cars

http://electricmotorcycleforum.com/boards/index.php?topic=2665.0

http://www.soundracer.se/?p=98

http://www.diyelectriccar.com/forums/showthread.php?s=2f97098a4d2ff4540af9d688ab266ec9&t=84288

The ectunes was actually tested on a Zero S, but I'm not sure if they a product to sell.  I emailed them to find out.

[drumgadget]

Confess to being a little puzzled by this quest for the perfect sound module .....

I am a newcomer to ebikes, but one of the things I dig the most is the near silence, especially when riding at night.  And I've got a bunch of noisy ICE hotrods.  I do understand the concern from a safety standpoint (oblivious pedestrians), but the same applies to my single-speed bicycles ..... I try to expect the unexpected.

Some time ago I was approached by the developer of an electric "hotrod dragster" project - he wanted a convincing ICE sound to accompany the fury of the electrically driven smokin' tires (I was a retired audio engineer with a long career in film FX).  I tried to convince him that the kind of SPL he was envisioning would take a hell of a lot of ELECTRICAL power away from the primary go-fast goal ..... not to mention the weight and bulk of the reinforcement system.  And you'd still be in danger of the "flea farting in a hurricane" situation, or maybe the playing card flapping against your spokes on your kiddee bike ....... ie ...... pathetic!

Mike

[Burton]

I would love to get the Zero wiring diagram but my dealer and Zero don't/can't give more than the 12V aux connector location.

Welcome to the forms GdB, please find the link in my signature and click on it ... you will find a wire diagram close to your 2014 bike.

[mguw]

Hi
These sound generators would need automatic gear shifting to show a nice pitch.   An electro motor is spinning 0rpm to 8000 were ice need 5 gears to cope with.

A+ Marcel

[nigezero]

I got one of the Sound racers a couple of years ago to use on my 2010.

Good:
Pretty straight forward little device and they supported my really well.

Bad
I had to get an amp and a speaker and found it hard to find a location to fit it all, power it, make it safe and robust.

The SR needed a speed sensor off the front wheel which was fiddly to say the least. I fabricated a bracket and a magnet holder in the spokes but crashed the bike before i got to try it.

Ultimately, I was only doing this to appease my wife who was convinced sound was the key to survival which I completely disagree with. I love not listening to noise and relearning that speed and power aren't relative to noise but it's taking a long time. My favourite sound in the world is the Guzzi V8 followed closely by any racing MV Agusta but that's change for you.

[GdB]

I believe loud sound is sometimes very useful for safety, but mostly a nuisance.  My plan was to connect the sound racer to a relay triggered by the high beams.  Another switch could also be added to turn it off.

Burton, thanks for the link to wiring diagrams!

[Nomad]

What do you guys think of the following concept..
Zero bikes already make a great sounding "whine". Perhaps what we need is not sound "generation", but sound amplification.
I thought of stripping down a 12V PA system such as this one
http://www.amazon.com/speaker-Vehicle-Speaker-Emergency-Amplifier/dp/B017IPQGNY/
The mic would be permanently mounted near the motor and the "push to talk" button would be wired as an On/Off switch on the handlebar.

Issues that may arise:
1. Sound through the system may be very different than what the motor generated and might be unpleasant.
I dont think this will be the case, as these systems are quite good at amplifying high frequencies.
2. The speaker itself is not very compact. Removing the horn part will significantly reduce size, but I have no idea how this would affect sound quality/Volume.