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Listening Experiment for Electric Motorcycle Sounds

UoS_Alex

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May 21, 2024
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Hi All,

We at The University of Salford are conducting an experiment which is part of a project all about the design of algorithms that create electric motorcycle sounds, and we could do with some volunteers!

What is the purpose of this study?
The study is part of a project exploring and evaluating the design of algorithms which synthesise alert sounds for electric motorcycles. Traditional internal combustion engine (ICE) motorcycles are commonly loud, with a distinctive sonic character. However, electric vehicles can be significantly quieter. As such, we are investigating the design of synthetic sounds for electric motorcycles for both safety and aesthetic purposes.

Who is running the study?
The study is run by researchers from the University of Salford in the UK, in collaboration with a commercial partner.

What will happen to me if I take part?
You will be asked to complete an online survey using the link provided at the bottom of this post. You will have the right to withdraw at any time or ask for your data to be deleted for any reason.

If you choose to take part online, you will be asked to complete the survey at your convenience. However, we ask that you use headphones to audition the sounds and to take care to make sure that the sound levels are comfortable.

In this phase of the study you will be presented with the sound of an ICE vehicle. This sound may be a recording of a real vehicle or may be a simulation of an ICE.

After listening to each audio sample, you will be presented with a list of 7 scales with opposite words at extremes of the scale (e.g. “fast” and “slow”) and asked to rate the sound on each of the scales. You will be able to listen to each of the sounds as many times as you need.

What are the eligibility criteria?
Participants must be at least 18 years old.

What are the possible disadvantages and risks of taking part?
This study has been reviewed and granted approval by an ethics panel at the University of Salford.

There are no consequences for you if you decide not to take part, or later choose to withdraw your responses. You do not need to give a reason for non-participation or withdrawal.

What are the possible benefits of taking part?
The findings from this study will help us better understand how people respond to different types of engine sounds. This will help us develop acoustic alert sounds for electric motorcycles, which will likely be beneficial for pedestrian safety and to improve the soundscapes of the future.

Will my data be stored securely?
The collected data will be stored only on secure servers provided by the data collection service (Gorilla) and on password-protected university asset computers and University of Salford IT network. We will not collect any identifying characteristics such as name or address and all your responses will be anonymous. Because of this, once you have submitted all of your responses, we will not be able to identify you and withdrawing your data will not be possible.

Anonymised data will be kept as long as considered necessary by the research team to support further analysis and publication; it may also be used in future projects.

What will happen to the study results?

The findings from this study will be used to inform future research and product development related to this topic. The results will be written up in an internal report, will be shared with project stakeholders, and may be published in conference papers or academic journals. Any information made available in this way will be strictly anonymous i.e. we will never publish anything that could identify a response as coming from you personally or show that you have taken part in this study.


If this sounds good to you, a link to join the online experiment is here https://research.sc/participant/login/dynamic/949CEEAA-BAF9-4DF8-B7F8-74FE15146AA6

Thanks!
 
Combine the sound of a Harley V-twin with a warbling tone that varies between 800 and 1500 hz. Because that frequency range is where we can hear directionality the best.
 
My emoto is primarily offroad and the relative quiet is one of the goals/advantages. I used to worry about Teslas sneaking up on me when bicycling, tho believe those now come with sounds you can choose from....
 
Electric Motorcycle, is that an oxymoron?
 
Electric Motorcycle, is that an oxymoron?
Nope, it is a two wheeled cycle, and it has an electric motor. Would you prefer calling them E-motos or E-motorycycles? Do we need to change the others to ICE-motorcycles.
 
Combine the sound of a Harley V-twin with a warbling tone that varies between 800 and 1500 hz. Because that frequency range is where we can hear directionality the best.
But WHY? LOL

For the rider it's not just the sound but the feel, the low freq throbbing of the uneven cadence from a H-D 45 degree V-Twin and it's similarity to a heartbeat.. My Ducati's were similar but the more even firing order just talked to me differently. Same with my H-D V-Rod engine and it's 90 degree design, a beautifully designed engine but it just missed that heartbeat thing.

Nope, it is a two wheeled cycle, and it has an electric motor. Would you prefer calling them E-motos or E-motorycycles? Do we need to change the others to ICE-motorcycles.
Are you talking about a real motorcycle or one of the new electric bicycles?
I could be wrong and time will tell but I don't see E-Motorcycles ever becoming very popular unless
forced thru legislation. Harley started the LiveWire bike back in 2015 but could see the writing on the wall
and discontinued it from the H-D lineup. It was supposed to be renewed as it's own company but AFAIK nothings
come of it yet. Motorcycle enthusiasts are going to be a LOT harder to BS than the average cage driver.
 
Nope, it is a two wheeled cycle, and it has an electric motor. Would you prefer calling them E-motos or E-motorycycles? Do we need to change the others to ICE-motorcycles.
It's about what motorcycles are in the spiritual sense.
 
But WHY? LOL
My thinking is the low frequency V-twin sound is going to carry well, while adding the warbling tone makes it easier to locate spatially. Now honestly my preference is to keep E-motos silent.
For the rider it's not just the sound but the feel, the low freq throbbing of the uneven cadence from a H-D 45 degree V-Twin and it's similarity to a heartbeat.. My Ducati's were similar but the more even firing order just talked to me differently. Same with my H-D V-Rod engine and it's 90 degree design, a beautifully designed engine but it just missed that heartbeat thing.
Yeah, I agree. I just never took a liking to the HD syncopated rhythm. I get it more for the rider feel, but detest when those have loud exhausts forcing it on everyone around them. So for safety reasons an obnoxious sound would get noticed. I prefer the Ducati. What I prefer even more is the sound/feel of a triple or rotary.
Are you talking about a real motorcycle or one of the new electric bicycles?
I could be wrong and time will tell but I don't see E-Motorcycles ever becoming very popular unless
forced thru legislation. Harley started the LiveWire bike back in 2015 but could see the writing on the wall
and discontinued it from the H-D lineup. It was supposed to be renewed as it's own company but AFAIK nothings
come of it yet. Motorcycle enthusiasts are going to be a LOT harder to BS than the average cage driver.
I am referring to motorcycles not E-bikes. HD does still offer the LiveWire bike though maybe it is separate and only offered via HD dealers. Still on the HD website.

Had I not sworn off of street riding due to cell phones I'd probably get an electric motorcycle.
 
It's about what motorcycles are in the spiritual sense.
And what spirit does ICE have over electric? I get it is a different experience. I get that ICE machines are basically a way to hang two wheels on each end of a motor and the motor was key. Another spiritual experience is the fun of riding a bicycle which is silent and smooth. An electric motorcycle comes much closer to providing that with 50 hp legs.
 
To the OP, don't mind our off topic discussion. Happens often here. I'll do your online survey/test.
 
And what spirit does ICE have over electric? I get it is a different experience. I get that ICE machines are basically a way to hang two wheels on each end of a motor and the motor was key. Another spiritual experience is the fun of riding a bicycle which is silent and smooth. An electric motorcycle comes much closer to providing that with 50 hp legs.
Then you take that experience, but I don't want to be forced to choose battery over ICE for any reason whatsoever.
 
Then you take that experience, but I don't want to be forced to choose battery over ICE for any reason whatsoever.
There is no one forcing that choice currently.

I think Kalifornia has mandated only electric lawn equipment. I have to say, boy, I'd take that over my V-Twin John Deere any time if the cost is the same. Cost is the problem with mandates that short circuit markets and freedom of choice. All of my lawn gear other than my mower is electric already by choice. What I really want is one of the robot mowers that are worth having gas or electric. I hate cutting grass.
 
FWIW went to OPs link and got:
Experiment Not Available
The experiment has been disabled by the experiment owner.
Please return to the instructions that the experiment owner has sent you.
 
FWIW went to OPs link and got:
Experiment Not Available
The experiment has been disabled by the experiment owner.
Please return to the instructions that the experiment owner has sent you.
I just saw the same thing.
 
There is no one forcing that choice currently.

I think Kalifornia has mandated only electric lawn equipment. I have to say, boy, I'd take that over my V-Twin John Deere any time if the cost is the same. Cost is the problem with mandates that short circuit markets and freedom of choice. All of my lawn gear other than my mower is electric already by choice. What I really want is one of the robot mowers that are worth having gas or electric. I hate cutting grass.
If only my yard were suitable for an automatic roomba lawn mower. Love to see the neighborhood cats deal with such :) I do prefer electric tools, including lawnmower. We had an electric mower when I was a kid, so much better than dealing with ICE.

ps but when I lived in California we never had a yard to mow.
 
E-bikes are one thing, e-motos another. I have a small light e-moto and it is helluva lot of fun....but aimed at offroad as many are.
Yep, they're really big here in my 55 and over park.
All the geezers are loving them, when they get tired all the do is turn on the motor.
It seemed one year there weren't any, then the next year the snowbird crowd was full of them.

Cost is the problem with mandates that short circuit markets and freedom of choice.
No cost is not the problem, it's a dictatorship government telling me what I have to buy, that's the problem.
All based on BS projections from people set to make fortunes from the legislation.
 
Yep, they're really big here in my 55 and over park.
All the geezers are loving them, when they get tired all the do is turn on the motor.
It seemed one year there weren't any, then the next year the snowbird crowd was full of them.


No cost is not the problem, it's a dictatorship government telling me what I have to buy, that's the problem.
All based on BS projections from people set to make fortunes from the legislation.
Sounds more like e-bikes....mine has no pedals. There is a pedal kit to try and fool the cops, but it is kinda ridiculous as far as propulsion goes. I'm a geezer at 68 I suppose but living in a 55plus community, now that would make me feel old....I still mountain bike as well as use the e-moto on similar trails now.

I'd have to check with my bro, he still lives in California and he has a lawn and pretty sure he has a gas mower :) There are products I don't mind government restrictions on in any case and feeling sorry for the oil business, meh.
 
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