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3-D Optical Illusions

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animist
Posts: 6410
Joined: July 30th, 2010, 11:36 pm

Re: 3-D Optical Illusions

#101 Postby animist » May 17th, 2018, 9:50 pm

Latest post of the previous page:

Alan H wrote:
this was on Facebook, and is an auditory rather than optical illusion. Is it an illusion at all? It seems to be just a case of a computer trying rather badly to mimic some regional accent and coming up with sounds which are not represented in our speech. BTW, the sound sounds to me like "yearly"

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Alan H
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Joined: July 3rd, 2007, 10:26 pm

Re: 3-D Optical Illusions

#102 Postby Alan H » May 17th, 2018, 10:20 pm

animist wrote:
Alan H wrote:
this was on Facebook, and is an auditory rather than optical illusion. Is it an illusion at all? It seems to be just a case of a computer trying rather badly to mimic some regional accent and coming up with sounds which are not represented in our speech. BTW, the sound sounds to me like "yearly"
It's not really anything to do with a computer per se although what you hear depends on the quality of your sound.

Yanny or laurel: The sound dividing the internet
Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

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Tetenterre
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Re: 3-D Optical Illusions

#103 Postby Tetenterre » May 22nd, 2018, 1:17 pm

Alan H wrote:
Assuming these are correct and unaltered apart from the pitch, this is just bewildering:

Ok, so if you pitch-shift it you can hear different things:

down 30%: https://xxv.so/0x6841c258
down 20%: https://xxv.so/0x75b636d0
up 20%: https://xxv.so/0x9d0eb907
up 30% https://xxv.so/0x6d752ac8
up 40% https://xxv.so/0x90b8eeee


Listening to some of these then going back to the original sometimes changes what I hear. Anyone else?
I don't, no.

However, I think the explanation is quite simple: as we age, we lose the top and bottom end of our hearing range, especially the top. I hear "Yanny" when it's taken down 20 and 30% (with bits of "laurel" at 20%), otherwise, I hear "laurel". Presumably the"y" and "n" parts of the sound are at a higher frequency.

Or I could just be making unwarranted assumptions and talking crap. :D
Steve

Quantum Theory: The branch of science with which people who know absolutely sod all about quantum theory can explain anything.

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Alan H
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Re: 3-D Optical Illusions

#104 Postby Alan H » May 22nd, 2018, 1:19 pm

Tetenterre wrote:
Alan H wrote:
Assuming these are correct and unaltered apart from the pitch, this is just bewildering:

Ok, so if you pitch-shift it you can hear different things:

down 30%: https://xxv.so/0x6841c258
down 20%: https://xxv.so/0x75b636d0
up 20%: https://xxv.so/0x9d0eb907
up 30% https://xxv.so/0x6d752ac8
up 40% https://xxv.so/0x90b8eeee


Listening to some of these then going back to the original sometimes changes what I hear. Anyone else?
I don't, no.

However, I think the explanation is quite simple: as we age, we lose the top and bottom end of our hearing range, especially the top. I hear "Yanny" when it's taken down 20 and 30% (with bits of "laurel" at 20%), otherwise, I hear "laurel". Presumably the"y" and "n" parts of the sound are at a higher frequency.

Or I could just be making unwarranted assumptions and talking crap. :D
I think that frequency response is part of it, but that can't be it all: I can hear both at different time and with different pre-conditioning.
Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

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Tetenterre
Posts: 3232
Joined: March 13th, 2011, 11:36 am

Re: 3-D Optical Illusions

#105 Postby Tetenterre » May 23rd, 2018, 11:13 am

Alan H wrote:I think that frequency response is part of it, but that can't be it all: I can hear both at different time and with different pre-conditioning.
<sheldon_cooper>
Interesting...
</sheldon_cooper>
Steve

Quantum Theory: The branch of science with which people who know absolutely sod all about quantum theory can explain anything.

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Alan H
Posts: 23273
Joined: July 3rd, 2007, 10:26 pm

Re: 3-D Optical Illusions

#106 Postby Alan H » May 25th, 2018, 11:39 pm

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?


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