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Author Topic: Silent gif audio illusion  (Read 5569 times)

sevenlayermuddle

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Silent gif audio illusion
« on: December 05, 2017, 05:28:45 PM »

Apparently, many people hear a sound from this gif, yet no sound exists.

I like to think I can experience most illusions, but I do not ‘hear’ anything unexpected.   Absolutely zero, on iPad, PC, and even on TV. ???

Anybody else?

http://www.bbc.co.uk/news/science-environment-42237092
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Dray

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Re: Silent gif audio illusion
« Reply #1 on: December 05, 2017, 06:24:41 PM »

Quote
By playing this video you agree to Twitter's use of cookies
This use may include analytics, personalization, and ads.
No thanks
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burakkucat

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Re: Silent gif audio illusion
« Reply #2 on: December 05, 2017, 10:18:31 PM »

I was unable to find the link to the GIF file. <Puzzled>  ???
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Dray

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Re: Silent gif audio illusion
« Reply #3 on: December 05, 2017, 10:23:56 PM »

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burakkucat

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Re: Silent gif audio illusion
« Reply #4 on: December 05, 2017, 10:31:43 PM »

http://i.imgur.com/ga7w2z3.gif

Thank you.  :)

Having now watched the GIF file, absolutely nothing was "heard".  :no:
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Dray

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Re: Silent gif audio illusion
« Reply #5 on: December 05, 2017, 10:34:12 PM »

Did you have the volume turned up?
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burakkucat

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Re: Silent gif audio illusion
« Reply #6 on: December 05, 2017, 10:35:48 PM »

Only at my normal level for normal listening.
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Dray

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Re: Silent gif audio illusion
« Reply #7 on: December 05, 2017, 10:38:50 PM »

I tried turning up the volume on my echo, the range is 0-10. It does indeed go up to 11.
« Last Edit: December 05, 2017, 10:42:21 PM by Dray »
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burakkucat

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Re: Silent gif audio illusion
« Reply #8 on: December 05, 2017, 10:42:01 PM »

Retried, with volume at 100% and . . . nothing.
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sevenlayermuddle

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Re: Silent gif audio illusion
« Reply #9 on: December 05, 2017, 11:07:57 PM »

Better half has also failed to hear the effect.   I must say, becoming sceptical of the assertion that 70% of people hear a thudding sound.    ???

Did you have the volume turned up?

 :lol:

Probably shouldn’t admit it, but when trying it on the iPad, I failed to resist the natural temptation to hold the speakers up to my ear.    :blush:
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Ronski

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Re: Silent gif audio illusion
« Reply #10 on: December 06, 2017, 06:10:09 AM »

Nothing hear either (spelling/pun intended)
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kitz

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Re: Silent gif audio illusion
« Reply #11 on: December 06, 2017, 10:48:35 AM »

I can't hear anything either.   Although I can understand why some people would expect to hear a thud. 
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roseway

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Re: Silent gif audio illusion
« Reply #12 on: December 06, 2017, 11:17:07 AM »

Like everyone else here, I can't hear anything, and I'm suspicious about the poll which claimed that 70% of those who responded believed they heard a thudding sound. That just isn't believable, unless the poll was biased in some way.
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sevenlayermuddle

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Re: Silent gif audio illusion
« Reply #13 on: December 06, 2017, 11:40:35 AM »

Accordingly to the Beeb, it’s been kicking around since 2008.   I wonder if, just possibly, there might have been a bug in certain contemporary gif renderers of that vintage that allowed video signals, in some obscure circumstances, to bleed through into audio channels?

I do remember, days of analogue TVs built with valve technology, it was quite hard to prevent some video, usually scene-dependent, from causing audio interference.  But I don’t remember seeing many animated gifs in those days. :D
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Lil-Koby

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Re: Silent gif audio illusion
« Reply #14 on: December 06, 2017, 10:03:23 PM »

Hehe, this a good one... i can hear the sound ;D :o
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