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Day in the Life, A (Beatles) - Ultrasonic Dog Whistle
At the run out groove; a dog whistle was put in by John Lennon. the point was that if you didn't have an auto-return on the record player it would play repeatedly making your dog howl. it happens right after the weird noise a the end of the song. ultrasonic dog whistle can only be heard by dogs.
Special Requirements:
Beatles 45 or 33 1/3 record and a dog
Avg. Rating:    6.8 of 10 - (73 votes cast)
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Contributed By:
Don't Eat Crayons on 12-06-2002
Reviewed By:
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Comments:
cvan writes:
Most turntables and / or speakers are unable to reproduce frequencies above 20k Hz which is the threshold of human hearing (considering you are a new born without any hearing trauma)... thus this does not make sense. The "whistle" would have to produce sound above the 20k Hz range to be heard only by dogs or others animals.
8 of 10 people found this comment helpful. Did you? Yes
C-Miller writes:
It was put there by John Lennon, not Paul McCartney. And if only dogs can hear it, why can myself and everyone I know hear it?
7 of 10 people found this comment helpful. Did you? Yes
ADD writes:
C-Miller, you can hear a faint ringing similar to that of a TV turning on, but you can't hear the actual pitch dogs hear, which is rediculously annoying and loud.
4 of 6 people found this comment helpful. Did you? Yes
D.Rug writes:
cvan, it is true that humans can hear frequencies up to 20kHz, and that dogs can detect sounds well above our capacity (as high as 45kHz). But "silent" dog whistles don't even exceed 13kHz, which should be well within our audible range. The reason for this lies in sound pressure. Any sound above 10kHz must basically be "blasted" at a high decibel(dB) level for humans to hear, but a dog can hear the sound at even a low dB level. Therefore, a dog whistle, at 13kHz and 80dB may not be audible to a human, but will probably annoy the crap out of your dog. I haven't experimented with the record (or a dog) or anything, but Sir George Martin was (and still is) a musical genious. Inputting sounds such as these would have been no problem for him, even in the sixties with analog technology.
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MonopMaster23 writes:
The sound Paul put there was for his dog, Martha and all the dogs of London. (Paul wrote "Martha My Dear" for his dog.)
5 of 9 people found this comment helpful. Did you? Yes


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