Sir Paul McCartney has confirmed that when The Beatles recorded the ‘Sgt Pepper’ album in 1967 they placed a sound in the recording that only dogs can hear.

In an interview with the BBC’s Zane Rowe McCartney was talking about the sound of vinyl and confirmed the much rumoured dog theory. “I think vinyl is the best. It just sounds good,” he said. “I asked my engineers why it sounds good and they explained that there are frequencies above and below that you can’t hear. We got into a rap with George Martin a long time ago. We’d talk for hours about these frequencies below the sub that you couldn’t really hear and the high frequencies that only dogs could hear. We put a sound on ‘Sgt Pepper’ that only dogs could hear. If you ever play ‘Sgt Pepper’ watch your dog”.

The Beatles recorded a dog whistle and placed it into ‘A Day In The Life’. The high frequency 15 kilohertz tone cannot be detected by the human ear but will have your pooch singing to its own Beatles sound.

Sir Paul’s next shows will be in Japan this month.

Dates are:

November 11 and 12, Osaka, Kyocera Dome
November 15, Fukuoka, Yafouku Dome
November 18, 19, 21, Tokyo, Tokyo Dome

Watch the Paul McCartney interview here:

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