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Two microphones set up to record a piano simultaneously, which creates a stereo sound
Two microphones set up to record a piano simultaneously, which creates a stereo sound
Diagram of Clément Ader's théatrophone prototype at the Opera during the World Exhibition in Paris (1881)
Diagram of Clément Ader's théatrophone prototype at the Opera during the World Exhibition in Paris (1881)
Bell Labs binaural demonstration at World's Fair
Bell Labs binaural demonstration at World's Fair
Domestic stereo system, having two speakers
Domestic stereo system, having two speakers
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Headphones on a stand
Headphones on a stand
Brandes radio headphones, circa 1920
Brandes radio headphones, circa 1920
Sennheiser HD 555 headphones, used in audio production environments (2007)
Sennheiser HD 555 headphones, used in audio production environments (2007)
Headphone cord with integrated potentiometer for volume control
Headphone cord with integrated potentiometer for volume control