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• 10:37, 13 April 2022 Physdemo talk contribs created page Interference--Stereo Speakers (Created page with "{{NewDemo|subject=OWS|topic=Waves|file1=Interference-Stereo Speaker.gif}} A common signal is sent to two speakers. One speaker is hooked through switch that changes the phase of one speaker by 180 degrees. At low frequencies, 50hz, students are asked in which position does the signal sound louder. Alternative: When two speakers wired out of phase are placed facing each other you will get substantial cancellation of sounds where the wavelengths are greater than the 3-4c...")