Difference between revisions of "Sound beating (speakers)"

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(Created page with "__NOTOC__ Back to 3C - Acoustics<br> PIRA index: 3C55.35 ==Description== Two speakers, each attached to their own signal generator, are placed in front of...")
 
 
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==Description==
 
==Description==
Two speakers, each attached to their own signal generator, are placed in front of a microphone. The signal from one generator is slightly raised or lowered to hear the beating between the two sound sources.
+
Two speakers, each attached to their own signal generator and connected to an oscilloscope demonstrate beating if their frequencies are slightly different.
 
 
  
 
==Equipment==
 
==Equipment==
 
*two frequency generators
 
*two frequency generators
 
*two speakers
 
*two speakers
*microphone
 
 
*oscilloscope
 
*oscilloscope
 +
*two multimeters
 
*various cables
 
*various cables
  
 
==Instructions==
 
==Instructions==
Attach each speaker to its respective function generator and place the speakers facing each other with a 10 cm gap. Connect the microphone to the oscilloscope's
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Attach the output of each function generator to its respective speaker as well as to the input of an oscilloscope. You can use two multimeters to monitor the signal frequency of each generator. When the two signals are slightly different in frequency, a beating can be heard from the speakers and the beating signal can be observed on the screen of the oscilloscope.
  
 
==Keywords==
 
==Keywords==
 
+
beat, beating, frequency, hertz, speakers, microphone, generator
  
 
==Images & Movies==
 
==Images & Movies==

Latest revision as of 18:29, 27 July 2015


Back to 3C - Acoustics
PIRA index: 3C55.35

Description

Two speakers, each attached to their own signal generator and connected to an oscilloscope demonstrate beating if their frequencies are slightly different.

Equipment

  • two frequency generators
  • two speakers
  • oscilloscope
  • two multimeters
  • various cables

Instructions

Attach the output of each function generator to its respective speaker as well as to the input of an oscilloscope. You can use two multimeters to monitor the signal frequency of each generator. When the two signals are slightly different in frequency, a beating can be heard from the speakers and the beating signal can be observed on the screen of the oscilloscope.

Keywords

beat, beating, frequency, hertz, speakers, microphone, generator

Images & Movies