Calculating Beat Frequency for Two Loudspeakers

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SUMMARY

The discussion focuses on calculating the beat frequency experienced by a person walking between two loudspeakers emitting a pure tone of 343 Hz. The person walks at a speed of 0.7 m/s, which affects the perceived frequency due to the Doppler effect. The apparent frequency increases as the person approaches one speaker and decreases as they move away from the other. The correct method involves applying the Doppler effect equations to determine the two perceived frequencies and subsequently calculating the beat frequency.

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  • Doppler effect principles
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  • Basic physics of sound waves
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Physics students, audio engineers, and anyone interested in sound wave behavior and frequency analysis will benefit from this discussion.

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Homework Statement


Two loudspeakers face each other at opposite ends of a long corridor. They are connected to the same sourrce that produces a pure tone of 343Hz. A person walks from one speaker towards the other at a speed of 0.7ms-1
What beat frequency does the person hear?
speed of sound= 343ms-1


Homework Equations





The Attempt at a Solution


I know the beat frequency equals the frequency of one take the frequency of the second. So if this is right does that mean it is 343 minus the second frequency. Can someone pleasae tell me if this is correct and any hints on how to work out the second frequency please. Thankyou
 
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Using the doppler effect wright down the expression for the apparent freqency of the source heard by the observer while moving from one speaker to another. Note that he is going away from one speaker and moving towards the other.
 
thanks for the help. I got the right answer
 

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