Interference with two speakers?

In summary, the conversation discusses a scenario where two speakers emit sound at a frequency of 1000Hz in phase, with a listener walking 8m from their midpoint along a parallel line. The question asks for the distance the listener has to walk from the central maximum in loudness to the first minimum in loudness, using the speed of sound as 340m/s. The speaker is unsure how to approach the problem and asks for help. The question also raises the issue of the phase of the sounds at the minimum point and its implications for the distances to the speakers.
  • #1
TheTourist
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Interference with two speakers??!

Two speakers placed 1m apart emit sound of frequency f=1000Hz in phase. A listener walks along a line that is parallel to the line joining the two speakers and 8m from their midpoint. What is the distance he has to walk from the central maximum in loudness to the first minimum in loudness? use 340m/s for the speed of sound

I have done similar questions to this with no problem, but this question has completely stumped me and I don't know where to start.

Thanks
 
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  • #2


what can you say about the phase of the sounds received at the point where there is a minimum? what does this mean for the distances to the speakers?
 

1. What is interference with two speakers?

Interference with two speakers is a phenomenon that occurs when two speakers are producing sound waves at the same time and location. This results in the combination of the sound waves, creating areas of constructive and destructive interference that can affect the overall sound quality.

2. How does interference with two speakers affect sound quality?

Interference with two speakers can affect sound quality in a few ways. Constructive interference can result in a louder and clearer sound, while destructive interference can lead to a softer or distorted sound. It can also cause a "dead zone" where the sound is canceled out completely.

3. How can interference with two speakers be minimized?

Interference with two speakers can be minimized by ensuring that the speakers are placed at equal distances from the listener and facing in the same direction. Additionally, using speakers with directional capabilities or adjusting the position of the speakers can also help reduce interference.

4. Can interference with two speakers be beneficial?

Yes, interference with two speakers can be beneficial in some cases. For example, it can be used to create a surround sound effect in home theater systems or to cancel out unwanted background noise in certain environments.

5. Is interference with two speakers the same as noise cancellation?

No, interference with two speakers and noise cancellation are two different concepts. Interference with two speakers is a physical phenomenon that occurs when sound waves interact, while noise cancellation is a technology that actively reduces or eliminates unwanted background noise using electronic signals.

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