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Results and Conclusion

For this project, I was experimenting with the Doppler Effect.

For the first simulation I simulated a moving source with an observer standing on the path of the source. This gave me a constant tone a little higher than the source frequency when approaching, and a tone a littler lower when moving away. The closer the source, the higher the volume.

For the second simulation, I placed the observer off the path of the source. This caused the frequency to decrease throughout the simulation reaching the source frequency when the observer is perpendicular to the source path. The volume increased until this point and decreased afterward.

The third simulation is the same as the second except with three tones instead of one.

The final two simulations were the same as the first two except I took into account the listener having two ears .17m apart. This gave two versions of the signal with one being a slight delay of the other. I then created a audio file using these two signals.

In conclusion, this project gave me an understanding of how the doppler effect works both mathematically and acoustically (the way it sounds).