If a sound source moves toward an observer, how does this affect the perceived frequency?

Answer

The frequency increases because the wavefronts are bunched up

When the source moves toward the observer, each subsequent wave crest has less distance to travel, causing the wavefronts to bunch up, which results in experiencing more crests per second, thus increasing the observed frequency.

If a sound source moves toward an observer, how does this affect the perceived frequency?

#Videos

Doppler Effect - How Motion Changes Sound Frequency - YouTube

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