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  • Elvira Ikotin-Lajter

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    September 25, 2024 at 4:36 pm
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    Sound waves interact with each other through several key processes:

    1. Interference: When two sound waves meet, they can interfere with each other. This can happen in two ways:

      • Constructive Interference: When the peaks (compressions) of two waves align, they combine to create a louder sound.
      • Destructive Interference: When the peak of one wave aligns with the trough (rarefaction) of another, they can cancel each other out, resulting in a quieter sound or silence.
    2. Reflection: Sound waves can bounce off surfaces, creating echoes. This is why you might hear your voice return to you in a large, empty space.

    3. Refraction: As sound waves travel through different mediums (like air to water), they can change speed and direction. This bending of waves can alter how we perceive the sound.

    4. Diffraction: Sound waves can bend around obstacles and spread out after passing through openings. This allows sounds to be heard even when the source is not in a direct line of sight.

    5. Doppler Effect: When a sound source moves relative to an observer, the frequency of the sound changes. If the source approaches, the sound seems higher in pitch; if it moves away, the pitch appears lower.

    These interactions contribute to the complexity of sound in different environments, affecting how we perceive music, speech, and other auditory experiences.

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