From the course: Microphone Techniques: Essentials

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Sound waves

Sound waves

From the course: Microphone Techniques: Essentials

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Sound waves

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- [Instructor] Many of you already know that acoustical sounds cause waves in air, much like dropping a pebble in water causes waves in water. These waves in air have a crest and a trough that go above and below the still air status, causing a push on our eardrum from the crest, and a pull on our eardrum from the trough. So, whether our eardrums hear a sine wave, the simplest wave, or the sound of an entire symphony orchestra, it is simply being pushed and pulled in direct correlation to the rising and falling air pressure caused by the sound wave. In the same way that a microphone is a transducer, our ear converts the push and pull on our eardrum into electrical signals that our brain interprets as sound.

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