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2.2 MP3 file format
An MP3 file is your best option when optimizing sound files used for non voice applications. Here is a short outline of the MP3 file format.

  1. There are certain sounds that the human ear cannot hear.

  1. The human ear hears some sounds much better than other sounds.

  1. If there are two sounds playing simultaneously, we hear the louder sound but cannot necessarily hear the softer one.

It's True!
It's True!
MP3 uses a technique called perceptual noise shaping. This is good for creating music files.

Tip
Tip
You can maintain quality while using well-known compression techniques to shrink the sound files by up to a factor of 10.

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