The goal of an audio codec is to make an audio file that sounds good and is as small as possible for use with certain applications.

to make an audio file with the highest amplitude while making sure the decibels are not degraded.

to preserve the original sound quality regardless of conversions that affect sampling rate.

to upload audio files from your computer to your mobile devices.

to preserve the original sound quality regardless of conversions that affect sampling rate.

Explanation:

An audio codec can be defined as a codec that helps to cipher or decipher an audio file. It is a computer application that compact or extend an audio file without hampering with the original sound quality.

The main object of an audio codec is to compress a high-quality audio file into a limited size without distorting the quality of sound.

Therefore, the correct answer is option C.