
How and why is the audio compressed to an mp3?

What is the use of converting to mp3?

As we have already been explaining, this entire topic is based on and one can only speak of “quality” if one refers specifically to the human ear.
We humans do not consider better quality the ability to record frequencies that we cannot even hear, neither because they are very high frequencies nor very low frequencies.
Nor do we consider a recording of poor quality that has not been able to record these frequencies.
Some animals would possibly have a different opinion.
So, having this point clear, we have to consider high fidelity to a recording that could faithfully record those frequencies that we humans can hear. The rest does not interest us.
So, all this first issue of encoding or compressing is based on that, on ensuring that the frequencies that the human ear can perceive remain with the greatest fidelity.
And we benefit from knowing that there are other inaudible frequencies, but they take up disk space and we can remove them without experiencing a drop in quality.
Mp4Gain is a program that handles these areas very well and manages to make it sound as good as possible and nobody will notice the difference between one format and another, because they all sound of the best possible quality.



