What does the quality of an mp3 or audio file depend on? Part 2
How to improve audio quality?
We saw in the previous article that we must differentiate the gain, which in a hyper simplified way, could be defined as the power that an input sound had, against volume that, again in a hyper simplified way, we would define as the loudness or output volume.
All this starting from the detail with which we have achieved captidad the wave that produced some sound.
To this we would add the speed with which we can transmit that information to the device or computer.
If we use a low bit rate, we will discard much of that detail that we mentioned.
So, we have the samplerate and the bit depth which somehow help to draw the wave more precisely. Remember that this is a very simplified explanation.
We also have the bit rate that will indicate how much information we can transmit per second and therefore will also affect the quality of the wave that we are “drawing” and that the more faithful the better the original.
Finally we must take into account the gain that the sound had when entering and even its relationship with the noise.
And it comes as the last link in this chain, explained in a very simplified way, which would be the amplification that we would give to that sound so that it reaches a certain sonority.
All of this is handled very precisely and powerfully by Mp4Gain.
