Best digital quality audio formats


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Best digital quality audio formats

WAV vs MP3

It is often a measure of the quality of a track. There is a lot of debate about which is the best music format. So I recently witnessed a similar dispute. Not virtual, but real. In general, I decided to write an article on audio formats and try to explain in human language which is the best audio format. I’ll try to avoid abstruse terms and feature descriptions, so as not to hurt the brains of readers again.

High quality audio formats

I immediately admit that I am not going to sing praises in honor of any particular audio format, just as I am not going to “disappoint” anyone. Let everyone decide for themselves. I will not go into the “jungle” and review the most famous formats of high quality music.

I believe that these disputes are conducted by people, to put it mildly, not well versed in this matter. Because professionals (that is, people who know what they are doing and why they are doing it) will not do it. With today’s abundance of audio formats, anyone who needs it will find what they need. Agree, a dispute between a tractor driver and a driver about which is better – a tractor or a car will look silly. For some purposes a tractor, for others a machine. Here it is the same.

WAV is rightly considered the highest quality music format. This audio format is not compressed or lossy. Used for recording and processing sound, this is the highest quality sound, as the WAV recording is not compressed. Encoded to any other audio format. Well, as a result, it “weighs” a lot, so it is mainly used for sound recording.

Lossy audio compression

I’ll start with the well-known and widely used (though not always loved) MP3 format. This audio format is actively used everywhere and everywhere, where it is needed and where it is not needed. But this does not mean that it is not worthy of the place it occupies in its niche. Very worthy. Although he has been “sitting” in his niche for about two decades, no one has “kicked” him out of there yet. And there were many who wanted to say it. And the main favorite of them is WMA (Windows Media), which was conceived by Microsoft as an alternative to MP3. As a result, it is an alternative and it is, despite the best efforts of the developers. The next character is OGG. Despite the broader possibilities than MP3, for example, it never received widespread acceptance. Although it is compatible with many operating systems. Perhaps the AAC audio format is worth mentioning, which was supposed to change on the relay. Encoding quality has been improved and compression loss reduced. But Ay.

The main advantage of these formats is their small size. The downside is the loss of quality.

Lossless audio compression
FLAC is perhaps the most popular lossless audio format and encoding codec. Music lovers are gradually switching to this format. WavPack competes with it, but it is not that popular. It’s the same story with Apple Lossless, which reduces the size to 60%.

Here the story is exactly the opposite: the quality is better and the size is greater.

Skeptics say that it is almost impossible to distinguish MP3 (320 kbps) from Losless by ear. “And if there is no difference, why pay more?” In fact, on ordinary equipment, it is quite difficult to feel the difference in audio formats, even for music lovers. But there are those who immediately feel this difference (they personally attended the experiment). But when listening to a good device, the difference is huge. The problem is that not everyone can afford a good device.

Compressed using special lossless audio codecs, it can be restored with absolute precision if desired.

If you take a normal audio CD with analog sound, record it in WAV format for uncompressed sound, then compress WAV using lossless codec, then decompress the resulting sound file into WAV and burn the result to a blank CD, you can get two completely identical audio files COMPACT DISCS.

The advantage of lossless for storing an audio collection is that the quality of the recordings is much higher than that of lossy codecs and they take up less space than uncompressed audio. It is true that lossy files are smaller than lossless music files. Most modern playback programs understand the lossless format. Programs that cannot play it can easily learn it using the lossless plugin. What are lossless audio formats?


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Recognize high quality audio files.

How can we distinguish real quality audio files from poor quality files?

It will have happened to everyone at least once to hear a song and to notice that it was “of low quality”, even if it was quite “difficult”! The size of an audio file is not always a sign of quality, but why? Before we understand it, a premise is needed that we put into practice to see if the files we have are really qualitative without trusting our ears too much.

high quality audio

Audio files

Maybe not everyone knows that every ‘file’ we have on our PC is nothing more than a list of bytes or bits that are no more than 0 and 1. To get a picture, imagine a 10MB file (MegaByte exactly), which can be a song, a fairly large picture, 10 seconds of HD video, it is about 80,000. 000 bits (1 byte = 8 bits and 1 bit = 0 or 1) or 80 million 0 and 1, almost the population Italian.

high quality formats

However, audio files that should simply contain “sound waves” are not always “pure”. That said, there are algorithms that can drastically reduce and compress the size of the audio file. However, it is obvious that there is more information about sound waves. The higher the definition of the audio, the larger the file that contains this information.

In view of this and depending on the “compression” we use, we have different files and qualities. There are algorithms that can store as much information as possible, and others that instead lose a lot of information and free up space. The former generally produce very large files and are also called “lossless” or “less lossless” precisely because they maintain the highest possible quality. 4 minutes of a song can also take 40 MB to 100 MB depending on the algorithm that compresses the files.

The best known and most commonly used are algorithms that allow you to store so much information, and others that instead lose a lot of information and gain space at the same time. The former generally generate very large files and are also referred to as “lossless” or “less lossy”. Precisely because they maintain the highest possible quality, 4 minutes of a song can also take between 40 MB and 100 MB depending on the algorithm that compresses it. The best known and most commonly used are

.wav / .wave WAVEform audio file format
.flac Free Lossless Audio Codec
.m4a Apple Lossless variant
.wma Windows Media Audio LossLess variant
The others, on the other hand, are perhaps the most common and allow you 4 minutes at around 10 MB if they are and are of high quality

.mp3 MPEG-1/2 Audio Layer III
.m4a Advanced Audio Coding Variant (AAC)
.wma Windows Media Audio variant

Which compression should I choose?

Now it is clear that we have to find a compression algorithm that allows us to maintain multiple frequencies. With a reduced size, our devices would be full immediately if each song occupied 30 MB!

After analyzing numerous songs with different extensions and looking around the internet a little, I came to the conclusion that the best encoding algorithm is undoubtedly the variable bit rate AAC compression with the .m4a extension, the best algorithm that you can use keep most frequencies higher in very small dimensions. Let us see together how the ghosts try to play the previous song in Apple Lossless (4 minutes and 23 seconds) first in MP3 with 320 kbps and fixed bit rate, then always with 320 kbps in variable bit rate (maximum quality) and finally in AAC to convert with variable bit rate (maximum quality), including the file size and the maximum frequency