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FLAC or MP3: these are the differences

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FLAC vs MP3

FLAC and MP3 are common audio formats. We explain their similarities and differences in this practical tip.

Similarities Between FLAC and MP3

At first glance, FLAC and MP3 have a lot in common:
FLAC and MP3 are audio formats. Detailed information on FLAC files can be found in this practical tip.

Mp3 vs Flac
The audio information is compressed in both formats.
With both, compression works in several steps. One of them can be lossless mid-side encoding for both.
Strictly speaking, both MP3 and FLAC are codecs, that is, pairs of an encoder to compress and a decoder to play the file.
Both formats allow the addition of metadata as tags.
Streaming is possible with both formats, that is, near real-time streaming.
WAV file in wave format
WAV file in wave format

Differences between FLAC and MP3

Despite the similarities, there are essential differences between FLAC and MP3:
MP3 is a psychoacoustic compression process, which means it changes the signal as you can see in the image. FLAC just changes the way the data is presented so that the file can be saved more efficiently.
MP3 is leaky due to the way it works. This means that the information in the original file is lost and errors occur. On the other hand, FLAC files can be used to restore the original without errors.
MP3 achieves a file compression of approximately one-tenth the original size. FLAC reduces the size of the source file by approximately half.
PCM files, like WAV, store continuous fluctuations in sound pressure as discrete values over time. With a high sampling frequency and depth, this process is virtually lossless. FLAC files store data from WAV files in a different way. However, the PCM file can be regenerated from it at any time.
MP3 files generate noise especially before the strong amplitude increases and reduces the dynamics of some frequencies and thus irreparably falsifies the output signal. However, if the encoding is good, the differences are subliminal
There is already a huge market for MP3 music, editing software and playback devices. Until now, FLAC has barely established itself in the area of music downloading, audio processing software, and in terms of playback devices.

FLAC or MP3: which is better?

The differences between FLAC and MP3 in particular show which format is more suitable for which application:
MP3 has the immense advantage of being available, widespread, and compatible with common hardware and software. In addition, there is the huge compression rate, which is particularly suitable for fast streams and large music collections.
FLAC has a decisive force: it encodes lossless audio files and is much more flexible and more compressed than ZIP or RAR files. FLAC is particularly ideal in the recording studio, but also for highly dynamic music or simply for archiving lossless audio CDs.

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Convert FLAC to MP3: what about bit rate?

If you’re the proud owner of a high-quality FLAC file music library, don’t worry about the bit rate (sample rate). But for lossy formats like MP3 or AAC, it is the bit rate that determines the sound quality. The previous default value was 128 kbps, today you just need to convert to 320 kbps. Almost any converter that converts from FLAC to MP3 should offer this setting.

Opinions differ about the bit rate: some do not hear the difference between an MP3 with 128 kbps and an MP3 with 320 kbps, others do. But if you start with a FLAC file, you should get the most out of your file and convert more than a few kilobits per second (kbps).

FLAC or MP3: do you hear the difference?

It’s a topic worth discussing, like in the hi-fi world: is there a difference between FLAC and MP3 files? The answer: yes, certainly!

If you don’t hear a difference, it’s not so much the file format, but the computer the song is playing on. If you listen to the same song in MP3 and FLAC format, you will notice a clear difference. A FLAC file simply contains more information. If you play this in a good installation, you will clearly hear the added value. Take the test yourself!

Hi-fi enthusiasts speak deeper. Music sounds fuller and more realistic. The best test is to switch between FLAC and MP3, because switching back to MP3 exposes gaps in the soundtrack. These frequencies are really beyond the audible range of people, or so they thought, but they still seem to be perceived.

However, the MP3 quality is sufficient for use in an MP3 player or smartphone. Although you can hear even finer nuances of the sound through the headphones, you can test it at home. Ambient volume also plays a role when traveling.

Lossless formats, such as the open source FLAC format, are the new standard. In terms of quality, they are comparable to a conventional CD, but take up much less storage space. This is made possible by a “smarter” compression process: while storing the same amount of digital information as on a CD, you save up to 30 percent more space. Therefore, if you want to digitize your CD collection, today it is important to use a lossless format like FLAC.

FLAC files not working? Make them compatible

However, there is also a small drawback to the FLAC format. Many playback devices, such as MP3 players, cannot play FLAC files, only MP3 files. However, it is not necessary to buy a new MP3 player with FLAC support. The audio converter (Mp4Gain), which converts FLAC files to MP3 files, can be found in this website

Once you download Mp4Gain, you can quickly convert your FLAC files to MP3. Then you can use them on a suitable MP3 player or similar device.

Flac vs Mp3, differences

In today’s world, it is important to understand the difference between the different audio files available.

The most common and current files are practically the files in the formats MP3, Flac and WAV.

Is there really a difference between MP3, Flac and WAV files? The answer is absolutely yes.

The difference is in the audio quality that these files can play.

What is the difference between MP3, Flac and Wav files? MP3 files are of lower quality because they are more compact and smaller. Flac files are a kind of compromise. With files in Flac format, it can be of very good quality and remain true to the original, which in any case is compressed by a certain percentage. Finally, there are the WAV files that do not use compression.

Therefore, the quality is better, but the size of these files is quite large, it is not compatible with any device these days.

It may not be easy to understand which audio file to use for your work, especially if you are a beginner in this area.

However, you don’t have to be afraid of it.

Once you’ve learned all the differences between the three audio files, you can really fix the problems by always using the appropriate file.

What are the differences between the categories in detail and when should you use a specific audio file?

Here’s a complete analysis for each audio file format that really helps you understand everything you need to know about MP3, Flac, and WAV files.

What is an MP3 file?
It starts with one of the most common files in the world of information technology, namely the one called MP3.

MP3 files have been around for years, so their development is common.

But what an MP3 file really represents.

Well, a general audio file is a series of numbers obtained by sampling the analog signal.

This scan responds to some parameters, which are the frequency measured in Khz and the resolution expressed in bits.

The MP3 file represents the most compressed form of an audio file, so to speak.

Finally, you need to understand that the MP3 file can remove all unnecessary parts of the digital file from the sequence and the final sampling, taking advantage of some imperfections of the human body to give it a clear and clean melody.

On the other hand, the MP3 file significantly reduces the quality of the sounds played.

In fact, all the different nuances of a certain melody come to the bone.

An MP3 is small if you speak it from the perspective of the memory. You should think of it as a kind of concentrate that gives you a remarkable but not 100% complete end result.

In the most extreme cases, an MP3 file can reduce the original tones and nuances of music or melodies to a percentage of 90%.

However, these formats are widely appreciated and used because they are not only practical and direct, but are now compatible with all technological devices, e.g. B. MP3 players, for which we recommend that you read our guide.

This means you can take them with you at any time and any product you have can read an MP3 file.

What is a flac file?
So at this point you need to understand what a Flac file is.

Well, it should be said that the Flac file has some major differences from its MP3 counterpart.

In fact, a Flac file is much more complex than a regular file and can be reduced by 90%.

First, you need to understand that Flac is actually an acronym that stands for Free Lossless Audio Codec.

It is always a format that is somewhat compressed, but files with this name have a certain property.

In fact, the file is lossless with no loss and maintains higher fidelity than the original sound.

With a Flac file, you have a clearer quality of the audio file, so you can clearly hear some details that can be lost if you use a different audio format.

The limited storage space when using the Flac format is very small and can reach a maximum of 50%.

However, when using such files, you should be aware that their use on the storage hard drive is important.

Not surprisingly, Flac files take up a lot more space than regular MP3s. In some cases, a special reader must be downloaded to read them. Many home theaters and receivers support this compression format.

Audio quality in different formats (flac vs. mp3)

In this post I am going to talk about what differentiates music from mp3 and flac. First, and before you begin, go ahead with the following:

The quality of a musical hearing depends (and a lot) on the audio card and the musical equipment (amplifier, headphones / speakers) used, and on the other hand it also depends on the sensitivity of one’s ear. A newborn with perfect hearing can hear from 20 Hz to 20,000 Hz. The normal thing for a young person is to hear nothing above 18 kHz, although some people with exceptional hearing can hear 20 kHz or even more. , and a person 25 years of age or older begins to lose hearing from 15,000 – 16,000 Hz. In addition to the frequency response (quantitative aspect), the qualitative aspect is equally or more important: that the waves at each frequency are produced in the most similar way to the original source.

Having said that, we fully enter the subject at hand.

Many people think that an mp3 sounds like the quality of a CD. This is not exact. Apart from the fact that a CD sounds with the quality that those who have recorded it have given it, mp3s are formats with loss, and that means that a good part of the original information is discarded to save space. The trick is that the information that is discarded is, as a rule, information that is “hidden” among the rest of the information. To give a simple example so that the idea is understood, if a person is speaking to me at a normal volume and suddenly a helicopter passes in front of us, the sound of the helicopter will eclipse in my ears the voice of that person; the wave of his voice will continue to reach my ears but I will not perceive the sound. Another example, so that I am also understood: if we could play two very similar pianos at exactly the same time in such a way that their vibrations coincided, the mp3 would “say” that “one of the pianos is left over”. This type of operation (but, of course, at a much more subtle level, of microscopic changes) is what is done so that the initial 40 or 50 MB that a song occupies on the CD are reduced, at most, to 9 MB or less, depending on the bitrate (128, 160, 192, 256, 320 kbps) of the mp3.

But all that information that the mp3 removes at a stroke is information that, from the original source, would reach us, and it is information that would affect us emotionally (an mp3 violin can hardly give us goosebumps), although consciously most of the time we do not know how to express the difference in words. The same happens, for example, when a person is recreated in virtual reality: sooner or later we will know that this person is not real, because virtual reality technology has not yet managed to recreate the microscopic details that we are capable of capturing and that make us identify a person as real and not virtual.

Other differences between an mp3 and a wav (Microsoft’s uncompressed wave file) or a flac (Free Lossless Audio Codec, free lossless audio codec) are noticeable after spending a long time listening to music. The mp3 ends up giving you a headache, while the original sound doesn’t. And to this we must add that there are certain songs that have the musical information arranged in such a way that the mp3 algorithm is not able to “guess” what it is that you are not going to be able to listen to, and the result is that there is a notable loss quality, especially in the treble. In fact, a 128 kbps mp3 cuts all frequencies starting at around 15 kHz, and this is something that most people with normal hearing can easily perceive.

So that you can hear the REAL differences that exist between the different audio formats, I have prepared several tracks in which I have done the following:

1) I have loaded the song from the original disc.

2) I have recorded it in different formats: flac, mp3 to 128, mp3 to 160, mp3 to 192, mp3 to 256 and mp3 to 320 kbps.

3) I have then loaded all the waves into the Sound Forge Pro 10.0 program.

4) I have synchronized all the waves bit by bit. This is necessary because the mp3 introduces a certain lag of milliseconds with respect to the original.

5) I have copied each mp3 wave (lossy quality) and mixed it on the flac wave (original quality, without loss) with the reverse polarity. If both waves were identical, the result would be silence. But instead, as the mp3 has less information (the wave has fewer resolution points, so that it is understood) there is a residual noise that corresponds, neither more nor less, to what the mp3 has less than the flac added to what the mp3 has more than the flac (the mp3 not only loses information; it also introduces noise that was not in the original recording).

6) I have recorded everything on flac. Contrary to what most people think, the fact of converting an mp3 to a higher quality format does not add quality, since the additional information “cannot be invented” by the mp3, and it is still absent. An mp3 transferred to CD continues to sound like an mp3.

Important note: In order to listen to the files, your player must be able to play flac. First of all, associate the files with the .flac extension to your player so that it opens them when you click on them. If they still don’t sound, then install the necessary codec or plugin.

As a player I recommend the AIMP2 or the Foobar2000; both are free and give exceptional audio quality (they reproduce the sound as it is recorded, without any attachments of any kind). For my taste, the best of the two is the Foobar2000, because it is also more stable and lightweight. The Winamp and the Windows Media Player color the sound (or in other words, they equalize it), which can be interesting if you have low-quality audio equipment and play mp3s at low bitrate (128 kbps), but, If the equipment is hi-fi and the music is encoded in a lossless format or played directly from the original CD, then the difference between Winamp or WMP and AIMP2 or Foobar2000 is quite noticeable.