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Placebo effect? Can you distinguish an mp3 320 kbs vs a FLAC?

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Studies have shown that most people can NOT distinguish an mp3 at 323 kbs (That is, with the best quality) from a FLAC file.

MP3 vs FLAC

We all know that in theory an mp3 is a format that discards information to achieve a small size; or, indeed, due to this ability to take up little space on the disk, but sounding very similar to the original wav was what propelled fame to mp3.

The Mp3 is dead.

Dozens of times it has been written about the undeniable advantages of the formats that do not lose information (looseless), it could be thought that people would turn their backs on the mp3.

MP3 vs FLAC

Some have warned that it is not so likely that this will happen, since most of the audio players (for example, those that come from the factory with the cars) play mp3s but not Flac.

Placebo effect?

But others have pointed out that untrained human hatred CANNOT distinguish an mp3 recorded at its highest quality from the FLAC.
For which to show yourself as a lover of FLAC and a fanatic defender of that format, it is more a snobbery full of blah, blah blah and technicalities that ignore that the human ear is not a robot and that in reality most people they cannot distinguish between one and the other.

And we combine the convenience of using mp3s because the devices are designed for mp3 and not for FLAC, together with the fact that in reality most people cannot distinguish one from the other … this should explain that that the mp3 is dead, is more a product of fanaticism than realism.

Also, they forget another problem.

When digital music is recorded it requires using a compressor … which did not happen with music recorded on tape, that is, vinyl.

That is why there is another faction that does not proclaim and sing songs in favor of FLAC but rather the return to vinyl (forgetting all the advantages and comforts of digitization).

In other words, all these discussions seem more like a mixture of snobbery and puritanism than something realistic.

What studies have shown

What we cannot ignore is that undoubtedly 99% of people (including many experts, musicians, etc. who talk hours about bitdepth, bitrate, etc.) can NOT distinguish a WAV, from a FLAC, from an mp3 recorded at qualities superior to 160 kbs.

Personally, we celebrate that all these formats exist and that we are coming to the time where every person can use and love the format of their choice and even defenestrate and even hate other formats and discuss long hours about their technical knowledge.

But yes, it seems that it is basically a placebo effect.

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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.

Impossible to detect the difference between MP3 and FLAC

New comparative study carried out by experts debunks the myth that the FLAC sound (Free Lossless Audio Codec (FLAC) or Codec free lossless audio compression, is considerably better than that obtained in MP3 or AAC files.

According to Wikipedia, FLAC is a format of the Ogg project to encode audio without loss of quality; that is, the initial file can be completely recomposed, although with the disadvantage that the resulting file takes up much more space than would be obtained by applying lossy compression.

Other formats, such as MP3 or ACC (Advanced Audio Coding), irreversibly lose part of the original information when compressing the file, in exchange for a great saving in file size.

The site Trusted Reviews has published an analysis called “Sounds Good to Me”, the conclusion of which is that there is no considerable difference in sound in FLAC and MP3, at least for the average user’s auditory perception.

In their study, Trusted Reviews made the assumption that there is a difference, and that people with developed hearing abilities could hear the difference between a 192 kbps MP3 file and a FLAC file, both obtained from the same original CD.

Only one user notices the difference between Mp3 and FLAC

The previous assumption was not confirmed in the facts, since among the seven people who participated in the analysis there was only one who detected the difference between FLAC and MP3. In many cases, MP3 at a rate of 192 kpbs had a higher score than FLAC.

This result was further strengthened when comparing 320 kbps MP3 files with FLAC files, since half answered correctly, and half were wrong. The percentage of participants who preferred MP3 was even higher.

The trial used an iBasso D3 Python USB DAC and Beyer Dynamic DT770 Pro headphones.

It should be noted that studies of this type have a certain margin of error. According to experts in comparisons such as the one carried out by Trusted Reviews, there are psychological factors, such as many users quickly forgetting their perception of what they have just heard, so the order in which the test is carried out is highly relevant. Non-expert users are also influenced by their mood and, in fact, by the music they listen to.

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.