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lossless sound quality

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lossless sound quality

The principle of these audio compression methods is to keep as much as possible the parts that are easy to hear for the human ear.

In the main constant bit rate (CBR) mode, audible data in the audio is removed and it is easier for the human ear to hear. The more information that is retained for the part, the less information that is retained for the less audible part. As sound complexity increases, the degree of sound quality degradation becomes more apparent. For example, when listening to pure human music voice performances and performances combined with background music, pure The degree of degradation of the compressed music of the human voice is less obvious than that of the original file.

As for the lossless sound quality provided by today’s streaming platform, there are many formats, but strictly speaking, these formats, including flac and ALAC, belong to lossless compression (non-destructive data compression) rather than quality. lossless sound in a narrow sense, but due to its performance it is almost the same as WAVE, but the file is small, the decoding speed is fast, and it can be used in streaming services, so it is also a representative format of lossless sound quality that has entered the era without CD support, and it is also the current music streaming service.

Also, MQA like Tidal is a more controversial format, because although MQA is lossless audio compression in a broad sense, it focuses on driving high-quality music files that are above CD quality at a size similar to those of CD quality flac files. , but it can also be restored to the original high-quality audio format, but the controversial point is whether the higher compression ratio can maintain the same real auditory sense as the original high-quality audio has always been controversial. At the same time, MQA requires a specific device to perform hardware decoding. Yes, many devices can only decode MQA through software.

▲Currently called Hi-Res Audio generally refers to sound quality higher than that of a CD, but to be certified, the device must support the processing capability of the 24-bit 96kHz format.

However, since MP3 and AAC are previously planned destructive music compression formats, their purpose is to compress CD-level sound quality into smaller files, so most encoding specifications are presented in one presentation. CD-level 16-bit 44.1 kHz or 16-bit 48 kHz; but MQA is a format with a small file size that locks in high sound quality requirements. Basically, the MQA format will be music equivalent to 24-bit PCM or higher.

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lossless sound quality

Although lossless sound quality and high-quality streaming services have appeared on the market for a while

Like Apple isn’t the first to make true wireless earbuds, but it has ridden the wave of the market, with Apple’s launch of so-called hi-fi. compressed sound quality in Apple Music. In fact, after the lossless compression commonly known in the audio industry, lossless sound quality and high sound quality have instantly become a hot topic for many people to discuss, but whether the benefits of quality Lossless sound systems are really Obviously, the author will devote some space from theoretical concepts to practical levels. The difference is a simple overview, but the following arguments focus on easy understanding, so some of the descriptions are not entirely accurate.

What is lossless sound quality? What is the sound quality of the music we usually listen to?
The photo mentions * Introduction to KKBOX sound quality (including format), release year, sound quality, including numbers, KKBox, streaming media, Hi-Res Audio and Hi-Fi

▲ Both AAC and MP3 are destructive compression, while FLAC and ALAC are lossless compression

Before we get into the details, let’s talk about what is called lossless sound quality; From the author’s concept and cognition, the so-called lossless sound quality is a relative word rather than an absolute word. The main source is the relative word born due to the appearance of the MP3 music compression format; after the music industry went digital, digital music files were generally recorded via PCM encoding, and WAVE files were generally used on CDs. The time and space situation that MP3 was born into was because hard drive capacity was generally small at the time. To store a large amount of music data in storage space, you probably need to compress the files.

The reason why MP3 cannot be called a lossless format is because it essentially compresses the original WAVE in a way that limits the bitrate by combining concepts like the psychology of sound. The bitrate compression mode, compared to the bitrate of the original WAVE file, compresses at least in a range of 1:4 to 12:1. The higher the bitrate, the greater the amount of retained information. For example, AAC format also adopts similar audio psychology for compression, but the efficiency is better than MP3. Therefore, most of the lossless sound quality of most streaming platforms currently uses AAC as the mainstream.

FLAC audio format

FLAC stands for Free Lossless Audio Codec and, as the name suggests, it is a lossless compression audio format. Lossless formats are those that can reduce audio data in a way that is comparable to compression algorithms like ZIP or RAR lossless.

Advantages over these methods include optimization of audio data compression and therefore significantly better compression rates, direct playability on audio players, ability to add ReplayGain information and tags to files, as well as a wide support in many operating systems.

We want to draw the attention of users who are interested in archiving their collection and who do not have space problems, about this type of audio formats, since they represent the best solution for us to avoid uncertainties regarding the correct configuration or future security when using Avoid lossy codecs.

The possibility of always being able to restore the original bit, precisely by decompressing it, means that quality losses due to incorrect settings are excluded and a format change at a later time is also possible without loss and without re-copying the audio CD.

FLAC is now one of the best known and most popular codecs, as it is feature-rich and open source, free to use, and platform independent. FLAC is increasingly being used by audiophiles to archive CDs and distribute free music, and it is also enjoying increasing popularity among hardware manufacturers. The format has been a part of Xiph.org since early 2003, a project from which the lossy audio format Ogg Vorbis emerged.

Properties.

-no loss of quality, neither audible nor measurable

-very high encoding and decoding speed (test results)

-as part of Xiph.org, a free and open audio format

-Pauseless playback is of course supported

-Flexible volume adjustment using ReplayGain method

-very flexible labeling system

-Multi-platform software support (Windows, Linux, Mac OS X and others)

-Storage of up to eight audio channels (and therefore stereo, 5.1, 7.1)

-High resolution support (up to 32 bits and 655,350 Hz, that is, well beyond CD and DVD-Audio)

-Hardware players are available

-not patented, manufacturers do not pay license fees for its use

.
Recommended encoders and settings.

Download the FLAC encoder:

flac.exe 1.3.0 for Windows

libmmd.dll (possibly required file, copy to same folder)

The source of the encoder is rare goods. Binaries for other platforms can be found on the FLAC home page.

With FLAC, you only need to specify a compression level between -0 and -8. Lower levels result in faster compression, higher levels result in smaller file sizes. Experiment a little, which is the best compromise for you. Like the developer, we recommend the parameter -5, which is also the standard setting, that is, it does not need to be specified.

While the encoding speed slows down significantly at higher settings, the compression rate does not improve to a degree that warrants it. For example, the difference between levels 5 and 8 is usually a few hundred kilobytes, which is quite insignificant in relation to the size of the files. The subsequent decoding speed is not affected by the level of compression.

The original files are usually compressed between 40 and 75% of the original size. Bit rates generated for audio CDs are typically in the 700-1050kbps range, typical album sizes are 320-440MB. However, depending on the source material, the results may differ.

What is really … FLAC?

FLAC (Free Lossless Audio CODEC): Unlike lossy formats like MP3 or the lossless AAC method of storing audio files. Any audio enthusiast who values the highest quality of their digital music collection should consider saving their tracks in FLAC format.

FLAC vs MP3

FLAC vs. MP3: lossless and lossy

As you can read from the English name, FLAC is free and lossless audio compression. Everyone knows the audio compression principle of the MP3 file format. On a commercially available audio CD, a typical three-minute song takes up around 30MB, after conversion to MP3, on average only about one-tenth of that, or 3MB.

Lossless FLAC Audio

The reduction is very high, especially noisy, and consciously non-perceptible parts of the original signal are lost, which is hardly a restriction for listening pleasure. However, it is never possible to calculate exactly which parts are really irrelevant to the listener, so useful information is also destroyed during compression – the quality decreases compared to the original.

This is where FLAC comes in. This codec does not compress the audio signal according to psychoacoustic methods, but rather mathematical ones. Although FLAC has a relatively low compression rate (on average, the above-mentioned three-minute track in FLAC format would be around 15MB in size), the quality is exactly the same as the original CD. The fact that the file size can still be reduced is due to the fact that musical signals contain redundant information from a mathematical point of view due to their high periodicity. Therefore, FLAC is perfectly suited to digitally archive your lossless CD collection.

How can I play FLAC files?

Common audio players can play FLAC files. In addition, more and more audio devices, such as AV receivers or Blu-ray players with USB or network connections, can play not only MP3 but also FLAC. Teufel’s audio transmission systems also reproduce the format flawlessly.

Finally, the small drawback: CD files in FLAC format quickly get very large. With 100 CDs, you get a storage requirement of around 40GB, while the same number as an MP3 file only takes up about 7GB. But if you have a superior (diabolical) system at home, you will quickly appreciate that you are hearing exactly what the music producer had in mind when the recording was made: an impressive listening experience with no compromises.

Conclusion: is FLAC the audio format of the future?

FLAC is a format that compresses audio data without loss. So it is qualitatively equal to CD.
FLAC files are as easy to create as MP3s, but they take up much more space than MP3s.
The audio format is ideal for digitizing CD collections and adapting them to the future.

Flac what is it and why is it better than mp3

At the end of the 90s the engineer Leonardo Chiariglione together with Hiroshi Yasuda founded the MPEG group, creator of the MP3 audio compression algorithm that revolutionized the world of audio. Since then, music has become “liquid” and no longer needs a physical medium such as cd, disk, cassette to listen to the songs.

flac vs mp3

MP3 audio files began to invade the world thanks to the Internet and sharing programs like Napster. The mp3 had the merit of “compressing” the volume of files that could be shared even with those who did not have much bandwidth, even with a 56K modem. The audio quality was excellent, but for audiophiles it was not enough. At this point the FLAC enters the scene.

FLAC (Free Lossless Audio Codec) is a music file format that offers perfect copies of a music CD, but at half its size. It is compatible with many phones (including iPhone, with an app), portable MP3 music players, CD players, and hi-fi stereos. FLAC files are available for roughly the same price as the MP3 equivalent in online stores and they sound much better.

Today, almost all record labels sell songs in this format online and consumers can purchase lossless music from leading independent artists.

flac

FLAC first appeared in 2001 as an open source alternative to other lossless formats that emerged at the time. These include Apple Lossless (ALAC), Microsoft WAV (Waveform Audio Format), and WMA Lossless. But these formats had drawbacks. While ALAC has a loyal following among iPod and iPhone users, it hasn’t had much circulation outside of Apple products.

The WAV format is very popular among Windows users and is compatible with iOS devices, but the problem is the file size, they are very large and cannot contain the “tag” data: artist, album name, lyrics , etc. .

The FLAC format not only supports tags, but is also compatible with most music players. Apple is the only real obstacle, because while in 2017 there was talk of hardware support on both the iPhone 8 and X, in the end nothing was done. However, there are simple solutions for both iOS and Mac users.

WHAT IS THE DIFFERENCE BETWEEN MP3 AND FLAC?

MP3 is a lossy format, which means that parts of the music are removed to reduce the file size. It is supposed to use “psychoacoustics” to remove overlapping sounds, but it is not always successful. Drum cymbals, reverb, and guitars are generally the sounds most affected by MP3 compression and can sound really distorted when too much compression is applied, especially when it goes below 128 kbps.

Like MP3, FLAC has been embraced by the music industry as a cost-effective way to distribute CD-quality music and does not have the hearing impairments of MP3s. The FLAC is lossless, it is similar to a ZIP file, it is almost the same as the original when unzipped. Previously, the only way to get files “lossless” was through the uncompressed CD formats CDA or WAV, but neither is as space efficient as FLAC.

HOW MUCH SPACE DOES THE FLAC TAKE UP?

While FLAC files are up to six times the size of an MP3, they are half the size of a CD and can have the same increase in audio quality. Also, FLAC is not limited to just 16 bits (CD quality), it can go up to 24 bits / 192 kHz.

But regardless of whether you are using 16-bit or 24-bit quality files, FLAC has become a standard in the field of music. Despite competition from proprietary formats like MQA and DSD, FLAC remains competitive.

What is FLAC and its advantages?

FLAC is an audio codec and the abbreviation stands for Free Lossless Audio Codec (Lossless Audio Compressor / Decompressor) and is a format similar to MP3, but infinitely superior in terms of quality as there is no loss. FLAC is comparable to WAV format in terms of quality and still has some advantages, as you will see below.

The compression performed by the FLAC codec does not delete any information in the data, as it happens with codecs such as MP3, AAC, Vorbis and others, which cut frequencies (they are understood as musical instruments) and eliminate information in the audio, thus discarding important data of the music.

FLAC uses a process similar to that used by WinZip, WinRAR and many other programs that compress data without discarding any information, except that with FLAC the compression is much better because it has been specifically programmed for audio and can be heard on many devices and software, such as Windows Media Player, Winamp or any other application that uses the Directshow filter. And it happens in real time and without forcing your system, like an MP3.

Comparing FLAC to a format like WAV, the main advantage is reducing the file size, which provides better storage, which is usually 40% to 50% smaller. Additionally, FLAC has the ability to embed MetaData or tags (data in data) within the audio file, which are similar to MP3 IDE3 tags, which is not possible in WAV. These tags or labels are used to store important information such as artist name, song, font, year, cover image, etc. You should include these labels or tags every time you burn (rip) a CD, so you can easily organize and find music in your digital libraries. Click here to see how FLAC behaves in Windows Media Player compared to WAV.

If the FLAC codec is compared to MP3, the biggest difference is in the integrity of the audio source, which is maintained in FLAC, which is not the case in MP3. And as I mentioned, you can use your songs encoded with the FLAC codec normally on your computer, just like MP3.

FLAC is the most popular and efficient format used by CD owners who want to preserve their collections or make their digital library perfect. If the original CD is lost or scratched, a FLAC copy of the tracks on the CD will ensure exact duplication of the CD at any time. Restoring from a file like MP3 is impossible. If Exact Audio Copy (EAC) is used to extract tracks from the CD, as shown in the How to Copy CD Properly with Exact Audio Copy (EAC) guide, which you can read by clicking here, a CUE file will be created that will allow, among others things, burn a CD that will be identical to the original, including song order, CD text, and more, much like a very small ISO image.

Click here to see a page that compares codecs that don’t discard song data or information (lossless codecs). This page was created by the HYDROGEN AUDIO website, highly respected by professionals, in terms of audio information.

Don’t forget that there are many programs that convert FLAC to MP3 or another format. But do the conversion to a copy, so that the FLAC file is kept for future conversions and / or archived, after all it is the master file. And for this work I suggest an excellent utility, which is the dBpowerAmp Music Converter R12.4 REFERENCE, which in addition to being super light and working in any version of Windows, is very easy to use. For those who use DAW (Digital Audio Workstation), the FLAC codec can be used normally with the help of plugins or filters.

It is interesting to mention that a file encoded with a high bit rate allows reducing the sample, which in Portuguese means reducing the bit rate and, consequently, the size of the file without generating such obvious compression devices, and a song encoded with a low bit rate does not allow upstream sampling, that is, increasing the bit rate without losing audio quality and without generating compression devices. Technical information and details about encodings For those who like technical information, I will be brief in the examples and explanations about the compression process of music files. Many encoders use a low pass filter to encode (from now on I will use the abbreviation LPF) The filter is configured to cut frequencies above a certain point and let other frequencies pass. The reason they were programmed to do this is that high frequencies are more difficult to encode, and since most computers in the last decade (decade of the advent of MP3) were slow, the only solution was this.

What is FLAC audio format and why does music feel better?

A FLAC file is a compressed audio file in the Free Lossless Audio Codec (FLAC) format, which is an open source lossless audio compression format. It is similar to an .MP3 file, but it is compressed without any loss of quality or loss of original audio data. Therefore, we understand that FLAC has a better quality than MP3. In fact, these two formats cannot really be compared on the same level if we talk about “quality”, since FLAC is like having an original recording, while MP3 is not. Simply dotardi, a mini hi-fi system, but also a good audio player on the smartphone to notice the difference when listening to a song.

Compressed audio files

For regular listening, you are more likely to use a lossy format with quality loss. These files save a lot of space, leaving you more room for songs on your portable player, and if they have a high enough bitrate they will be indistinguishable from the original source. These are the formats you are likely to come across:

MP3: MPEG Audio Layer III, or MP3 for short, is the most common loss format. So much so that it has become synonymous with downloaded music. MP3 is not the most efficient format of all, but it is certainly the most compatible, making it our n choice. 1 for audio loss. You really can’t go wrong with MP3.

AAC: Advanced Audio Coding, also known as AAC, is similar to MP3, although it is somewhat more efficient. This means that you can have files that take up less space, but with the same audio quality as MP3. And, with Apple’s iTunes making AAC so popular, it’s almost as MP3 compatible. I’ve always had a single device that couldn’t reproduce CAA correctly, and it was a few years ago, so it’s pretty difficult to make a mistake with CAA.

Ogg Vorbis: The Vorbis format, often known as Ogg Vorbis thanks to its use of the Ogg container, is a free and open source alternative to MP3 and AAC. Its main advantage is that it is not limited by patents, but this does not affect you as a user: in fact, despite its open nature and similar quality, it is much less popular than MP3 and AAC, which means that less players support it. As such, we don’t actually recommend it unless you have a strong interest in open source.

WMA: Windows Media Audio is Microsoft’s proprietary format, similar to MP3 or AAC. Actually, it offers no advantage over other formats and is not even supported. There is very little reason to copy your CDs in this format.

FLAC vs MP3

in terms of quality, the first always wins. Does that mean that better quality leads to better sound? Yes and no. The point is yes, there is a very clear difference in sound when listening to FLAC files. This only applies when they use good headphones and a suitable sound system.

If the person tries to listen to the FLAC files while wearing cheap headphones: the magic is lost and unfortunately the FLAC may sound like MP3. That is why many people say that they do not feel any difference between FLAC and MP3 and it is obvious that they choose MP3 instead of FLAC, in addition to the same quality, the dimensions are smaller.

As you can see, it can be very difficult to distinguish between these two formats if you are not using good headphones and an audio system.

If you just want to listen to your favorite music and don’t have a super sound system at home, there is no point in buying FLAC files. If for some reason you are running out of memory on your laptop and phone, you may also consider a lossy format like Mp3. However, we do not always choose the smallest possible size because it is obvious that the quality may not be as high.

We believe that we should all choose formats without loss, because we deserve the best musical experience. If you love music, you need to make sure you get the most out of it with the help of good headphones and other devices.