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FLAC audio format

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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

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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.

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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.

Lossless music: where do you find content?

With MP3 a few more years away, there’s no doubt that it will increasingly be abandoned in favor of lossless or, in the Molière language, lossless formats. At a time when even the iPhone is becoming FLAC compatible, let’s see how it is maintained by default and where to find content.

MP3 is a big step back in terms of audio quality. The success is mainly due to its practicality, as it took up little space on our thin hard drives and portable players (something that sometimes looked like a smartphone but was only used for music!). easily traded on a very slow website.

The format has evolved over the years, increasing the bit rate previously limited to 128 kbps to 320 kbps. Compression still overwrites the details of the sound and increasing the bit rate increases the file size, but the rendering is “almost satisfactory”.

Therefore, MP3 and other compression formats (AAC, Ogg Vorbis, etc.) are not the absolute evil, but lag behind CD quality.

Compared to them, FLAC and ALAC, among others, offer compressed lossless playback. Music files are 3-5 times larger than MP3, but offer minimal CD quality (16 bit, 44.1 kHz). Better yet, they are capable of playing high-resolution music (see our high-resolution article), the encoding of which is traditionally 24-bit / 96 kHz or even 192 kHz. At a time when Internet speed and storage are less of a concern, losses are bound to gain the upper hand and make the good news easier to find.

Walkman compatible with high-resolution files includes a DAC. They are a great way to have an audiophile player at home and on the go.

Lossless purchase and streaming

The non-exhaustive list below will lead you to certain platforms where you can drink without loss. Do not hesitate to tell us your good plans, we will integrate them into the article!

Quobuz: One of the ardent pioneers and advocates of high-resolution lossless formats is the French site Quobuz. Offers the purchase of FLAC files on CD or in high resolution. Subscribing to your entire catalog on FLAC 16bits / 44.1 kHz equates to $ 19.99 per month.

7digital: from CD-quality FLAC with 24-bit high resolution via MP3 at 320 kbps; 7digital offers the format option in its impressive catalog. No subscription, just buy, but on top.

Tidal: This streaming site is the answer of the artists on Spotify and Deezer. More concerned about the rendering because titles are encoded lossless, it pays the authors more. FLAC’s CD quality subscription formula is € 19.99, but the site is also starting to offer 24-bit transmission on 44.1 or 48 kHz thanks to an encoding format called MQA (Master Quality Authenticated) that can be encapsulated in a FLAC file .

Spotify and Deezer: The two music streaming giants are gradually switching to lossless music. A CD-quality Spotify Hi-Fi offer (16-bit / 44.1 kHz) instead of the 320 kbps Vorbis codec is being tested with some privileged subscribers. There is no official announcement or award yet, but it is only a matter of time. Deezer, for its part, offers a Hi-Fi formula with CD quality as part of a partnership with Sonos.

Homemade: FLAC is so emerging that we almost forget the obvious. And if we want to get files as CD, we start … buying the CD! Sometimes they are cheaper than their dematerialized equivalent. Then you can convert with software like CDex, Foobar 2000, Exact Audio Copy, etc.

Many other more specialized sites sell high resolution music: Super HiRez, HDtracks, ProStudioMasters. Some are not even concerned with compression, they offer record masters digital masters. A way to get closer to the artist’s intentions!

The equipment to enjoy lossless music.

The public is increasingly moving towards audiophile products.
Anywhere, iOS 11 or Android smartphones can decode a FLAC file. Some present their sound quality as the Honor 9, the Meizu Pro 6 Plus, the HTC U11, but in order to restore the sound scale and naturalness, it is recommended to use an analog converter.

The DAC, both portable and integrated into your stereo system, reproduces the sound spectrum better. More faithful, better defined, refines the spaciousness and richness of the details of each instrument.

These DACs, as they are called, come in a variety of sizes. Some are mobile phones, such as Audioquest’s DragonFly, which can be connected to a mobile (using an adapter) or a computer.

What are Flac files?

For some time now, people have been hearing about Flac files. But what are these ghost files and what are they for? If you read the following, you will have a clearer idea and the basis to delve into the matter.

Music, especially for the needs of broadcasting through the Internet, has been subjected to compressions, sometimes even violent, with specific algorithms, of which the best known and most used is MP3. This compression is capable of dramatically reducing the size of the part and unfortunately also counteracts the quality, while ensuring an acceptable quality reproduction. This sound treatment is called “lossy”, that is, with loss of information compared to the original.

waveform mp3 and flac

The search for the quality of listening shocks with this treatment ensures that you can store large amounts of musical pieces in small spaces, but at the same time makes listening less “exciting” and mortifies the commitment of musicians and sound engineers. So what can we do to have listening quality, easy storage and archiving? just use Flac encoding.

Flac stands for Free Lossless Audio Codec. By reading the definition well, we learn that it is:

Free: means it can be used at zero cost; The specifications of this format are open source, that is, free to use and are not covered by a patent that would impose the payment of royalties to the owner.
Lossless: Compression with this system is free from loss of audio information, therefore it means that the copy is gradually identical to the original and therefore the listening quality is preserved.
Files encoded in this way can be played on a wide variety of platforms, including PCs, home hi-fi systems, portable players (often called DAPs, short for Digital Audio Player), in the car, and more. Currently, DRM is not implemented, that is, there is no copy prevention method. This standard also supports labels that include cover images.

At this point a series of questions arise:

How can I create Flac files?

Files can be created from a software encoder installed on your computer. The best known is Mp4Gain, a program that additionally allows you to normalize the audio volume.

Can I buy Flac files?

Yes, you can buy Flac files online on the web at specific sites. The feature of these sites is that it can provide some artists with high-resolution encodings that can be up to 4 times higher than a CD – virtually the quality of the original Master recording!

How can I play Flac files?

Files can be played with devices that support this encoding: personal computers, hi-fi systems, portable digital players, and car audio sources. You should read the product specifications and make sure they are compatible.

What are the advantages over an MP3 file?

The quality, above all, equal to that of the original CD from which you made the “Audio Recording” to the high resolution similar to the original master of the recording room.

What are my disadvantages compared to MP3?

The file size, clearly larger. The limited diffusion to date of compatible players with the Flac.

Compared to a CD, what are the strengths and weaknesses of Flac files?

The strengths compared to a CD are the consistency of the quality of the file encoded in Flac, the CD is influenced by a series of variables, the state of wear of the reading lens, vibrations, humidity of the environment determine an intervention Systems to correct errors that affect listening quality. The Flac file, once carefully encoded, will always offer the same listening quality after listening as it cannot be influenced by the factors mentioned above. Storing a large number of tracks is very easy: portable HDs are small in size and very easy to transport. The same number of tracks stored on CDs would be difficult to handle, especially in the car. The weak point is undoubtedly the ease of use: CD players are widespread in all environments, home.

WMA – Everything about WMA (1)

Windows Media Audio (WMA) is an audio codec (in addition to an audio container format) developed by Microsoft Corporation to end MP3’s hegemony as the standard codec for consumer audio. In fact, the format promised the Same quality as MP3 using only half the bitrate and, in addition, it claimed to achieve CD-Audio quality with a bitrate of only 64Kbps.

Files encoded with this codec and stored in the WMA container have the .wma extension.

It was created in the late 90’s at the Microsoft Signal Processing Center and was initially known as MSAudio 4.0 (released in 1999) and later renamed WMA version 1. Numerous versions followed one another until reaching the current version, version 9. (released in 2003). Today it is one of the most popular because it is the standard format of the Windows Media player (included in the ubiquitous Windows operating system), one of the most popular at the user level. This program allows both the reproduction and the creation of files (only from version 7 of this program) encoded with this format. It is also the standard format for the Zune Portable audio player, the popular competitor to Apple’s even more popular Ipod.

Currently there are 4 different versions of Windows Media Audio:

Windows Media Audio: Currently in its version 9 (released in 2003) it is the best known of the 4 codecs that make up the WMA family. It is a lossy codec that bases the elimination of information from the original signal on psychoacoustics and the “defects” of the human ear (those sounds that are considered inaudible are eliminated in the coding process). If the bitrate is low, a lot of information from the original signal will have to be discarded which can cause the sound of the signal encoded in wma to be different from the original and present some errors.

To implement WMA coding, a sampling rate of up to 48,000Hz is used with two independent stereo channels, variable bitrate (VBR, which assigns a higher bitrate to the more complex sections (transitions from bass to treble faster, sudden volume changes etc)) and the average bitrate technique in which not all sections are transmitted to the same bitrate (as in VBR) but in every second the same information is always transmitted in total (as with bitrate constant) .Thanks to these 2 techniques we will have the same quality throughout the audio file. Both VBR and medium bitrate are only available as of WMA 9.

In addition there is a low delay version (only from WMA 9.1) for bidirectional (Full-duplex) applications such as VoIP.

Like the rest of the audio codecs for music such as MP3, Vorbis, AAC or ATRAC, it is based on the Modified Discrete Cosine Transform (MDCT) to transform the signal from the temporal domain to the frequency one. Finally, the samples are encoded with the Huffman algorithm. In addition, a joint audio technique known as stereo M / S encoding is used (see description) .In addition, when the bitrate is extremely low, sample prediction techniques such as LSP (Line Spectral Pairs) or LSF (Line Spectral Frequencies) are used. .
All these characteristics are reflected in the conclusions of some studies on audio codecs:
For a 32Kbps bitrate the quality is better than that of its direct competitor: Mp3.
For 48kbps bitrate the WMA Pro quality is the second best of all codecs, just behind HE-AAC version 2.
At 64Kbps WMA Pro Bitrate Outperforms HE-AAC in Quality
At a bitrate of 80Kbps and 96Kbps WMA lost in quality compared to HE-AAC, Vorbis and AAC-LC
At 128Kbps the quality of WMA Pro is equal to that of its competitors AAC, MP3 and Vorbis
At 768Kbps bitrate WMA Pro gets spectral response across the spectrum while DTS (Digital Theater Systems) needs twice the bitrate to do it. At these high bitrates, all lossy codecs achieve transparency, that is, a totally perfect quality where the differences from the original signal are imperceptible to the human ear.
For a much more extensive comparison, SoundExpert can be consulted.

Being a format developed by a multinational as powerful as Microsoft, almost all the players allow you to work with WMA, both portable, desktop and computer players, although the ideal WMA environment is to use the Zune portable player and the player for the Windows operating system, Windows Media player (its latest version is 11).

One of the most controversial aspects of the format is that it incorporates DRM (Digital Rights Management), which limits the distribution of copyrighted files encoded with this format.

What is FLAC?

FLAC which is short for Free Lossless Audio Codec is an audio codec developed by the Xiph Foundation. Nonprofit org. It is a lossless audio format, which means it produces digital audio files (with a .flac file extension) that are identical to the original source.

In fact, many users who want to back up their original audio CDs (ripped CDs) choose to use FLAC to preserve sound instead of using a? Lossy format.

Doing this ensures that if the original source is damaged or lost, then a perfect copy can be reproduced using the pre-encoded FLAC files.

Of all the lossless audio formats available, FLAC is perhaps the most popular in use today. In fact, some HD music services now offer tracks in this format for download.

Nowadays, listening to music in high definition is no longer a luxury and has become almost a requirement. There is nothing like hearing a song as the artist decided it should be heard. Due to this, various technologies have been developed that allow us to enjoy Hi-Fi audio. Among them are some audio formats, such as FLAC.

Before explaining what the FLAC format is, you need to understand a technicality:

What is bitrate

It is the bit rate, that is, the amount of bits or data that is processed in a given unit of time.

In the case of audios, the measurement of kilobits per second is normally used. For example, if you see that the music is in 256 Kbps quality, it is understood that there are 256 kilobits of information stored in every second of the song.

Since bitrate talks about a quantity of data, the higher this indicator, the more space the song file will occupy on the hard disk. For this reason, audio compression standards have been developed that reduce storage space, among which is the popular MP3, which you surely know.

But this format, as well as AAC, WMA, among others, by compressing the files, eliminates data that affects the sound quality, not like the FLAC format.

What is the FLAC format

FLAC, which comes from the acronym Free Lossless Audio Codec, is an audio file format that can compress them up to approximately 50% without losing information, thus maintaining the audio quality faithful to the original file.

So, if you are looking to store and preserve your music files in digital format, this format is definitely the best option. In addition, it is free and its code is free, so any hardware or software can implement it.

The best audio format after doing computer tests. Finally the truth is revealed.

We know that when you read the word “listen to music” automatically you think of the old and reliable mp3. However, there are multiple formats with individual characteristics that you should take into account if you want to change your acoustic experience.

As a general rule, audio files are classified into 2 types: those that retain all the quality and those that, in order to save space, eliminate quality. The mp3 is in the second type of files.

Check the Pros and Cons of the different audio formats.

Formats that conserve Quality:

–FLAC: Free Lossless Audio Codec for its acronym in English. One of the formats that best preserves the audio quality. Its compression algorithm is excellent and does not generate quality losses, it is open source and the file size when compressed is much smaller
-A THE C; or Apple Lossless is similar to FLAC, but the files it generates are quite large. It has iOS support
–APE: the problem with this format is that it is not very compatible with the vast majority of players, but it is similar to the FLAC or -ALAC format in terms of audio quality. Being very compressed makes the computer’s processor work faster so it is not recommended in low power computing equipment
–WAV and AIFF: they are not compression formats, but exact copies of the original content, differing in the way they save the data. Both take too much space on the hard drive.

Formats with loss of audio quality:

–MP3: MPEG Audio Layer III or MP3, is the most common format you can find
–ACC: it is more efficient than MP3, the files are smaller and it is very popular in iTunes
–OGG Vorbis: it is a free and open source alternative to MP3 and ACC, it is not restricted by patents. However, it is not supported by different players.
–WMA: Created by Microsoft to be the direct competition of MP3, practically the same as the others.

And what is the best audio format?

Making a cold and mathematical evaluation, it turned out that the FLAC format is the best. It does not lose quality, compresses enough without sacrificing quality. It plays on many players … however it has failed to return almost “universal2 as the mp3 did.

For people who do not need extreme audio quality, the mp3 may well be your best ocpion, since it is all in mp3.

One advantage is that Mp4Gain can normalize both formats and equalize them, change their pitchs, their tempos, etc.

That is, Mp4Gain allows you to manage all these formats, you will choose according to your needs.