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Audio files, which is better?

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Audio files, which is better?

Audio file formats

There are various types of audio files on the market today, and even though we are all familiar with MP3, what about AAC, FLAC, OGG or WMA?

Audio file formats

Audio File Format: AIFF

AIFF stands for Audio Interchange File Format. Just like Microsoft and IBM developed WAV for Windows, AIFF is an audio file format developed by Apple in 1988 for Mac systems.

Like WAV files, AIFF files can contain a variety of audio formats. For example, GarageBand and Logic Audio use a compressed version called AIFF-C and another called Apple Loops. They all use the same AIFF extension.

Most AIFF files contain uncompressed audio in the PCM format. AIFF files are simply wrappers around the PCM encoding to make them more suitable for use on Mac systems. However, Windows systems can usually open AIFF files without any problems.

Lossy Compressed Audio Format
Lossy compression is when some data is lost during the compression process, compression is important because uncompressed audio can take up a lot of disk space.

In other words, lossy compression means sacrificing sound quality and audio fidelity for smaller file sizes. Done wrong, you’ll hear artifacts and other strange sounds in the audio. But when done right, you won’t notice the difference.

Audio File Format: MP3

MP3 stands for MPEG-1 Audio Layer 3. Released in 1993, it exploded in popularity and eventually became the most popular audio format for music files in the world. There’s a reason we have “MP3 players” instead of “OGG players”!

MP3 has three main purposes:

1. Delete all sound data that exists outside the hearing range of normal people.
2. Reduce the quality of sounds that are not easily heard.
3. Compress all other audio data as efficiently as possible.

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Audio files, which is better?

There are various types of audio files on the market today, and even though we are all familiar with MP3, what about AAC, FLAC, OGG or WMA?

Why are there so many audio standards? Is there a better audio format? Which ones are important and which ones can be ignored? This is pretty straightforward once you realize that all audio formats fall into three broad categories. If you know what the categories mean, you can choose the format within the categories that best suits your needs. Today 2T will take you familiar with ten common audio file formats.

uncompressed audio format
Uncompressed audio consists of actual sound waves that have been captured and converted to a digital format without any additional processing. So uncompressed audio files tend to be the most accurate, but they take up a lot of disk space, around 34MB per minute for 24-bit 96KHz stereo.

Audio File Format: PCM

PCM stands for pulse code modulation, a digital representation of the original analog audio signal. Analog sounds exist as waveforms. To convert a waveform to digital bits, the sound must be sampled and recorded at specific intervals (or pulses).

This digital audio format has a “sample rate” (how often the samples are taken) and a “bit depth” (how many bits are used to represent each sample). There is no compression involved. A digital recording is an almost exact representation of an analog sound.

PCM is the most widely used audio format on CDs and DVDs. There is a subtype of PCM called linear pulse code modulation, where samples are taken at linear intervals. LPCM is the most common form of PCM, which is why the two terms are pretty much interchangeable at this point.

Audio File Format: WAV

WAV stands for Waveform Audio File Format (also known as Windows Audio at some point). This is a standard established in 1991 by Microsoft and IBM.

Many people think that all WAV files are uncompressed audio files, but this is not the case. WAV is a Windows container for different audio formats. This means that WAV files can contain compressed audio, but they are rarely used for this purpose.

Most WAV files contain uncompressed audio in the PCM format. WAV files are simply wrappers around the PCM encoding to make them more suitable for use on Windows systems. However, Mac systems can usually open WAV files without any problem.

FLAC audio format

Lossless compression: Encoded audio data (PCM) is lossless, and the decoded output audio is the same as each byte of the encoder input.

Each data frame has a 16-bit CRC check code of the current frame, which is used to control data transmission errors. For the entire piece of audio data, there is also an MD5 mark for the original uncompressed audio data in the file header, which is used to verify the data during decoding and testing. When the computer plays WAV files, it sends the PCM data in the WAV files directly to the sound card, whereas when the computer plays FLAC, it must first decode FLAC into PCM data and then send it to the sound card. It is an additional decryption link, like decompressing a RAR file. Your PCM data is no different from WAV before compression.
Fast: FLAC pays more attention to decoding speed. Decoding requires only integer operations and requires very little computational speed compared to most encoding methods. Real-time decoding can be easily implemented on very common hardware.
Hardware support: Since FLAC provides free decoding examples and decoding complexity is low, as of 2012 FLAC is the only lossless compression encoding that has received wide and good hardware support.
It can be used to stream media: each FLAC data frame contains all the information needed for decoding. The current frame is decoded without reference to previous or subsequent data frames. FLAC uses a synchronization code and CRC (similar to encoding formats such as MPEG), so the decoder can experience minimal time delay when jumping in the data stream.
Positionable: FLAC supports fast sampling and precise positioning. This is not only good for playback, but also makes FLAC files easy to edit.
Flexible metadata: New types of metadata data blocks can be defined and implemented without affecting the use of legacy decoders and data streams. Existing metadata types include tags, reference tables, and positioning tables. Registered applications can define their own dedicated metadata types (Note: this is similar to standard MIDI).
Ideal for Archival Applications: FLAC is an open encoding format, and without any data loss, you can convert it to any other format you need. In addition to CRC and MD5 marking of each data frame to ensure data integrity, flac (annotation: the command-line encoding tool provided by the FLAC project) also provides a verification (verification) option, when use this option to encode, while encoding will immediately decode the encoded data and compare it with the original input data. Once it finds a difference, it will go out and give an alarm.
Easy to back up CDs: FLAC has a “CUE table” metadata data block to store the CD’s table of contents and index points for all tracks. You can save a CD as a single file and import the CD reference table, so that a FLAC file can fully record all the information of the entire CD, that is, you can embed the CUE file that is usually stored separately. in FLAC in the file. When your original CD is damaged, you can use this file to restore a copy of the CD that is exactly the same as the original.
Anti-corruption: Due to the frame structure of FLAC, once the data stream is damaged, the loss will be limited to the damaged data frame. Usually only a very short snippet will be lost. When many other lossless audio compression formats suffer corruption, a corruption will cause all subsequent data to be lost.

FLAC audio format

Analyzing the difference edit transmission
FLAC is different from MP3.

MP3 is a lossy audio compression code, but FLAC is lossless compression, which means that the audio will not lose any information after being compressed with the FLAC code. After restoring the FLAC file to a WAV file, the content of the WAV file before compression itself. This compression is similar to ZIP, but the compression rate of FLAC is higher than ZIP and RAR, because FLAC is a compression method specially designed for PCM audio characteristics. And you can use the player to play FLAC compressed files directly, just like you usually play MP3 files (there are already many FLAC-compatible car players and home audio equipment, and you can find links to these equipment manufacturers on the website of FLAC).
FLAC
FLAC
FLAC is free and is compatible with most operating systems, including Windows, systems built on Unix-like kernels ( Linux , BSD , Solaris, IRIX, AIX, etc.), BeOS, OS/2, Amiga. And FLAC provides a compilation system in autotools, MSVC, Watcom C and Project Builder development tools.
Now all the major websites have FLAC music downloads, publishers usually take the .
Lossless format combined with good headphone effect is very good.
projectedit transmission
Streaming format FLAC
Reference encoders and decoders provided as libraries;
flac, a command line program that can encode and decode FLAC files;
metaflac, a metadata editor for FLAC files that works from the command line.
FLAC input plugin for different audio players
FLAC
FLAC
When we say “FLAC is free” we don’t just mean that you can get it for free. More importantly, the FLAC file format is completely open to the public and you can use it for any purpose (FLAC project only reserves the right to maintain the FLAC format specification and confirm compatibility features), the FLAC file format, and the encoding/decoding implementation. They are not subject to any known patents. Also, all source code is available under an open source license.
Development history edit stream
The FLAC project was started in 2000 by Josh Coalson. The FLAC bitstream format was frozen when it entered beta phase and when reference implementation version 0.5 was released on January 15, 2001.
In June 2001, FLAC released version 1.0.
FLAC

On January 29, 2003, the “Xiph. Org” foundation and the FLAC project announced that FLAC has become an independent company banner under “Xiph. Org”. In addition, “Xiph. Org” also provides support for many free compression formats. Like Vorbis, Theora, Speex, etc.
On September 17, 2007, FLAC released version 1.2.1.
June 1, 2013 First update in six years, from v1.2 to v1.3. Major changes include: support for RF64 and Wave64 formats, support for ReplayGain for audio sample rates up to 192 kHz, and more.

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 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.