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THE MOST COMMON FORMATS FOR MUSIC AND OTHER AUDIO FILES, AND HOW THEY ARE RELATED TO EACH OTHER

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THE MOST COMMON FORMATS FOR MUSIC AND OTHER AUDIO FILES, AND HOW THEY ARE RELATED TO EACH OTHER

And for the direct competitors of the universal MP3 format, they can count on a lot today.

Due to continuing inconsistencies in home storage of the WAV format, it was eventually discontinued. But for professional studios, he says, the basics of the job. Especially when recording live vocals or instruments. Just convert the recorded material from WAV to MP3 at the final stage.

music format

However, music can be represented in some other popular formats nowadays. For example, many times (especially the Internet) they use these data types like OGG, AIFF, AMR, etc. But the real competitor of MP3 has become the newest and best audio FLAC etc. Of course, for MP3 you can convert all parameters to the maximum, but the playback quality of FLAC represents much higher. Also, it is a single file and the separation occurs directly on the track due to the player or startup software. In other words, listeners see each track individually, but can switch between playback tracks. For the MP3 format, this also seems possible to merge multiple tracks through it, thus creating a single file. But here it is in this version fast switching between tracks will not be possible (normal fast forward should be used, that’s all).

However, not everything is bad. The fact that music or audiobooks are all popular formats today allows them to be easily converted, even keeping the original parameters of the audio material. Based on this, and for sound processing and conversion and audio editors, almost all programs call converters. Any program of this type (MP3 editor or converter) detects the original and final type of audio files, is unambiguous and can produce direct and reverse transformations. Let’s explain this specific example.

WAVE THEORY AUDIO EDITOR FOR MP3 FILES
Many types of software are used in audio processing today. First, look at the narrow application of so-called audio editors. The most prominent representatives of these can be called giants Sony Audio Forge, Sintrillium Cool Editing Pro, which was later acquired by Adobe and renamed Audition, Acoustica Mixcraft, ACID Pro and many others.

mp3 editor

The principle on which they operate is that, for convenience, all MP3 audio programs have a typical waveform, as originally used for WAV files. This method determines the appearance and opportunity enough to edit any type of conventional audio material in WAV format. Other than that, the fact that you can do basic copy, cut, paste, etc. E., it’s just a matter of getting the frequency characteristics and bitrate changes, not to mention using a lot of extra effects that plug into VSTs via DirectX or a generic host bridge studio thing.

In its simplest form, the conversion can be done using the standard file menu, which contains the line “Save As…” (Save As…) or the export function present in MP3 format. Thus, all the process is reduced to just the final selection of the format (MP3 here as an example) and activation of the recording mode. In this case the conversion will be done automatically saving the current configuration parameters and the frequency characteristics. I don’t like the original version? ?Nothing is easier than changing the format to MP3, pre-specified with higher settings. However, one thing needs to be considered here: if the raw material is of such poor quality that special remediation or even professional tools will not work for audio it is necessary to use Repairs here, the intervention of various filters, etc. D. For the layman, it will cause great difficulties.

As is clear, there is absolutely no difference between the audiobooks we are dealing with: MP3, music or just recorded voice or noise. By the way, audiobooks are supposed to have a much lower sound quality by default. This is understandable, since the file has to take up minimal space and, in general, the perceived sound characteristics of speech are not that important. Finally, is this a professional recording of a particular set of albums?

However, if you use some standard operations, even without specific knowledge, it’s fine to achieve good results, especially since there are such built-in templates, based on any application for specific operations. Of course, it will be very difficult for the first time to achieve a perfect sound, but if you study the plan and understand how it works, it will work like clockwork, and as a result, it will take a lot of time.

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What is the difference between lossless sound quality and normal sound quality?

When downloading music, we often see these options: lossless sound quality and normal sound quality, lossless sound quality requires members to download, otherwise only normal sound quality can be downloaded.

Since it is a fee, the lossless sound quality must be higher than the normal sound quality, so what are the differences between them?

Commonly seen MP3, WMA, OGG are called lossy compression. As the name suggests, lossy compression is to reduce the audio sample rate and bit rate, and the output audio file will be smaller than the original file, which is normal sound quality. we often see.

Common MP3, WMA and other formats occupy about 1M-5M of space for single-handed songs, while for music in lossless formats such as ape and flac, the space occupied by a single song can generally reach tens of megabytes, or even more than 100M.

Bit rate (Kbps) refers to the transmission rate of digital signals, that is, how many thousands of bits of information are transmitted per second (K means thousands of bits, Kb means how many thousands of bits). For music, theoretically this The higher the value, the better the sound quality. Ordinary music, such as WMA, is generally 128kbps music, MP3 is mostly 128 or 192 or 320kbps/, while the bit rate of lossless music generally reaches 800-900kbps, and traditional CD even reaches 1411 Kbps. Using lossless compression, the sound quality is the most perfect.

The feature of lossless music is that regardless of whether there is sound between the beats, its data always flows smoothly, so the fast magnetic vibration in your headphones is stable, and the sound is natural and real; while lossy formats such as MP3 are due to the loss of people The ear can not hear part of the data, so the magnetic block in the earphone vibrates unnaturally, causing it to vibrate when there is sound, and do not vibrate when there is no sound, so the magnet block vibrates excessively and unstable, which will produce burr noise. If professional equipment is used, it is easy to hear right and wrong.

Of course, whether you can hear the difference depends on the person, and there are differences in everyone’s speech recognition ability. Some professionals and people with sensitive hearing will find the difference, but for most common listeners, in fact, there is no difference between normal MP3 and FLAC lossless sound quality, and the effect is similar.

Lossless audio formats

Lossless audio formats

Lossless audio

Audio files can be converted in a more or less space saving way using lossless or lossy codecs. While the data reduction is absolutely true to the original with lossless codecs, a difference can be heard from the original material, especially with heavy compression with lossy codecs.

Lossless compressed audio files lose approximately 25% to 50% of their original file size. Typical representatives are Monkey’s Audio, FLAC, or WavPack. Modern lossy codecs like AAC, Ogg Vorbis, or MP3, on the other hand, reduce source material by 90% without sounding noticeably worse.

Lossless audio compression

Unlike documents or images, for example, audio files are very difficult to compress, since identical repetitions are very rare in music. But it is precisely on such occurrences that the Huffmann or Lempel-Ziv algorithms depend, which are used in ZIP or RAR, for example. Therefore, most non-clustered compressors employ predictive coding. The signal is divided into a music component and a noise component. Depending on how well this prediction has been made, the noise component should ideally be Gaussian white noise that can be easily compressed using conventional methods.
In the ideal case, the result is 50% compression, which is highly dependent on the piece of music.

Monkey’s Audio, FLAC and WavPack are popular formats for lossless compression of WAV (PCM) files, for example digitized original recordings from the recording studio (for archiving or later processing) or archiving copies of music CDs. The sound quality is always the same as the original and the checksums reveal corrupted files. Increasing hard drive capacity at affordable prices makes “Lossless Codecs” interesting for everyday use.

Uncompressed: WAV (PCM)

WAV is the largest common denominator of Windows audio formats. The Macintosh equivalent is called AIFF. WAV is actually the collective term for various subformats, of which PCM is the most common and is generally equated with WAV.

WAV (PCM) is an uncompressed recording of sound samples: the time signal of a noise is sampled, quantized, digitized, and saved at discrete points in time. The more often and finer you record these values, the better the sound. With CD quality music, this instantaneous value is recorded 44,100 times per second and recorded with 16-bit “precision”, that is, 2 ^ 16 = 65536 possible values.

With the help of special programs (eg CDex, EAC, Audiograbber), Audio CDs can be transferred to the hard disk as WAV (PCM) files. Viewed in this way, WAV (PCM) files are copies of the original, provided the CD-ROM drive is not read incorrectly or the CD is damaged. One minute at CD quality requires roughly 10MB of storage space, which is not as happy to give away even in the age of ever-larger hard drives.

On the PC, WAV (PCM) and CD-quality (44.1 kHz, 16-bit, stereo) audio files are often the starting material for creating space-saving audio files in formats such as MP3. However, for sound processing on the home PC, WAV (PCM) is the first choice.

Monkey’s Audio

Monkey’s Audio is a lossless audio codec for PCM wave files. Monkey’s Audio comes with a convenient program interface (in English), over which files can be compressed, decompressed, verified or tagged. PCM wave files (any sample rate, 8/16/24 bit, mono or stereo) or corresponding Shorten or WavPack files are accepted as source files. Monkey’s Audio does not support multiple channels.

The APE tags that are used to store the title information can be supplemented with their own fields and are therefore very flexible. They are now used in conjunction with other audio formats as well.

The included command line encoder allows integration into other programs. Various audio players support the format through plugins. A plug-in for Winamp can be installed at the same time as installation. Monkey’s Audio is a Windows program by default. However, there is a platform independent version of Java.

FLAC

FLAC stands for “Free Lossless Audio Codec”. There are several lossless audio codecs available. FLAC is suitable here for several reasons: FLAC follows the open source philosophy (free open source code, available for many operating systems), works very fast, has a good and secure framework structure.

Music quality of files (lossless and lossy)

Music files can be the product of the perfect extraction of the music contained in CDs, called bit by bit. With this phrase we immediately clear the field of feeding unjustified prejudices towards the archives. The files are not of the same quality as CDs when using lossy formats: MP3, AAC, M4A. Besides these, there are formats that do not use any type of compression: WAV and AIF, which are the exact copy of the songs stored on CDs or even the original master recording format used to create CDs. Or there are formats that even using compression are “lossless”, called lossless: the most widespread of them is the FLAC format, not surprisingly adopted as a standard in the distribution of content in CD quality or higher. The FLAC format uses a type of compression that does not remove the original data. When unzipped, FLAC files have exactly the same bits that were present before compression.

Lossy - Lossless

Before there are misunderstandings about the relationship between lossy and lossless files, we specified that if you have an MP3 file and convert it to FLAC, the data removed from MP3 transformation will not magically appear again. No conversion can regenerate the lost data into a lossy file. You can convert FLAC files to WAV or AIF because the compression used was lossless.

Lossy and lOOSLESS

The FLAC format also has advantages over WAV and AIF, the applied compression reduces its size and saves storage space and data bandwidth in reception / transmission when transmitting over the network. Besides this function, FLAC has another advantage over WAV, the information describing the tracks and the cover image can be inserted into the files. The information inserted in the files is called TAGs, the FLAC format provides for the insertion of this information that software applications and APPs read to recognize the content of the audio tracks. This simplifies the management of music collections, which without TAGs would present indistinguishable lists of audio files. Unfortunately, the standard WAV format does not allow the inclusion of TAGS in files.

Let’s continue the discussion on the playback chain of a portable Hi-Fi system. The technical quality of the content to be reproduced affects the final quality of the reproduction.

After adopting quality headphones, it would be wise to switch to lossless audio formats, to at least benefit from the original quality found on CDs.

Lossless music

Most of the sites that sell music online offer it in lossy formats, so the problem is how to get music without loss. Anyone with a CD can start by ripping them. Ripping is the term used to describe the transformation of the tracks contained in a CD into files. Anyone who wants to delve into the subject can read the writings dedicated to Ripping and the creation and management of music collections: What software for ripping and Creation and management of music files luquida.

In addition to CD ripping, there are websites that sell lossless music online in CD quality and Master Quality (Hi-Res), the latter is superior to CD and in many cases coincides with the original recording made in the Recording Studio.

High Resolution Music (HRA) has higher technical specifications than expected for CDs. Resolution ranges from 16 bit to 20/24 bit and sampling from 44.1 kHz to 48 / 88.2 / 96 / 176.4 / 192 kHz. For a description of the processes and characteristics of digitization, read the following text: The digitization of sound. With respect to these specifications we believe that the determining factor is the 24-bit resolution combined with sampling performed at least at 48 kHz.

Speaking of MP3 files, we usually refer to the bit rate, which with this format does not exceed 320 Kbps. The bit rate indicates the bits per second transmitted in a music stream. It is quite evident that a music stream consisting of more bits will contain more audio data. To orient yourself between these parameters, it is good to bear in mind that an uncompressed CD quality audio stream (16 bit 44.1 kHz) is 1,411 Kbps, converted to FLAC the stream will decrease between 30 and 50% of the format’s bit rate. uncompressed. Therefore, the CD quality stream generated by a FLAC will vary approximately between 705 and 988 Kbps. Obviously for high resolution formats the data stream will be proportionally higher depending on the specifications offered by the individual files.

The technical quality of the content to be reproduced as well as the reproduction devices are essential complements to obtain the best sound result.

MP3 audio files and lossless files, which one is the best?

For your music collection, is an mp3 audio file or a lossless file better? Let’s see together the differences and which format to choose

Lossy Compression vs Lossless Compression

In the transition from analog music (vinyl records, cassette tapes and other similar media) to digital music (audio CDs, mp3 audio files, etc.) a few decades ago, compression algorithms have played a fundamental role. to say the least. To avoid taking up too much space on the data storage media (when the transition was launched, every available byte of space was worth as much as gold) it was necessary to develop algorithms that would help compress the size of the files without affecting the quality of the file too much. Audio .

Lossless vs Lossy compression

It was during these years that names like mp3 audio files, WMA files, WaV files, and OGG files began to circulate quite frequently in musical (and non-musical) circles around the world.

Losseless vs Lossy

Over the years, the panorama of audio formats expanded dramatically and we witness the curious formation of two opposing blocks. On one side, in fact, so-called lossless files were ‘stacked’ (literally lossless), while on the other side of the musical ‘iron curtain’ were lossy files (literally lossy). As the names suggest, the distinction between one format and another is given by the possible loss of musical information.

Lossless files guarantee (and guarantee) the same depth of sound and quality of an audio CD, while lossy files (like mp3 audio files) allow you to reduce the size of a music track in the order of 10 times in partial detriment of audio quality. For example, if a lossless file takes up 40 megabytes of space, an mp3 audio file of the same song will take up just over 4 megabytes.

The bitrate

What makes the difference between the two audio file formats is the bit rate used in the analog-to-digital conversion process. When we speak of bit rate (sometimes also written bit rate) we refer to the number of bits that we can process in the unit of time. In music, the bit rate measures the amount of data contained in each second of the audio track: the higher the value of the bit rate, the better the quality of the music.

For an mp3 audio file, this value can range from 32 kbps (kilobits per second) to 320 kbps. In a lossless file, however, there is no compression, and with a bit rate of around 1,411 kbps, the audio quality is comparable to that of an audio CD. According to the numbers, therefore, lossless files are better than mp3 audio files, ensuring deeper sound that is true to the original. However, as experience teaches us, numbers are not always everything.

Diluted differences

The reality of the events seems to be quite different. The human ear, in fact, would not be so sensitive as to be able to notice differences between an mp3 audio file of excellent quality (with a 320 kbps bit rate) and a lossless file.

To understand this, simply run one or more ABX tests. One such test consists of cross-comparing two known files (named A and B) and two unknown files (X and Y, which are the same as A and B but with different bit rates). At the end of the test, two pairs of files should be formed, matching the originals with their modified files. If you use an mp3 audio file with a high bit rate (320 kbps or slightly lower), even the most musically trained ear will not be able to tell the difference.

Despite this, a music file made up of lossless files still guarantees a substantial advantage over a file made up of mp3 audio files. The first, in fact, can be converted to other audio formats without losing quality; Any conversion of a lossy file, on the other hand, will cause further loss of music information and deterioration in audio quality.

Lossless audio formats

WAV (.wav) The WAV format is nothing more than a digital recording of real sounds, sounds that come from a source outside the PC. With WAV music, drums, piano, guitar, bass or vocals are heard the same, no matter what computer the file is played on (with the same acoustic quality of hardware components, of course).

DSD (DFF, .Dsf) are used in digital media such as Super Audio CDs. Sampling quality is very high (variable sampling rate is approximately 64 times higher than for audio CDs), although according to several operators in this sector, it must be absolutely determined whether the final quality is higher than the sampling quality. PCM (used in high quality Blu-Ray and DVD Audio). I can reproduce free readers like Foobar 2000 or AIMP on our computer.

AIFF (.aif). It’s the Apple audio format used by Apple for Mac. It’s basically the WAV equivalent used by Windows.

APE (Mono Audio; .ape): Ordinary with a loss that allows us to reduce by about 50% the space occupied by our music (in some cases even more), without losing quality. In this way, an album that takes up about 600 MB in wav format averages 300 MB (much more than about 100 MB of high-speed mpc and 60 mp3 mp3, but the quality is the same as the original); On average, I speak because there are certain types of music where the level of compression is even higher. You can use WinAmp plug-ins to listen to songs in this format, or better yet, a player that uses it natively as Foobar 2000. Right now, it’s probably the best lossless codec, considering the balance between speed and compression (Click here for a lossless comparison table) format.)

Apple Lossless Audio Codec – ALAC (.m4a) This is a lossless audio codec created by Apple a few years ago and available as an open source from Apple since October 2011. Some programs support it in Windows (encoded). , including DbPowerAmp.

FLAC (.flac): a very popular open source format. It used to be very popular (among music purists), but some space has been lost with the MonkeyAudio bee format, which allows for better compression in the same quality. Compared to others, it always came in .ape format (but also after WavPack).

LA (Lossless Audio: .la): The lossless format that compresses the most. Conversion to this format is very slow, but achieves the best compression in history (for example, MonkeyAudio, this album would take up about 290 MB compared to 300 MB in APE). This is not widespread, as some MB obtained on a bee is not worth the long wait (and less support from third-party programs), but it is the winner of my lossless format comparison.

OPTIM FROG (.ofr) – Excellent lossless codec, best after LA as compressibility. Compression, when set to slightly high levels, is about 3 times slower than Monkey Audio and the gain in MB is about 2%. Like all other formats on this site, you can listen without the addition of Foobar 2000.

WAVPACK (.wv, wvc) – is a valid open source compression format that allows lossless, lossy and hybrid results. The compression rate is high and the compression is good. Another interesting hybrid format is that the lossy file is merged with another file, which allows you to completely restore the original file without loss in case we want to restore it.

What are the most popular audio formats?

There are dozens of audio files that we can use to convert a song, but the really useful ones can be counted on the fingers of one hand.

When we think of an audio file, most of us immediately think of MP3. Without a doubt, it’s one of the most popular audio formats, but it’s not the only one. Let’s see what are the most popular audio formats and what are the differences in use. And we have to choose that according to our needs.

There are different categories of audio files. First we defined the formats as uncompressed. The word itself defines this section of the file. In this case, the recorded sound waves are actually converted into a digital format without further processing. What does it all mean? In files that are very difficult to save and take up a lot of space. In order to simplify the storage of audio files and to reduce the load, formats with lossy data compression were created. These sacrifice some quality in favor of the small storage space required.

To fix this error, which represents the loss of quality in favor of file size, compressed audio formats were created without loss of data. Obviously, they’re not small files like lossy compression, but they’re still smaller than uncompressed. However, it must be said that these types of formats are only widespread in certain cases.

PCM

PCM is the most common and widely used audio format on CDs and DVDs that we have at home. It is the faithful conversion of analog audio into a digital file. It is no coincidence that it is an uncompressed audio format. Remember that analog sounds exist as waveforms. In order to convert a sound wave into digital bits, the sound must be sampled and recorded at certain intervals.

WAV

WAV stands for Waveform Audio File Format (previously it was also called Audio for Windows, now it is no longer). It is a standard developed by Microsoft and IBM in 1991. WAV files can contain compressed and uncompressed audio formats. In most cases, however, they are used for uncompressed people. Although it was developed for Windows, it can also be safely opened on a Mac.

MP3

This is without a doubt the most popular audio format. It was released in 1993 and over the years its success has increased thanks to the combination with the pieces of music. Why are they used so often? Quite simply, these are lossy compressed files, and the generated files are so small that users can create a music library without taking up too much space. And the quality? It is much lower than other formats, but the human ear doesn’t always manage to notice the difference significantly. MP3 is also a universal file. It can be found on smartphones, computers, smart TVs, tablets and many other electronic devices.

WMA

WMA stands for Windows Media Audio. It was first published in 1999 and has gone through several developments since then, always keeping the same name. As you can easily guess, it is an audio format created by Microsoft. It was developed to replace MP3s. Unfortunately, there are very few platforms that support this, so the MP3 mastery has never been compromised.

OGG

OGG is not a real compression audio format. We can define it as a multi-purpose multimedia container. It can contain all types of audio formats, but is often used to contain Vorbis files. It is one of the best performing files to reduce size without losing quality.

FLAC

FLAC stands for Free Codec Lossless Audio. It is a lossless, compressed format that was created in 2001. A FLAC file can be compressed to 60% of its original size without minimal loss of sound quality. It is also an open source format. Because of this, it is compatible with most programs and devices. It is the best quality alternative to MP3.