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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 best audio format for me?

What is the best audio format for me?

Best Audio File Formats

After all, it’s not always clear which format is best for music. Some services, like Amazon, sell digital music in MP3 format. Although Apple offers song downloads from its iTunes Store in AAC format.

Audio File Formats

So the question arises what formats can your device play. If it is relatively new, it can play lossless formats like FLAC, as well as older lossy formats like MP3 and AAC.

And to add even more confusion, there is the listening factor. How important is sound quality to you?

To help you decide, here are some things you can do.

Check the format compatibility of your portable device

Before deciding on an audio format, the first thing to do is check its compatibility. This can usually be found on the manufacturer’s website or in the specifications section of the user manual (if there is one, of course).

If you are not going to use high quality audiophile equipment in the future, then lossy audio may be sufficient if you are only going to use your laptop. For greater compatibility, the MP3 file format is the safest bet. This is an old algorithm, but it works well. In fact, it is still the most compatible audio format for everyone.

However, if you are ripping tracks from a music CD, for example, it would be wise to keep a lossless copy on your computer / external hard drive and lose it for your laptop as well. This will keep your music safe in the future, even if new formats and hardware show up later.

Consider the bit rate

Bitrate is an important factor to know, especially if you are looking for the best quality music playback. However, the actual bit rate setting depends on the audio format you are using.

For example, the MP3 (MPEG-1 Audio Layer III) format has a bit rate range of 32 to 320 kbps. There are also two encoding methods you can choose from: CBR and VBR. In this case, instead of encoding using the default CBR (constant bit rate) encoding, it is much better to use VBR (variable bit rate) encoding. This is because VBR will provide you with the best file size ratio.

The encoding you use is also an important factor.

Best digital audio formats

Best digital audio formats

Digital Audio Formats

Today, there are several dozen formats (codecs) that are used to represent audio files. Among them, there are no more than a dozen running gear.
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MP3, FLAC, ACC, WAV

In the 20th century, we choose between the media and the media to play music. Cassettes, vinyl, CD – each multimedia format had its own player, each had its own advantages and disadvantages. In the 21st century, the focus has changed significantly. Playback tools have become omnivorous and you have to choose not the multimedia format, but the format of the audio file.

At a time when digital music had not yet penetrated the computer as it does now, the choice for connoisseurs of high-quality sound was quite simple and straightforward. The most popular CDs, and those who could afford to buy more expensive equipment and discs, opted for SACD or DVD-Audio players, or universal models that play all optical audio disc formats. Now you can get high-quality audio content without buying discs, in which case the whole choice comes down to the format for storing your music.

Today, there are several dozen formats (codecs) that are used to represent audio files. Among them, there are no more than a dozen running gear. Lossy audio compression is most often done using the MP3 (MPEG-1 Layer3) codec, less often the WMA format, which is a proprietary Microsoft development, is used for this purpose; AAC, developed by Apple or available under the GPL-free Ogg Vorbis format. We will not dwell on the topic of compressed audio in detail, we will limit ourselves to a brief description.

Saehan Information Systems F10 – The world’s first mp3 player appeared in 1998 and cost $ 250
The MP3 format and its aforementioned analogues allow you to compress CD quality music material into smaller files (the compression ratio ranges from 2: 1 to 11: 1). As the developers envisioned, compression algorithms should process the audio stream in such a way that the sound of the compressed file does not differ from the original. In fact, you can hear the difference between the sound of a compressed file and an uncompressed original, and the higher the quality class of the equipment, the more obvious these differences become. There is no difficulty in burning a CD to MP3 or getting ready-to-use MP3 files from the Internet or on physical media.

The only specificity of compression files is the ability to incorporate copy protection or unauthorized playback protection (DRM) into them. One of the main initiators and distributors of the technology to protect audio files was Apple, which, however, very early presented a proposal to abandon such solutions and urged all manufacturers of music products to distribute it without protection. Since 2009, music sold on the iTunes Store is not protected. The vast majority of compressed content sold over the Internet and on physical media is also not protected against unauthorized reproduction.

ITunes interface
There are several different formats to store digital music without losing quality. The lossless and uncompressed audio stream is saved to a WAV or AIFF file. In this case, the file type is determined by the type of operating system on which the audio stream is saved. WAV format is a joint development of Microsoft and IBM, and AIFF is the brainchild of Apple. There are also proprietary lossless audio compression formats: Microsoft’s WMA Loseless (also known as WMA9) and Apple’s ALAC. Of these, only the second has become widespread due to the fact that it is almost the only way to listen to high-quality audio from iOS devices.

Another option for storing uncompressed audio content is disc images, which are a single file with the ISO extension, which is an unmodified copy of the content on a digital medium.

The most widely used lossless music compression format is the FLAC (Free Lossless Audio Codec) format. As its name suggests, this format is distributed under a free license, which means that to ensure its support on any audio device, it is not necessary to pay royalties. FLAC allows you to store audio tracks with up to eight channels and a bit depth of up to 32 bits and a virtually unlimited sample rate, allowing it to be used to store any content, including multi-channel HD soundtracks. The popularity of FLAC as a high quality audio compression codec is as great as the popularity of MP3 among compression audio formats. The vast majority of high-quality music is stored and distributed in the FLAC format.

What are the digital audio formats?

PCM, Wav, Aiff. Compression. Mp3, Ogg, Wma.

Working with digital audio is almost a chore for puzzle specialists. Since audio is saved on the computer and all computer files have extensions, we have to interpret each acronym and abbreviation.

The extension is the end of the file after the name and period. It is used to know what type of file it is, whether it is a text, a video or an audio. There are many extensions and they are all sure to sound familiar to you: WAV, RM, MP3, WMA, OGG … Let’s play, then, to decipher puzzles and see what each of these acronyms means.

UNCOMPRESSED DIGITAL AUDIO FILES

.PCM

It is not a file type or format, but a technique of transforming analog to digital audio without any compression. (1) Therefore, we do not see audios with the pcm extension. We work with PCM when digitizing, but we always keep files with one of these extensions:

.WAV: (Wave, wave in English)

It is the most widely used uncompressed digital audio format. It belongs to Microsoft / IBM.

.AIFF: (Audio Interchange File Format)

It is similar to WAV but for Apple Macintosh or MAC computers.

.CDA

: These are the audio tracks recorded on Compact Disc that also use the PCM system.

All uncompressed files are large. Approximately 10 megabytes for every minute of audio. These are the formats used to store audio at a professional level since the quality is very good. But when we don’t need that much quality and we’re short on space, it’s time to use file compression.

AUDIO COMPRESSION

Compressing is reducing and whenever we reduce we lose something. The same is true for digital audio. The latest advances have allowed compression to be done with the least possible loss of quality, but there always are. Against that, much has been gained in reducing the size of the files.

While a 4-minute audio in WAV format takes approximately 40 megabytes, that same audio, compressed to MP3, can reduce its weight to 4 megabytes, 10 times less. And apparently, they sound the same. (2)

SAVE WITHOUT COMPRESSING

When working in production, it is always recorded in WAV, without compression. In that same way it is edited and mixed. If the final result of the edition is an audio to be uploaded on the Web or saved on the hard drive of a computer, we can compress it to mp3 but with a quality of no less than 160 kbps.

If, on the contrary, the production has as its final destination to be recorded on a CD, never compress, always leave the audio in WAV and burn it that way on the CD.

1. How does compression work?

It is not about wrinkling or crushing the audio. Most audio compression systems take advantage of a “defect” in our ears to reduce file size. It is called masking.

Masking is a property of the human ear that prevents it from distinguishing two frequencies close together within the same range, one masking the other. For example, if a sound with a frequency of 12 Khz and another of 12.2 Khz sounds at the same time in a song, we could remove one of the two without being noticed when listening to it.

In this way, the compressor “subtracts” the masked frequencies, which reduces the number of bytes. And fewer bytes in computing translates into smaller files, but not shorter. The song, when compressed, lasts as long as it is uncompressed.

2. Quality of compressed files

We saw in the previous question that digital audio has two parameters: the sampling frequency (the optimum is 44.1 Khz.) And the resolution or size of each sample (8 or 16 bits). By compressing, we add a third parameter to these two, the bitrate. It is the amount of kilobytes per second (kbps) and refers to the quality of the compression.

• A lower number of Kbps, more compression, smaller file size, but lower quality.

• A higher number of Kbps, less compression, larger file size and more quality.

A compressed audio at 128 Kbps has a higher compression level than a 256 Kbps one. That means that 128 is a smaller file and less quality than 256. Although you must have a cat’s ear to distinguish between both!

VARIABLE OR CONSTANT BIT

Some files have a constant bit rate per second (CBR Constant Bit Rate) and others have a variable one (VBR Variable Bit Rate). The constant is always the same for all audio, for example 128 kilobytes per second. In the variable method, what the compressor does is use more bits when there are parts of the audio where there are more frequencies and it cannot mask all of them.

COMPRESSED FILE FORMATS

Mp3 (MPEG-1 Audio Layer 3)

It achieves high compressions without much loss, although it all depends on the quality of the compression we use. 128 Kbps and below is not recommended.

Although mp3 is the most widely used compression standard, especially for audio on Web pages, the great drawback is its patent. So any player or editing software that wants to use it has to pay for it.

.OGG (Vorbis)

As a result of this patent, the Xiph.org Foundation developed in 2002 a completely free codec (5) for audio compression. Similar in characteristics to mp3, it is beginning to be used a lot on the Web and in some players since manufacturers do not have to pay the costs of the patent. At this point, it is difficult to completely replace the mp3 but it is eating up a lot of ground.

.AAC (Advanced Audio Coding)

The compression level is higher than mp3 (MPEG-1) without major loss of quality. AAC is one of the codecs used in the new MPEG-4 compression standard. This audio format is used in players like the iPod and in some of the new digital radio systems. AAC is shaping up to be the successor to the mp3.

.RAM (also RM or RA)

They are the files of the Real Network company for audio. The problem is that its reproduction and edition is very limited to software from the same company and few others.

.WMA (Windows Media Audio)

It is Windows’ bet on compressed formats. It is like a WAV, but smaller and less quality. While mp3 and ogg files are played by almost all players and editors, the same is not the case with wma files, so it is rarely used.

. AA3 (ATRAC – Adaptive Transform Acoustic Coding)

Format invented by Sony. It is the one used by minidisc recorder-players.