10 Common Audio Formats: Which Format Should I Choose?


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10 Common Audio Formats: Which Format Should I Choose?

Audio Formats
Audio Formats

Audio files come in various formats and sizes, in addition to our common MP3, there are AAC, FLAC, OGG, WMA, etc.

Audio Formats
Audio Formats

Why are there so many different audio standards? What format is the best? What should you choose when saving audio files?

In fact, all audio formats can be divided into 3 categories, and once you understand the characteristics of each of these 3 types, you can choose one of the three, and then choose a further subdivided category according to your specific needs.

Comparison of audio formats – operation, equipment – Introduction to 10 common audio formats: which format should I choose?
uncompressed audio format
The uncompressed format preserves the original audio waveform. The so-called original audio waveform refers to the result after the sound is captured and converted to a digital signal for storage. Raw audio waveforms are stored without any post processing. From the results, such an audio file will consume a lot of space. For 24-bit (24-bit) 96 KHz audio, you need about 34 MB of storage space per minute.

Uncompressed audio format: PCM
PCM is short for Pulse-Code Modulation, which is a technical method of simulating sound using digital signals. The sounds that we can hear in nature exist in the form of physical sound waves, and in order to simulate this sound wave with a digital signal, scientists decided to sample it and record it with another wave, which is what we call a pulse.

Therefore, digital audio has two basic concepts: sample rate and bit depth. The so-called sampling rate refers to the speed of how many times the sound is sampled. The so-called bit depth refers to the space occupied by a single sample. In uncompressed formats, the product of the sample rate, bit depth, and audio duration is the space occupied by the digital signal that represents the audio content.

PCM is a format commonly used on CDs and DVDs, but its derivative LPCM is often used in practice. LPCM is short for Linear PCM, which is Linear Pulse Code Modulation. Most PCM files in use today are actually LPCM files, so there is no need to differentiate between them.

Uncompressed audio format: WAV
WAV is short for Waveform Audio File Format, which is a standard audio format developed by Microsoft and IBM in 1991.

Many people think that WAV is an uncompressed audio format, but this is not entirely true. In fact, WAV is a “wrapper” type format, a common format developed by Microsoft to use audio for various platforms. So it is possible for WAV to contain compressed audio, but this is rarely the format of choice when using compression these days.


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What are the common audio formats?

What are the common audio formats?

common audio formats
common audio formats

Most frequent and popular sound formats

common audio formats
common audio formats

05 AAC format

AAC is actually short for Advanced Audio Coding. The algorithm adopted by AAC is different from that of MP3. AAC improves encoding efficiency by combining other features. The AAC audio algorithm far surpasses some previous compression algorithms (such as MP3, etc.) in terms of compression capabilities. In conclusion, AAC can provide better sound quality with 30% smaller file size than MP3 files.

It is one of the best lossy formats out there. There are multiple encodings, with bit rates up to 448 kbps. In terms of hardware support, advanced mobile phones and mp3 players are now generally supported.

06 VQF format

The VQF format is an audio compression technology jointly developed by YAMAHA and NTT. Its compression ratio can reach 1:18. Therefore, under the same circumstances, the compressed VQF file size is 30%-50% smaller than MP3, which is more suitable for online streaming, while the sound quality is excellent, near to CD quality (16-bit, 44.1 kHz stereo). But VQF has not revealed the technical standards, so far it has not become popular.

07 FLAC format

FLAC is short for Free Lossless Audio Codec, which can be interpreted as Chinese lossless audio compression coding, which is characterized by lossless compression. Unlike other lossy compression codes like MP3 and AAC, it can restore the sound quality of music discs. It is now compatible with many software and hardware audio products.
It can be said that FLAC is similar to MP3, but it is losslessly compressed, which means that the audio is compressed in FLAC without losing any information. And you can use the player to play compressed FLAC files, just like playing MP3 files.

08 APE format

APE is one of the most popular digital music file formats. Unlike lossy compression methods like MP3, APE is a lossless audio compression technology, which means that after compressing the audio data file read from the audio CD in APE format, you can also compress the file in APE format. The audio file is exactly the same as before compression, without any loss.

The file size of APE is about half that of CD, which is loved by many music lovers, especially for friends who want to stream audio CDs over the network, APE can help them save a lot of resources.

What are the common audio formats?

What are the common audio formats?

common audio formats
common audio formats

Most frequent and popular sound formats

common audio formats
common audio formats

01 MP3 format

MP3 is one of the most common audio formats. Its full name is Moving Picture Experts Group Audio Layer III. Simply put, MP3 is an audio compression technology that uses MPEG Audio Layer 3 technology to compress music into a smaller capacity file with a compression ratio of 1:10 or even 1:12. Compress files to a lesser extent in small cases. And it keeps the original sound quality very well.

It is precisely because of MP3’s small size and high sound quality that the MP3 format has become almost synonymous with online music. Use an MP3 player to uncompress (decode) MP3 files in real time so that high-quality MP3 music can be played. The highest bitrate is 320K, and the high-frequency part is one size fits all, which is its default.

02 WMA format

The full name of WMA is Windows Media Audio, which is an audio format promoted by Microsoft. The WMA format achieves a higher compression ratio by reducing the data stream while maintaining sound quality. The compression ratio can usually reach 1:18, and the generated file size is only half of the corresponding MP3 file. In addition, WMA can also be added to prevent copying through the DRM scheme, or add restrictions on playback time and playback times, and even restrictions on playback machines, which can effectively prevent piracy.

03 WAV format

WAV format is a lossless sound format developed by Microsoft Corporation, also known as waveform sound file. It is the oldest digital audio format and is widely supported by the Windows platform and its applications. The WAV format supports many compression algorithms, supports a variety of audio bits, sample rates, and channels. It adopts 44.1kHz 16-bit sampling rate. Therefore, the sound quality of WAV is almost the same as that of CD, and it is suitable for uploading to all major music platforms. But the WAV format is bulky and difficult to spread.

04 ASF format

The full name of ASF is Advanced Streaming Format, which is a media playback format developed by Microsoft and is suitable for playback on the Internet.

All the Audio Format Differences: Which One Should You Use?

All the Audio Format Differences: Which One Should You Use?

All the Audio Format
All the Audio Format

Three classifications of audio formats

All the Audio Format
All the Audio Format

Characteristics and differences of different audio formats

Which audio format is right for you?

You already know MP3, but what about AAC, FLAC, OGG or WMA? Why are there so many audio file formats and is there any best audio format?

Comparison of audio formats

Audio files come in various types and sizes. While we’re all probably 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?

All audio formats are divided into three main categories, and once you know what the categories mean, you can choose the format within the categories that best suits your needs.

uncompressed audio format

Uncompressed audio consists of actual sound waves that have been captured and converted to digital format without any additional processing. So uncompressed audio files tend to be the most accurate, but take up a lot of disk space: about 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 into 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 made) and a “bit depth” (how many bits are used to represent each sample). There is no compression involved. Digital recordings are almost accurate representations of analog sounds.

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

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

Music Formats

 

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

Music Formats

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.

DIGITAL AUDIO FORMATS

DIGITAL AUDIO FORMATS

Currently, thanks to digital audio formats, we can store and listen to our music on numerous devices, such as mobile phones, tablets, computers and music players.


What are digital audio formats?

Digital audio formats are basically containers. And the differences between them are fundamentally in:

Whether or not they are compressed.
If they are compressed, in the quality of compression.
The type of labeling they can support.
Digital audio formats

MP3

It is the best known, popular and most used. They are known by their extension “.mp3”.

It was developed by Moving Picture Experts Group, to be part of the well-known MPEG-1 and MPEG-2 standards.

Its fundamental characteristic lies in the fact that the technology behind it compresses the sound sequence, resulting in a really small file, which normally occupies half of the original file. To achieve this, it is necessary to lose certain sounds, which supposedly cannot be heard by the human ear.

Audio formats

WAV

Developed by the companies Microsoft and IBM, this format, whose name comes from the acronym WAVE (Waveform Aujdio File Format), is currently one of the audio formats that have no compression in the data, so they have excellent quality.

They are known for their “.wav” extension.

On the other hand, this format has the particularity that it includes support for almost all current audio codecs. This makes the WAV one of the most used formats in the field of professional sound, since the sound is captured with parameters of 44100 Hz and at 16 bits, the same quality can be obtained as on a CD.

On the contrary, one of the disadvantages of this format is that it has a limitation in recording, since it can only capture a maximum of 6.6 hours at maximum quality in the same file.

Audio formats

AIFF

The AIFF (Audio Interchange File Format) format is very similar to WAV. It was born as an answer from Apple to the Microsoft WAV, being initially only compatible with MAC computers. Currently it can also be used on Windows.

Due to its characteristics, AIFF, together with FLAC and WAV, are usually the most used formats in the professional field of audio.

Wma

The WMA (Windows Media Audio) format is a format of music files created by Microsoft.

One of its main features is that those files that have been compressed in WMA format occupy less space than MP3s, which also means reducing their quality. Therefore, it is a lossy audio compression format.

OGG

OGG audio formats are compressed audio files, which means that they have a size that allows them to be transmitted via WIFI, but at the same time avoid the damage that is usually generated in the compression process.

For example, Spotify uses these OGG formats.

Audio formats

OPUS

Opus is a new codec that use the Ogg container. It was developed by the same creators of FLAC, with the help of Mozilla and Skype.

This new format stands out for its low latency, being ideal for online audio transmissions.

FLAC

When we talk about the FLAC (Free Lossless Audio Codec) format, we are referring to an audio compression free codec without loss of quality.

Emerged within the community responsible for the OGG project, FLAC has become one of the strongest competitors of the WAV format, due to its advantages in terms of its sound quality.

Its objective is to reduce the size of the original file, eliminating data that are usually known as “waste”, without causing loss of quality.

This is the format used by the Tidal platform, the best service for high quality audio transmissions.

Audio formats

A THE C

The Alac (Apple Lossless Audio Codec) format is basically Apple’s alternative to FLAC. It is the format used by Itunes and for Apple Music broadcasts.

The most used audio formats

As you can imagine, when we talk about digital formats in the field of sound, the range is wide. When choosing the one that best suits our needs we have to think about several issues. To do this, the first thing is to know the most used audio formats.

CPA Online sound postproduction course We begin by clarifying the concepts of Bit Depth and the Sample Rate, fundamental to understand how audio formats work. These are two measures that indicate the quality of a digital audio file.

When we read the specifications of the audio formats and we find, for example, 32-bit / 192kHz and 24-bit / 96kHz, these figures refer to the “bit depth” and the “sample rate” respectively. They tell us how much information the different formats transmit and the sound quality. The higher the number of times a device plays the samples, the higher the quality.

Audio formats

MP3: these files weigh very little for any device to read. The negative part is that the quality of the compression pro is sacrificed.
CPA Online sound postproduction course

WAV (Waveform Audio File Format): are higher resolution files than MP3s, a piece of audio that is encoded with what is known as Pulse Code Modulation (PCM). The analog audio pieces are encoded and converted into digital so that they can have the Sample rate and the Bit Depth.
AIFF (Audio Interchange File Format): It is very similar to WAV and also uses the PCM to encode analog audio parts and present them in digital format. In fact, the AIFF and WAV files are more or less interchangeable.
In short, when we talk about a file in WAV or AIFF audio format we talk about a piece of sound of good quality.