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WAV audio format

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WAV audio format developed by Microsoft and IBM
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WAV AUDIO FORMAT

The key feature of the WAV (Waveform Audio Formal) format, which distinguishes it from other existing formats, is that it is used to store uncompressed digital data, that is, it is capable of storing sound in its highest quality and with any bitrate. It was developed by the Microsoft and IBM corporations and is primarily intended for the storage of uncompressed digital audio. This format is based on the PCM (Pulse-Code Modulation) audio digitizing method on which the technology for storing digital audio on audio CDs is based.

WAV Audio Files

There is an opinion that audio information is stored in WAV format on music CDs (those famous audio CDs). In fact, this is not the case. What audio CD and WAV have in common is precisely the basis: the method by which the audio was digitized. Both formats are based on PCM, hence their similarities. It’s easy enough to make sure of the differences – you can grab a music CD, convert it to WAV format (in computer jargon, this is called “grabbing”), and then burn it back to CD-R. As a result, the resulting disc will not play on stereos that only recognize normal audio CDs.

It is easy to guess that in WAV format, uncompressed audio is usually stored, then it is he who gives it the quality equal to the original during playback (that is, the quality of an audio CD). The highest quality during playback is the main advantage of this format. If we talk about its disadvantages, the main one is also obvious: it is a rather large size of the resulting files. In fact, if we compare the sizes of the same song in WAV and MP3 formats, they will differ significantly even with the minimum compression ratio. It is this shortcoming that drastically limits the distribution of WAV today, because only 15 to 20 songs can be recorded uncompressed or hundreds of songs compressed to a CD.

A particularly pronounced exit of users from the WAV format occurred with the creation of file-sharing networks on the Internet. This is for the same reason: sending a 3-5MB file over the Internet is one thing and 30-40MB is quite another. However, a certain proportion of listeners have never changed this format due to its highest quality. There have always been audiophiles who sacrificed their disk space, time, and money when downloading music from the internet, but they only listened to uncompressed audio. Today we can talk again about an increase in the number of users of the WAV format. This is due to the proliferation of relatively inexpensive and large capacity hard drives (up to several terabytes) for a computer and a sharp decrease in the cost of broadband and therefore very fast access to the Internet.

Among other disadvantages of the WAV format, it is worth noting the existing limitation on the maximum allowed file size, which is 4 GB. At first glance this seems sufficient, but if we take into account the CD quality of the recording, the maximum length of the track in WAV format is approximately 6.6 hours (at 44.1 kHz sample rate and in stereo mode). To overcome this barrier, it is necessary to use special software solutions – plugins.

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There is no worse deaf person than those who do not hear “.wav”.

This is the question of the century: is it really worth buying an original album, downloading songs from a band’s official websites (i.e. not listening to YouTube or Spotify) and having good headphones?

To answer, you first need to understand if the quality differences have just been flaunted or if they are really worth the price they charge.
But above all: what are the differences in simple words?

First, the format: On YouTube and Spotify we tend to find compressed formats of various types, while on CDs we find music in WAV format. The difference between a more compressed and a less compressed format is that certain intermediate information is discarded for storing memory: Among the examples of high-quality formats for listening to music, we can mention the WAV or the FLAC, while the less well-known one is the famous MP3 .

Digital sampling of an analog waveform involves the following parameters: The maximum frequency that the signal reaches (which determines how quickly I need to sample a bit based on a formula, and when you consider that Hz is the inverse of Is seconds, all return) and the number of bits used to encode the deflection range of the signal in relation to the sound intensity (the dynamics of the signal).

The WAV format takes these parameters into account and carries out the coding via the analog digital converter, while MP3 takes into account some psychoacoustic considerations, in particular the fact that certain frequencies are not perceived by the human ear and can therefore break off completely. from the file; There are also points where some sounds are louder and prevent the weaker ones from being heard, which also removes them. Last trick: Since some frequencies are perceived better and others worse, their levels are adjusted to store the most perceived. Once this selection is made, the signal that has been selected for storage is compressed.

It is not an insignificant detail to state that MP3s are not all the same, there are different formats for the sound playback speed: MP3 with 320 kbps or 256 kbps corresponds more to the uncompressed quality of CDs (1/4 of the information) of the CD in 256 kbps) while MP3 at 128 kbps or 96 kbps occupies an insignificant space per song, but we notice the difference because they make up 1/15 of the information (at 96 kbps) than that of a CD.

48000 Hz per second are sampled on a CD, with a likely excess of information that the ear does not even perceive. However, if you have a system that can reproduce these nuances, you will undoubtedly perceive a greater naturalness (depending on the device you are listening to).

When you talk about the type of headphones you use to listen to a song, it also has a big impact on the quality of the sound that reaches the ear. Take common headphones as an example: These act as digital-to-analog converters with a signal path that is exactly the opposite of analog-to-digital. Since the human ear cannot distinguish digital sounds, but inevitably requires a converter that converts them into sound waves, all previous work is lost on headphones of poor quality.

Even from the point of view of simple mechanics, the cones (the part of the headphones for reproduction that we find under the upholstery) have a soft part in the middle that offers space for air movement: by reducing this cone, the available air becomes much less and they cannot reproduce the sound wave perfectly. It goes without saying that inferior “headphones” are made from materials that, for example, cannot withstand certain pressures because they cannot reproduce a wide dynamic range – they are compressed accordingly.

Compression is the process of dropping signals too high and vice versa to make them all “in one band”. If the headphones are compressed, this means that the high signals are reduced and therefore distorted and the low signals are amplified and therefore imperfections are perceived more: the dynamics are lost. For example, a low signal that had a nice sound due to a precise intensity after amplification is likely to be almost annoying.

From all of this, we would like to conclude that if we do not allow ourselves to listen to a piece exactly as it was intended, we do not only deprive ourselves of acoustic feedback of the effects, but also the time for the production (to be consistent)

WAV format features

This digital audio format normally has no data compression and the name comes from the wave form audio file format.

The WAV format is quite similar to the AIFF format that Macintosh uses to store music in packets.

So you could also tell what is similar to the RIFF format.

File conversion is a process that has become more important as communications technology has advanced. This is nothing more than a process in which we can change the formats contained in a video file, such as a movie, or audios such as a song.

Nowadays, with the large number of formats that exist due to the diversity of technological devices that we have at our disposal, it is necessary to have the necessary knowledge and the indicated tools to be able to convert files to the formats that best suit our tastes. and needs. Movavi is, without a doubt, one of the most recommended programs to carry out this task.

What is WAV format?

file converter Among the wide range of formats is WAV. It is an audio file without any compression, which maintains 100% of the quality of the original audio. It is a standard audio format, which stores data such as the sample rate or the number of tracks.

WAV is compatible with Windows, with Mac; and most of the Android and iO players. In addition, it stores additional data related to the song. However, its main drawback is that they are very heavy files. If you want to save space, it is not highly recommended, but if you need to professionalize your work, it is the right one.

It differs from the most common MP3 format by the level of compression to which the audio file has been subjected. The WAV file does not have any compression and MP3 is much lighter. For its part, the FLAC format is at least half as light as WAV.

The main use of WAV and in what is superior to the other two, is the degree of professionalism of the audio, because it does not lose quality.

If for some reason this file does not play on your computer, you must obtain a program that can play it.

Music is a wonderful way to express what we feel, right? It makes a moment even more special or, if we are in the professional field, it is the cherry on the cake that will project our product or career.

To take into account: a movie, a commercial broadcast or an audiovisual gift for our loved ones, they are always more impressive if they are accompanied by music.