Sound format and Sound Card - Vikatu

 There are many types of audio format. I will explain all various types of audio format.

WAV –

It stands for Waveform Audio File Format, it was developed by Microsoft and IBM in 1991. It is just a Windows container for audio formats. That means that a WAV file can contain compressed audio. Most WAV files contain uncompressed audio in PCM format. It is just a wrapper. It is compatible with both Windows and Mac.

MP3 –

It stands for MPEG-1 Audio Layer 3. It was released in 1993 and became popular. It is most popular audio format for music files. Main aim of MP3 is to remove all those sounds which not hearable or less noticeable by humans ears. Hence making size of music file small. MP3 is like universal format which is compatible almost every device.

AAC –

It stands for Advanced Audio Coding. It was developed in 1997 after MP3.The compression algorithm used by AAC is much more complex and advanced than MP3, so when compared a particular audio file in MP3 and AAC formats at the same bitrate, the AAC one will generally have better sound quality. It is the standard audio compression method used by YouTube, Android, iOS, iTunes, and PlayStations.

these are the popular audio format. 

PCM –

It stands for Pulse-Code Modulation. It represents raw analog audio signals in digital form. To convert analog signal into digital signal it has to be recorded at a particular interval. Hence it has sampling rate and bit rate (bits used to represent each sample). It a exact representation of the analog sound and do not involve compression. It is the most common audio format used in CDs and DVDs.

Sound Card

Inside the computer, a sound card is an expansion component that is also referred to as a soundboard, audio output device, or audio card. It offers audio input and output capabilities in computers, which can be heard with the help of speakers or headphones. Although it is not necessary for the computer to have a sound card, every machine includes it as either built into the motherboard (onboard) or in an expansion slot. Through a device driver and a software application, sound cards make capable of configuring and utilizing.

Usually, an input device, a microphone, is attached to receive audio data, while speakers or headphones are generally used to output audio data. Most headphones use the size of 3.5 mm minijacks, which are the size of the connector. Through an optical audio port like a Toslink connector or with the help of a standard TRS (tip-ring-sleeve) connection, digital audio input and output are supported by some sound cards. The conversion of incoming digital audio data into analog audio is the primary function of a sound card through which speakers make capable of playing sound. In the reverse case, from the microphone, the analog audio data is converted into digital data by the sound card. These data can be hold on the computer device as well as modified with the help of using audio software.

While many machines may contain an actual card that exists in a PCI slot, but the sound card is also part of the motherboard in some computers. Also, you can install a new sound card (professional sound card) if you really need to enhance more audio capabilities to your computer. Professional sound cards may have more inputs and outputs and have the capability of supporting advanced sampling rates, like 192 kHz rather than 44.1 kHz. Instead of 3.5 mm, some sound cards may include 1/4 in. connectors that accommodate most instrument outputs.

However, to enhance more audio capabilities of your computer, you can install professional sound cards. For multi-channel recording, you can also use another option breakout box. Typically, this box comprises numerous audio connections and a built-in sound card; it is called an external box. For instance, 16 channels of audio are supported by a breakout box that cannot be fit on a single card. Some breakout boxes are specifically designed to connect with the box, though most breakout boxes connect to a Firewire or USB port.

Sound Card Description

A sound card is a hardware in rectangular shape that contains different ports on the side to connect audio devices, like a speaker, and also has multiple contacts on the bottom of the card. As the motherboard, peripheral cards and case are designed with compatibility in mind; therefore, at the time of installing the sound card it just fits outside the back of the case. This makes it capable of easily available for use. You also have an option with a sound card to plug microphones, headphones, and also other audio devices into your computer; because there are also USB sound cards available. Also, you can plug it directly into a USB port with the help of a small adapter.

In the past time, when using a narrow range of frequencies, computers were originally only able to produce beeps. Mainly, these beeps were used in the form of warning alarms.

Over time, for both professional and entertainment reasons, the need for high-quality sound increased by increasing growth in multimedia. A sound card AdLib was created to fill this need. In the AdLib sound card, the percussion mode and a 9-voice mode features were available that made programmable audio possible.

For computers, most of the motherboard manufacturers provide built-in sound cards. However, advanced users, instead of generic, built-in cards, commonly use expansion cards selected to meet their particular requirements.

Types of Sound Cards

The sound card is an expansion component in the computer that makes capable you to hear the sound, which comes from video files, mp3 file, and more other. In the late 1980s and early 1990s, sound cards first started to enter the mainstream. In modern times, almost all computers come with one. Mainly, sound cards have three types, and all contain their own advantages.

Motherboard Sound Chips

The sound cards were costly add-on cards when they were introduced for the first time. Its cost was hundreds of dollars. When the computer sound technology became available at a low price, miniaturization technology allowed computer hardware manufacturers to produce sound into a single chip. In modern times, there is a rare chance to find a computer not containing motherboard sound chip. Even if they only contain a separate sound card. The motherboard sound chips made sound card affordable for all computer owners. You can identify if your system has a motherboard sound chip.

Standard Sound Cards

Inside the computer, a standard sound card connects to one of the slots. Using a sound card rather than motherboard sound chip, offer a benefit as it contains its own processor chips. And, a motherboard sound chip produce sound on the basis of the computer processor. When playing games, a standard sound card offers better performance as it creates less of a load on the main processor.

External Sound Adapters

An external sound adapter has all the same features like standard sound card. It is a small box that enables connection to computer with the help of USB or FireWire port, instead of an internal expansion slot. Sometimes, it contains a feature that is not included by a standard sound card, such as physical volume control knobs and extra inputs and outputs. As compared to the standard sound card, it is much easier to move an external sound adapter to a new computer. Also, with USB or FireWire expansion slots, it is the only way to upgrade the sound of a laptop.

Uses of a sound card

The primary use of a sound card is to provide sound that you hear from playing music with varying formats and degrees of control. The source of the sound may be in the form of streamed audio, a file, CD or DVD, etc. There are many applications of a computer where a sound card can be used, which areas are as follows:

Games.

Voice recognition.

Watch movies.

Creating and playing MIDI.

Educational software.

Audio and video conferencing.

Business presentations.

Record dictations.

Audio CDs and listening to music.

Sound card connections

With surround sound or loudspeakers, digital out is used (white or yellow; words: "Digital" or "Digital Out").

Connection for external audio sources, such as tape recorder, record player, or CD player, sound in or line in (blue; Arrow pointing into waves).

The connection is for headphones or microphones, Mic or Microphone (pink)

For your speakers or headphones, the primary sound connection, sound out or line out (green; Arrow pointing out of waves). The second (black) and third (orange) sound-out connectors are also contained by this sound card.

For digital video cameras and other devices, some high-quality sound cards are used, FireWire (not pictured).

For connecting MIDI keyboard or joystick, MIDI or joystick (15 pins yellow connector) is used with older sound cards.

Sound Cards and Audio Quality

Instead of having a sound expansion cards, many modern cards have the same technology integrated directly onto the motherboard. These cards are known as on-board sound cards. But this configuration makes slightly less powerful audio system and allows for a less expensive computer. Almost, this way is appropriate for all computer users. Usually, dedicated sound cards are necessary for the serious audio professional. To share a common ground wire, since most of the desktop computers are set up for the front-facing headphone jacks and ports. So, if you also have USB devices plugged in, you may hear static in your headphones.

A Computer has no Sound

Although, it may happen the sound card or speakers are no longer communicating with each other as it is possible that they have disconnected from their ports/power. Usually, it can be an issue related to software that preventing the sound from playing. First, you make sure the volume of the song, movie, video, or which you are going to listen to.

A sound could be from a missing or corrupt device driver, which can be another reason for not delivering the sound. With the help of using any free driver updater tools, installing the sound card driver is the best way to overcome this problem.

If you have checked everything that described above and your computer still is not able to play a sound. Now, you need to check if you have installed proper software for media playback.