Expansion Cards And Sound Cards
- Date: 2008-10-05 - Word Count: 507
Share This!
Some computers have build in sound capabilities, while others require an additional component known as an expansion card or sound card. Most sound cards are used for listening to music or watching videos; other functions of the sound card are music composition and video editing. Sound cards can also be used during presentations for work or for educational purposes, even playing video games.
The sound card facilitates (directs, processes, and oversees), audio signals that are inputted and outputted both to and from the computer under the control of the computers' programs. Sound is the vibration of molecules of gas, liquid and/or solid objects that produce frequencies that are that are detectable by ears.
From 20 Hz to 20,000 Hz (20 KHz) is the frequency range that humans have the capability of hearing. Sound cards have the ability to produce these frequencies and ones above and below the human range of hearing. Sound cards can take digital data that has been recorded or generated and put it in analog format, the process is known as digital-to-analog converting. Normally external devices, such as speakers, headphones or amplifiers connect with the output port on the sound card so that the multimedia and programs can be heard.
Normally a sound card has a line in connector so that recorded audio can be transferred on to a computer, digitized and stored on the hard drive for storage, editing or processing. Microphone connectors are another common external source, for use by microphones and other input devices. Voice recognition software and voice over applications input through a microphone jack for polyphonic songs or music. Polyphony is the ability a sound card possesses, that allows more than one voice or sound to play at the same time, independent of each other.
All of today's sound cards provide actual hardware polyphony and are usually referred to as "hardware audio accelerators" but actual voice polyphony is only one of today's features. 3D sound and positional audio (Example: A quarter sounds different to the person standing next to it than it does to the person standing across the room, when the quarter falls to the floor.), and real-time DSP effects (Digital Sound Playback) are affected by the hardware acceleration of today's sound cards by being emitted cleaner and clearer.
The connection ports of the modern sound card are color coded each has a representing symbol for easy for easy identification purposes, as per the System Design Guide for PCs. The Pink connection port is for the microphone; Light Blue is for the audio input; Lime Green is for the audio output (speakers or headphones); Brown or Dark is for Right-to-left speaker; Orange is for the speaker output (subwoofer); Gold or Grey is for games ports or MIDIs (Musical Instrument Digital Interface).
The first sound card was made in 1990 and was called a Music Synthesizer Card; the card was equipped with a manual adjustment knob for volume control. The first manufacturers of sound cards were Adlab who produced OPL2, and Creative Labs, who produced the Creative Music System, which was later renamed the SoundBlaster.
The sound card facilitates (directs, processes, and oversees), audio signals that are inputted and outputted both to and from the computer under the control of the computers' programs. Sound is the vibration of molecules of gas, liquid and/or solid objects that produce frequencies that are that are detectable by ears.
From 20 Hz to 20,000 Hz (20 KHz) is the frequency range that humans have the capability of hearing. Sound cards have the ability to produce these frequencies and ones above and below the human range of hearing. Sound cards can take digital data that has been recorded or generated and put it in analog format, the process is known as digital-to-analog converting. Normally external devices, such as speakers, headphones or amplifiers connect with the output port on the sound card so that the multimedia and programs can be heard.
Normally a sound card has a line in connector so that recorded audio can be transferred on to a computer, digitized and stored on the hard drive for storage, editing or processing. Microphone connectors are another common external source, for use by microphones and other input devices. Voice recognition software and voice over applications input through a microphone jack for polyphonic songs or music. Polyphony is the ability a sound card possesses, that allows more than one voice or sound to play at the same time, independent of each other.
All of today's sound cards provide actual hardware polyphony and are usually referred to as "hardware audio accelerators" but actual voice polyphony is only one of today's features. 3D sound and positional audio (Example: A quarter sounds different to the person standing next to it than it does to the person standing across the room, when the quarter falls to the floor.), and real-time DSP effects (Digital Sound Playback) are affected by the hardware acceleration of today's sound cards by being emitted cleaner and clearer.
The connection ports of the modern sound card are color coded each has a representing symbol for easy for easy identification purposes, as per the System Design Guide for PCs. The Pink connection port is for the microphone; Light Blue is for the audio input; Lime Green is for the audio output (speakers or headphones); Brown or Dark is for Right-to-left speaker; Orange is for the speaker output (subwoofer); Gold or Grey is for games ports or MIDIs (Musical Instrument Digital Interface).
The first sound card was made in 1990 and was called a Music Synthesizer Card; the card was equipped with a manual adjustment knob for volume control. The first manufacturers of sound cards were Adlab who produced OPL2, and Creative Labs, who produced the Creative Music System, which was later renamed the SoundBlaster.
Related Tags: computers, computer accessories, computer supplies, sound cards, expansion cards, computer supply
Victor Epand is an expert consultant for computer memory, PC supplies, and computer games. When shopping, we recommend the best online stores for PC supplies, computer accessories, Sound Cards, computer memory, RAM, and used computer games. Your Article Search Directory : Find in Articles
Recent articles in this category:
- Fix Printer, Keyboard, Speaker and Monitor Cables With Funky Organizers
There are different types of cables that are used when you have a desktop computer at home. Most of - The Growing Trend of Asterisk Phone Systems
Truly, businesses are doing everything they can in the economy and competitive world of today to rem - The Future of Business Intelligence: Innovations in Location Intelligence
In the coming years, many business analysts are predicting that Business Intelligence (BI) will play - Adobe Photoshop Album Starter Edition and What Happened to the Unlock Codes
Adobe has long been known as a star in the digital image editing world and the Adobe Photoshop Album - Choosing the Best Computer For Graphic Design
In the 1980s, desktop publishing came out and graphic designers began to utilize computers for all k - Versatility of Pocket HD Camcorders
In the era of the do-everything handheld gadget, high def camcorders family seems almost passee. The - Contemporary Office Furniture
When considering Contemporary Office Furniture there are a few things that you really should conside - Professional Web Design, Professional Web Designer
There is a lot to consider if you are looking for a Professional Web Design. So let's get to it. Fir - Cell Phone Protection and Safety For Kids
If your like the millions of parents giving your children a cell phone for safety when their away fr - Looking For That Smart Pc Workstation And Desk
Do you need a work area at home. Maybe it is just for doing bills. It may be for a community work ar
Most viewed articles in this category:
- Voip Residential Comparison Guide: Evaluating Packet8, Lingo, And Vonage
Voice over internet protocol [internet telephony] is a rapidly growing technological alternative to - What's The Difference In The Ionic Breeze Quadra?
The Ionic Breeze Quadra is the newer line of ionic breeze units offered by The Sharper Image. These - Selling World of Warcraft Accounts
Everybody knows that WoW is one of the most exciting MMORPGs ever created. This makes selling WoW ac - Film Cameras
Film cameras are simple cameras, which could be used by all easily. People prefer to use film camera - Salesboom SLA-MS Competition
Oh, the irony. Online CRM Services shy away from offering customers a Service Level Agreement. Why t - How To Improve Your Computer Speed Almost Instantly
Probably your computer, even though you bought it last year its no longer that much fast. Like any o - The Mosquito Ringtone - The Tone Adults Can't Hear
Without a doubt, the mosquito ringtone is one of the most popular ringtones ever. Good luck trying - Auto Navigation Systems And Gps Technology While Traveling
If you have managed to do any research on auto navigation systems I'm sure you've come across countl - Do Cheap iPods Really Exist?
If you know anything about music trends, you know that iPods are the hottest portable music device t - Online Mobile Phone Offers: Take 10 Minutes To Save £360 On Your Next Mobile Phone Contract
Cash Is Falling Out Of Your Pocket If you live in the UK, you're probably paying line rental on a m