How Do MP3 Players Work? Digital Audio Technology Revolutionizes Music Enjoyment

Millions have enjoyed recorded music since 1877 when Thomas Edison invented the phonograph. Then came radio, records, tapes and CD's. But today's digital audio players are a quantum leap forward in music technology. To understand what makes these music players so revolutionary, let's explore the question, "How do mp3 players work?"

Until recently listening to music recordings involved mechanically moving the media past an interface to pick up an analog signal called a wave-form. This signal of vibrations was amplified and sent to the speakers where we heard it as sounds. When digitized, the wave-form becomes a WAV file. It's a major improvement, but the file is very large and a CD disc is limited to about 80 minutes of music.

So What is an iPod, and How does an iPod work?

Apple's iPod is the best known mp3 player. In answer to the question, How do iPods work, the next two paragraphs really describe how all portable digital music players function.

Software converts the music to a small digital file, usually WAV to mp3, using a codec like MP3 or WMA. The codec compresses the file by discarding sounds inaudible to the human ear. The digital file is stored in the mp3 player's flash or micro-drive memory. Because the file is so small, a player no larger than a deck of cards can hold up to thousands of songs.

For play-back the mp3 player executes several functions. Embedded software reads the file, decompresses the encoding, converts it back to analog, amplifies the signal and sends it to the headphones. And voilá, we have crystal clear sound without the annoying cracks, pops and hisses particularly common to records and tapes.

How We Do MP3 (Player Types, Functions & Features)

Even with a seemingly never-ending stream of new products, there are basically three types of audio devices that work well for audio CD duplication in a portable personal player.

Flash Players - the smallest, least expensive, and most reliable. Using solid state memory with embedded software, they have no moving parts, so batteries last longer and skips are eliminated. They have limited memory, but will still hold dozens of songs. Most players have search, shuffle, repeat and other popular features.

Micro-Drive Players - the tiny hard drives in these mp3 players have up to 60GB of memory and will hold thousands of tunes. Some also store and display photos. Anti-skip technology helps, but shock or vibration can still cause skips. They typically have more functions and features than flash players.

CD MP3 Players - the new generation of portable CD players. Using formats like mp3, WMA and ATRAC, they play (some also burn) CD's that hold 10 to 45 hours of music per disc. They play standard and/or 3" MiniDisc CD's. Standard CD sized units cost less than most mp3 players. MiniDisc player prices are higher but they hold the most music, and they're about the same size as a micro-drive mp3 player. Most play both pre-recorded and CD-R/RW discs. Features are similar to the other players.

For more information, see Compare MP3 Players

MP3 players information from A to Z: player types & features, how they work, accessories,comparisons and more - plus free music download tips and info at A-Z MP3 Players.com, Your Complete A-Z Resource for MP3 Players, Accessories and Information.

This article may be re-printed in its entirety, with no changes and this resource box included. © 2005 http://www.a-z-mp3-players.com All rights reserved

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AO Safety/3M Tekk 90541 WorkTunes AM/FM Hearing Protector with Digital Tuning and MP3 Input

Protect your ears while keeping yourself motivated at your job site with your favorite tunes or radio programming with the AO Safety 90541 WorkTunes with digital tuning hearing protector, which includes an integrated AM/FM radio and a stereo input jack for connecting an MP3 player. A great choice for use on construction sites (check your local regulations), in your workshop, or in your yard while mowing or blowing, the WorkTunes hearing protector offers an EPA noise reduction rating of 22 decibels.

The lightweight gel/foam ear cushions offer comfort for extended wear. You'll enjoy convenient, comfortable hearing protection from the WorkTunes headset, which features lightweight gel/foam cushions that feel great even after wearing for an entire day, an adjustable stainless steel headband with padded top. Hearing protectors are recommended whenever you encounter extended periods of sound levels regularly exceeding 85 dBA--essentially, a level of noise where you feel the need to shout in order to be heard by someone just 3-feet away (see a chart showing typical sound levels). The radio and its controls are housed in one cup, and you'll be able to quickly tune to your desired AM or FM radio stations with the easily accessible seek/scan tuning buttons. Reception strength may vary depending upon location. You can also save up to 10-preset stations with a dedicated key that sits below the LCD screen, which offers a large-sized display of the radio frequency. Other controls include a combined on/off/volume control and a toggle button that switches between AM and FM radio. The LCD screen also offers a low battery indicator (see a larger schematic image of all controls). You can also connect an optional MP3 player (such as an Apple iPod), CD player or other portable devices such as a scanner via the stereo input jack (35.mm male-to-male cable not included). Additionally, the WorkTunes headset protects your hearing from both the external environment and the music you're listening to thanks to a volume control limiter that tops out at 85 dB. The radio and digital input are powered by 2 AA batteries (not included), which provide approximately 140 hours of operating time.

The WorkTunes hearing protector combines an AM/FM radio with digital input for connecting your MP3 player (see larger schematic image).

Price: $79.99

Click here to buy from Amazon

This post was made using the Auto Blogging Software from WebMagnates.org This line will not appear when posts are made after activating the software to full version.

How Do MP3 Players Work? Digital Audio Technology Revolutionizes Music Enjoyment

Millions have enjoyed recorded music since 1877 when Thomas Edison invented the phonograph. Then came radio, records, tapes and CD's. But today's digital audio players are a quantum leap forward in music technology. To understand what makes these music players so revolutionary, let's explore the question, "How do mp3 players work?"

Until recently listening to music recordings involved mechanically moving the media past an interface to pick up an analog signal called a wave-form. This signal of vibrations was amplified and sent to the speakers where we heard it as sounds. When digitized, the wave-form becomes a WAV file. It's a major improvement, but the file is very large and a CD disc is limited to about 80 minutes of music.

So What is an iPod, and How does an iPod work?

Apple's iPod is the best known mp3 player. In answer to the question, How do iPods work, the next two paragraphs really describe how all portable digital music players function.

Software converts the music to a small digital file, usually WAV to mp3, using a codec like MP3 or WMA. The codec compresses the file by discarding sounds inaudible to the human ear. The digital file is stored in the mp3 player's flash or micro-drive memory. Because the file is so small, a player no larger than a deck of cards can hold up to thousands of songs.

For play-back the mp3 player executes several functions. Embedded software reads the file, decompresses the encoding, converts it back to analog, amplifies the signal and sends it to the headphones. And voilá, we have crystal clear sound without the annoying cracks, pops and hisses particularly common to records and tapes.

How We Do MP3 (Player Types, Functions & Features)

Even with a seemingly never-ending stream of new products, there are basically three types of audio devices that work well for audio CD duplication in a portable personal player.

Flash Players - the smallest, least expensive, and most reliable. Using solid state memory with embedded software, they have no moving parts, so batteries last longer and skips are eliminated. They have limited memory, but will still hold dozens of songs. Most players have search, shuffle, repeat and other popular features.

Micro-Drive Players - the tiny hard drives in these mp3 players have up to 60GB of memory and will hold thousands of tunes. Some also store and display photos. Anti-skip technology helps, but shock or vibration can still cause skips. They typically have more functions and features than flash players.

CD MP3 Players - the new generation of portable CD players. Using formats like mp3, WMA and ATRAC, they play (some also burn) CD's that hold 10 to 45 hours of music per disc. They play standard and/or 3" MiniDisc CD's. Standard CD sized units cost less than most mp3 players. MiniDisc player prices are higher but they hold the most music, and they're about the same size as a micro-drive mp3 player. Most play both pre-recorded and CD-R/RW discs. Features are similar to the other players.

For more information, see Compare MP3 Players

MP3 players information from A to Z: player types & features, how they work, accessories,comparisons and more - plus free music download tips and info at A-Z MP3 Players.com, Your Complete A-Z Resource for MP3 Players, Accessories and Information.

This article may be re-printed in its entirety, with no changes and this resource box included. © 2005 http://www.a-z-mp3-players.com All rights reserved

This post was made using the Auto Blogging Software from WebMagnates.org This line will not appear when posts are made after activating the software to full version.