Showing posts with label podcasting. Show all posts
Showing posts with label podcasting. Show all posts

Tuesday, April 21, 2009

Facts About Mp3 Player, Mp4 Player And iPod


The invention of the MP3 player, with MP4 player and iPod following it, has revolutionized the music industry. These lightweight, reasonably priced, portable music gadgets are almost everywhere you look. Earlier they used to be the obsession of the geeks, nerds and the electronic enthusiasts but today these players are a must have consumer electronic item for almost everyone whether it is the stay at house mom, working business executive, fitness freak joggers, teenagers or even the bored granddad.

MP3 player has personalized music like never before. The MP3 craze has reached its peak with people wanting more and more features in their players. What they want is to download their complete collection of music in their player. You can download and store more than thousands of songs inexpensively into your device and listen to it whenever you want; whether at office or at home or tolerating a boring lecture or even struggling past a heavy traffic jam. A music player seems to be in every hand nowadays. These are wireless, portable, wonders of music and entertainment that can store, systematize and play music on demand.

The three main types of digital audio players are MP3 CD Players that can play both data CDs and audio CDs with MP3 format files, Flash-based Players that are solid state devices with internal media or memory cards type external media and Digital Jukeboxes like the apple iPod and Creative Zen which can read digital audio files from a hard drive. These types of players are the most advanced in technology and have high memory ranging from 1.5 GigaByte to 100 GigaByte.

There is a myth regarding MP3 and MP4 player as Mp4 being a successor of Mp3 player, but these two are different things. Fundamentally, Mp3 is a specific category of audio format while Mp4 is actually a container format. But an Mp4 player can also play Mp3 files besides MP4 format files with complete clarity just like the original player.

The iPod was introduced by Apple Inc. and was launched in October 2001. The varieties of iPod available today include video fifth generation iPod, the small iPod nano and the display free iPod shuffle. You can use Apple`s iTunes software to transfer music of your choice to the devices. An iPod supports and plays MP3, AAC, AIFF, Protected AAC, WAV and some other audio file formats. The Apple iPod also has some additional features like displaying text files, viewing contacts and synchronizing it with the host computer, gaming facilities like the Brick, solitaire, Parachute and Music Quiz. A lot of accessories have been made for the iPod such as sound recorders, wired remote control, FM radio tuners, and cables for enabling TV connections.

iPods have often been criticized due to their short life-span, delicate hard drives.There are also some health risks associated with frequent use of these players which can lead to loss in audio capacity and can also lead to absent mindedness.

All of these music players are portable and use either a semi-permanent rechargeable battery or conventional batteries that can be disposed or recharged. Some MP3 / MP4 players also have additional features like playing FM stations, games, microphone for voice recording, address storage book and etc.

The MP3 player have created a huge mass hysteria amongst some age groups leading to many companies joining the bandwagon to design and market different types of MP3, MP4 players and iPods. It has also given rise to an entirely new industry of downloading sites. This heavy competition has forced companies to find new and innovative use of these players like incorporating features like camera, mobile and etc.

This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author's name and all the URLs (links) mentioned in the article and biography must be kept.

Sunday, March 22, 2009

A Brief History Of Ipod


iPod is a digital mp3 / mp4 player developed and marketed by Apple Inc., an American consumer electronics multinational corporation. During their research, Apple found that in comparison to available camcorders, digital cameras, and organizers; digital music players recorded poor sales, primarily due to their awful user interfaces. Apple wanted to do something about it and so Jon Rubinstein, Apple's hardware engineering chief brought together a team comprising of Tony Fadell (who dreamed of a hard disk based music player), Michael Dhuey (hardware engineer), Jonathan Ive (design engineer), and Stan Ng (marketing manager). In less than a year, they designed a hard disk based music player, that had a 5 GB hard drive and capable of storing 1000 songs.

Apple's iTunes software is utilized to operate the iPod (m3 / mp4 player). The software is compatible with all Mac systems. The operating system is stored on its hard disk. A boot loader program is contained in a NOR flash ROM chip (either 1 MB or 512 KB) which instructs the device to load the operating system from the hard disk. The iPod has a 32 MB of RAM, a portion of which is used to hold the operating system from firmware, and the rest is used to cache songs from the hard disk. Apple also invented a technology whereby the hard disk of iPod could spin up once and about 30 MB of upcoming songs could be cached into the RAM. This did not require the hard disk to spin up for every song and thereby saved battery power. Apple also introduced a Windows version of iPod, at a later stage.

The audio files that iPod (mp3 / mp4 player) supports are MP3, AAC/M4A, Protected AAC, AIFF, WAV, Audible audiobook, and Apple Lossless audio file formats. MIDI and WMA files can be played only after a converter accomplishes conversion, for non-Digital Rights Management (DRM). Ogg Vorbis, FLAC, and other open-source audio formats are not supported at all.

Apple wanted an extremely user friendly interface and thus adopted the minimalist interface, which features only five essential buttons, namely, Menu (to access functions and to toggle the backlight); Center (for menu item selection); Play/ Pause (this also works as an off switch when held for few seconds); Skip Forward/ Fast Forward; and Skip Backwards/ Fast Reverse. An additional Hold button is provided for accidental button pressing prevention, and it can reset the iPod if it has frozen or crashed. Functions such as volume control, scrolling are handled by the usage of the rotational click wheel. Later models have some minor changes in the functions of the buttons but overall the number of buttons has remained at five.

To market this path-breaking mp3 / mp4 player, they needed a suitable futuristic name and so they hired a freelance copywriter, Vinnie Chieco, and other writers to give a name. Inspired by the movie 2001: A Space Odyssey and the dialogue "Open the pod bay door, Hal!" with reference to the context of the Discovery One spaceship and its white EVA Pods, Vinnie Chieco proposed the name of the product as iPod. The management of Apple accepted the proposed name and on 23 October 2001, the iPod was officially launched. The rest they say is history.

To enable customers to access songs of their choice, Apple opened up an online media store The iTunes Store on 29 April 2003, where individual songs could be downloaded at prices less than a U.S. dollar per song. The purchased songs can be played only on iPods. Subsequent versions of this iPod (mp3 / mp4 player) also featured video capabilities, and thus iTunes Store started selling short videos from 12 October 2005. From 12 September 2006, full-length movies were also available at the iTunes Store.

iPods have come a long way from their inception, and now the latest fifth generation iPods possess multimedia capabilities and are available in both Mac OS and Windows OS versions. Usually, if a new iPod is plugged into a Mac OS computer, then the hard disk of this mp3 / mp4 player is formatted as per the HFS+ file format, and if it plugged into a Windows OS computer, it is formatted as per the FAT32 file format. From being a digital music player, the iPod has now transformed into a digital media player.