Posts Tagged ‘Portable Media Players’

What Is An Mp3 Player Of Portable Media Player?

Monday, October 26th, 2009
David Liu asked:

A digital audio player (DAP), more commonly referred to as an MP3 player, is a consumer electronics device that stores, organizes and plays audio files. Some DAPs are also referred to as portable media players as they have image-viewing and/or video-playing support. MP3 players are now regularly built into mobile phones, making them the most common form of digital audio player. In short, an MP3 player is a portable device that plays digital music files–although many MP3 players can do much more than that. They evolved from the portable cassette and CD players that we carried around in the 1980s and ’90s. Instead of bulky cassettes or scratch-prone compact discs, most MP3 players play files stored directly on the device. Aside from a pair of headphones, there is nothing extra you need to carry to enjoy your music collection.

An MP3 is a digital audio file compressed with a standard defined by the Motion Pictures Experts Group (MPEG). MPEG was formed to develop techniques for dealing with digital video; since most video also contains audio, MP3 was developed as an audio extension of that work. Officially known as “MPEG-1, Layer 3″, MP3 is a lossy compression algorithm that uses psychoacoustic modeling to reduce the size of audio files by up to 90%.

Psychoacoustics takes advantage of deficiencies in the human hearing system to throw away digital bits corresponding to sounds that cannot be heard. The human ear cannot hear soft sounds in the presence of loud sounds having a similar frequency; for example, a voice conversation becomes inaudible when a jet flies low overhead. This effect is known as auditory masking, and done correctly the discarded sounds will not be missed.

MP3 is a lossy algorithm in the sense that the original bits cannot be recreated from the compressed bits. In terms of hearing, however, MP3 is lossless because the human ear cannot distinguish between a CD recording and a properly encoded MP3 version of it. MP3s achieve this transparency at a bit rate of approximately 256 kilobits per second, or roughly one sixth of the 1.4 megabits per second required by the compact disc format.

MP3s can be recorded at lower bit rates, saving even more space, but audible differences begin to appear at rates below 128 kilobits per second. At these lower bit rates, MP3 can use a trick known as joint stereo to improve quality. Audio generally consists of left and right audio tracks. Joint stereo combines, whenever possible, the sounds common to both left and right tracks into one track. Instead of left and right, it has “common” and “different” channels.

Being an open standard, and therefore available to anyone, has played a major role in the widespread adoption of the MP3 file format. While specific implementations such as those by the Fraunhofer Institute may be protected by patents, there exist numerous open source implementations. MP3s were originally only playable on computers, but inexpensive, portable MP3 players such as Apple’s iPod have since been developed.


The immediate predecessor in the market place of the digital audio player was the portable CD player, which was sometimes referred to as a “portable audio device.”

Briton Kane Kramer designed one of the earliest digital audio players, which he called the IXI. His 1979 prototype was capable of approximately 3.5 minutes of audio playback but it did not enter commercial production. The related patents expired in 1988. Apple Inc. hired Kramer as a consultant and presented his work as an example of prior art in the field of digital audio players during their litigation with almost two decades later.

The first mass-produced DAP was created in 1997 by SaeHan Information Systems, which domestically sold its “MPMan” player in the middle of 1998. The South Korean company then licensed the players to Eiger Labs which distributed them—now branded as Eiger Labs MPMan F10—to the North American market during the summer of 1998. The flash-based players were available in 16 MB storage capacity.

The Rio PMP300 from Diamond Multimedia was introduced in September 1998, a few months after the MPMan. It was a success during the holiday season, with sales exceeding expectations. Interest and investment in digital music were subsequently spurred from it. Because of the player’s notoriety as the target of a major lawsuit, the Rio is erroneously assumed to be the first DAP.

In 1998, Compaq developed the first hard drive based DAP using a 2.5″ laptop drive. It was licensed to HanGo Electronics (now known as Remote Solution), which first sold the PJB-100 (Personal Jukebox) in 1999. The player had an initial capacity of 4.8 GB, which was advertised to be able to hold 1200 songs.

In October 2001, Apple Computer (now known as Apple Inc.) unveiled the first generation iPod, the 5 GB hard drive based DAP with a 1.8″ Toshiba drive. With the development of a minimalistic user interface and a smaller form factor, the iPod was initially notable within users of the Macintosh community. In July 2002, Apple introduced the second generation update to the iPod. It was compatible with Windows computers through Musicmatch Jukebox (now known as Y!Music Musicmatch Jukebox). The iPod series, which grew to include microdrive and flash-based players, has become the market leader in DAPs.

In 2002, Archos released the first “portable media player” (PMP), the Archos Jukebox Multimedia. Manufacturers have since implemented abilities to view images and play videos into their devices.

In 2003 the first MP3 players were installed into mobile phones in South Korea and the first artist to sell songs as MP3 file downloads directly to mobile phones was Ricky Martin. The innovation spread rapidly and by 2005, more than half of all music sold in South Korea was sold directly to mobile phones. The idea spread across the globe and by 2005 all five major handset makers, Nokia, Motorola, Samsung, LG and SonyEricsson had released musicphones. By 2006, more MP3 players were sold in musicphones than all stand-alone MP3 players put together. The rapid rise of the musicphone was quoted by Apple as a primary reason for developing the iPhone. In 2007, the installed base of musicphones passed the 1 billion level, and today more than half of all moblie phones in the world have an MP3 player.

Although online music services such as RealNetworks’ Rhapsody also offer legal downloads through a subscription plan, the launch of the iTunes Store in 2003 established the model of selling individual songs and albums for purchase.


Digital sampling is used to convert an audio wave to a sequence of binary numbers that can be stored in a digital format, such as MP3.

Common features of all MP3 players are a memory storage device, such as flash memory or a miniature hard disk drive, an embedded processor, and an audio codec microchip to convert compressed sound into analogue form that is then played through the speaker jack.

Most DAPs are powered by rechargeable batteries, some of which are not user replaceable. Listening to music stored on DAPs is typically through earphones and stereo systems connected with a 3.5 mm jack.


Digital audio players are generally categorized by storage media:

Flash-based Players: These are non-mechanical solid state devices that hold digital audio files on internal flash memory or removable flash media called memory cards. Due to technological advancements in flash memory, these originally low-storage devices are now available commercially ranging up to 32 GB. Because they are solid state and do not have moving parts they require less battery power and may be more resilient to hazards such as dropping or fragmentation than hard disk-based players. Basic MP3 player functions are commonly integrated into USB flash drives.

Hard drive-based Players or Digital Jukeboxes: Devices that read digital audio files from a hard disk drive (HDD). These players have higher capacities currently ranging up to 250 GB. At typical encoding rates, this means that thousands of songs can be stored on one player.

MP3 CD Players: Portable CD players that can decode and play MP3 audio files stored on CDs.

Networked audio players: Players that connect via (WiFi) network to receive and play audio.

Common audio formats

MP3 is the dominant format, and is nearly universally supported. The main alternative formats are AAC and WMA. Unlike MP3, these formats support DRM restrictions that are often implemented into files from paid download services. Open source formats, which are completely patent-free, are available - though less widely supported. Examples include Ogg Vorbis, FLAC, and Speex.

Most players can also play uncompressed PCM in a container such as WAV or AIFF.


Although these issues aren’t usually controversial within digital audio players, they are matters of continuing controversy and litigation, including but not limited to content distribution and protection, and digital rights management (DRM).

Lawsuit with RIAA

The Recording Industry Association of America (RIAA) filed a lawsuit with Diamond Multimedia for its Rio players, alleging that the device encouraged copying music illegally. But Diamond won a legal victory on the shoulders of the Sony Corp. v. Universal City Studios case and DAPs were legally ruled as electronic devices.

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Friday, August 7th, 2009
juicy asked:

Ipod is a brand of portable media players designed and marketed by Apple Inc. The ipod line can play many audio file formats including MP3, WAV, AAC, Audible audiobook and AIFF. It is highly selling music listening device and a real revolutionary device made by Apple. This product is known because of its high quality crystal clear sound quality. There are many products of ipod like ipod nano, ipod shuffle and ipod touch. Ipod is most popular device among the music lovers.

Ipod data recovery recovers many files like photos, videos, images and music which are either unintentionally deleted or formatted. The ipod data recovery software is the ultimate tool for your ipod video and ipod photo to restore your lost or deleted music files from ipod shuffle, ipod touch and ipod nano and ipod fifth generation series. This ipod data recovery software proves to be the very good option then sending your ipod for repair to any data recovery service.

Some of the key features of the ipod data recovery software are as follows-

Easy to operate with no technical software skills. Recovers data even if ipod partition volume is not recognized by the system. Retrieves corrupted files and folders from the ipod storage disk. Ensure music recovery when updated or restored using itunes software. Restores lost photos, music and deleted songs from logically damaged or formatted ipod memory. Ipod data recovery software supports all file formats including audio files (mp3, aiff, wav, m4a, Apple lossless etc), picture files (bmp, gif, jpg, jpeg, png etc), video files (quick time, mpeg4 etc). Ensures data recovery from unintentionally formatted ipod memory or when data reset operation is being performed on ipod device.

The system requirements for ipod data recovery software are very less. It requires minimum64 MB of ram and 20 MB of free space hard disk space. Ipod data recovery software supports all latest operating system like windows vista/2000/2003/XP. You can download and can buy online the ipod data recovery software. So now you are more secured with your ipod data because now ipod data recovery is possible with ipod data recovery software. If you want to keep your memorable videos, music and photos in ipod for long time then you can opt for ipod data recovery software.

Home Party Marketing Podcasts & Podcasting : the Best Way to Promote Your Home Party Business

Wednesday, August 5th, 2009
Patricia Kagwiria Makhulo asked:

Home party companies place many restrictions on their home party consultants and direct sales reps. when it comes to marketing!  When one considers the competition that is out there relative to party plan companies, it is a wonder that home party consultants are still going strong.  At the end of the day in order to qualify for that commission check you must  make direct sales, which translate to individual volume and personal volume.  So what is a direct sales consultant to do?  May I recommend podcasting?

What Is A Podcast?

Podcasts definitions being what they are, can get the newbie confused.  Think of a  podcast as home made advertorials.  There are both audio podcasts and video podcasts.

Podcasts are a series of audio or video digital-media files, which can and should be distributed over the Internet by syndicated download, through Web feeds, to portable media players and personal computers. Podcasts stand out and are distinguishable  from other digital-media formats by its ability to be syndicated, subscribed to, and downloaded automatically when new content is added. 

Podcasting is having your own personal TV show or radio show, featuring you!  So its Oprah being heard and watched in over 70 countries!

The host or author of a podcast is often called a podcaster.

Apple, the company has revolutionized this method of media dissemination through ipods and more recently with its uber popular iPhone! Educational podcasts tend to be one of the best podcasts out on the marketing.

So How does one create a podcast?

You must first decide whether you will be requiring an audio podcast?  Perhaps you are more inclined to video podcasts, you are also welcome to a combination of the two.

Then you need to decide what outlets you will use to dissemeninate your podcasts.  There can be found on the web a listing of podcast directories that you can submit your podcast to, the most popular one being iTunes!  Also be aware that there may be those who do not use itunes, so offer some options.   One of the better known podcast directory for podcast distribution services is podcast alley.  A podcast blog is highly recommended because people can read and hear the content right from your won blog and as such create a lot of traffic for you!  (Do I hear free, qualified direct sales leads?)

Of course as with any endeavor, you will want to decide on a target audience.  My target is women, between the ages of 25-50 who are involved in direct sales, direct selling, home party plans, or home based business!

Then you want to decide what the focus of your podcast.  Will you be sharing storied, interviews, tips, marketing lessons?  How to and educational podcasts a staple.  Writing podcasts is highly recommended,  always create outlines so that you do not ramble on for hours on end!  You will need an introduction, body and conclusion to your podcast!

How to Make A Podcast

Now this where things get exciting.  What type of computer do you have?  Mac come with inbuilt software throught garage band that makes it very easy to record and covert your mp3 podcasts.  This the the file format that makes it easy to download podcasts.

Garage Band for Macs

Audacity for PC’s (they also have audacity for macs)


Editing Ability

Intro & Outro Music


RSS Feed Creator!

Podcatchers e.g, itunes

An Internet connection!

Alright now armed with your tools and knowledge, be on your merry way and create a podcast!

Have an iPhone? Got iTunes?  I have a special treat for you.  Every Wednesday I share a 15 minutes Home Party & Direct Selling Marketing Strategies Guaranteed To Boost Home Party Sales!

Here is to your success,

Party Plan Pat

Direct Sales Coach & Consultant