mini lcd touch screen mp4 player quotation

A portable media player (PMP) (also including the related digital audio player (DAP)) is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files.compact disc (CD), Digital Video Disc (DVD), Blu-ray Disc (BD), flash memory, microdrive, or hard drive; most earlier PMPs used physical media, but modern players mostly use flash memory. In contrast, analogue portable audio players play music from non-digital media that use analogue media, such as cassette tapes or vinyl records.

Digital audio players (DAP) were often marketed as MP3 players even if they also supported other file formats and media types.video playback. Generally speaking, they are portable, employing internal or replaceable batteries, equipped with a 3.5 mm headphone jack which can be used for headphones or to connect to a boombox, shelf stereo system, or connect to car audio and home stereos wired or via a wireless connection such as Bluetooth. Some players also include radio tuners, voice recording and other features.

DAPs appeared in the late 1990s following the creation of the MP3 codec in Germany. MP3-playing devices were mostly pioneered by South Korean startups, who by 2002 would control the majority of global sales.Apple iPod.smartphones and tablet computers have led to a decline in sales of PMPs,Touch on May 10, 2022, though certain flagship devices like the Sony Walkman are still in production. Portable DVD and BD players are still manufactured.

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 advances in flash memory, these originally low-storage devices are now available commercially ranging up to 128 GB. Because they are solid state and do not have moving parts they require less battery power, are less likely to skip during playback, and may be more resilient to hazards such as dropping or fragmentation than hard disk-based players. Some of these may be styled just as USB flash drives.

MP3 CD/DVD players: Portable CD players that can decode and play MP3 audio files stored on CDs. Such players were typically a less expensive alternative than either the hard drive or flash-based players when the first units of these were released. The blank CD-R media they use is very inexpensive, typically costing less than US$0.15 per disc. These devices have the feature of being able to play standard "Red book" CD-DA audio CDs. A disadvantage is that due to the low rotational disk speed of these devices, they are even more susceptible to skipping or other misreads of the file if they are subjected to uneven acceleration (shaking) during playback. The mechanics of the player itself however can be quite sturdy, and are generally not as prone to permanent damage due to being dropped as hard drive-based players. Since a CD can typically hold only around 700 megabytes of data a large library will require multiple disks to contain. However, some higher-end units are also capable of reading and playing back files stored on larger capacity DVD; some also have the ability to play back and display video content, such as movies. An additional consideration can be the relatively large width of these devices, since they have to be able to fit a CD.

Today, every smartphone is a portable media player; however, prior to the smartphone explosion in the 2007-2012 time frame, a variety of handheld players were available to store and play music. The immediate predecessor in the market place of the digital audio player was the portable CD player and prior to that, the personal stereo. In particular, Sony"s Walkman and Discman are the ancestors of digital audio players such as Apple"s iPod.

Pocket devices. These are solid-state devices that hold digital audio files on internal or external media, such as memory cards. These are generally low-storage devices, typically ranging from 128MB to 1GB, which can often be extended with additional memory. As they are solid state and do not have moving parts, they can be very resilient. Such players are generally integrated into USB keydrives.

Devices that read digital audio files from a hard drive. These players have higher capacities, ranging from 1.5GB to 100GB, depending on the hard drive technology. At typical encoding rates, this means that thousands of songs—perhaps an entire music collection—can be stored in one MP3 player. Apple"s popular iPod player is the best-known example.

British scientist Kane Kramer invented the first digital audio player,IXI.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 Burst.com almost two decades later.LCD screen, navigation and volume buttons and would have held at least 8MB of data in a solid-state bubble memory chip with a capacity of 31⁄2 minutes" worth of audio. Plans were made for a 10-minute stereo memory card and the system was at one time fitted with a hard drive which would have enabled over an hour of recorded digital music. Later Kramer set up a company to promote the IXI and five working prototypes were produced with 16-bit sampling at 44.1 kilohertz with the pre-production prototype being unveiled at the APRS Audio/Visual trade exhibition in October 1986.

The Listen Up Player was released in 1996 by Audio Highway, an American company led by Nathan Schulhof. It could store up to an hour of music, but despite getting an award at CES 1997 only 25 copies were made.AT&T developed the FlashPAC digital audio player which initially used AT&T Perceptual Audio Coder (PAC)AAC.

The first production-volume portable digital audio player was The Audible Player (also known as MobilePlayer, or Digital Words To Go) from Audible.com available for sale in January 1998, for US$200. It only supported playback of digital audio in Audible"s proprietary, low-bitrate format which was developed for spoken word recordings. Capacity was limited to 4 MB of internal flash memory, or about 2 hours of play, using a custom rechargeable battery pack. The unit had no display and rudimentary controls.

MP3 was introduced as an audio coding standard in 1994. It was based on several audio data compression techniques, including the modified discrete cosine transform (MDCT), FFT and psychoacoustic methods.Saehan Information Systems,MPMan F10" player in parts of Asia in spring 1998.

MP3 became a popular standard format and as a result most digital audio players after this supported it and hence were often called "MP3 players". Noticeably, major technology companies did not catch on with the new technology, and instead young startups would come to dominate the early era of MP3 players. The Rio PMP300 from Diamond Multimedia was introduced in September 1998, a few months after the MPMan, and also featured a 32 MB storage capacity. It was a success during the holiday season, with sales exceeding expectations.RIAA soon filed a lawsuit alleging that the device abetted illegal copying of music, but Diamond won a legal victory on the shoulders of Rio line of players.

Other early MP3 portables include Sensory Science"s Rave MP2100, the I-Jam IJ-100, the Creative Labs Nomad and the RCA Lyra. These portables were small and light, but had only enough memory to hold around 7 to 20 songs at normal 128 kbit/s compression rates. They also used slower parallel port connections to transfer files from PC to player, necessary as most PCs then used the Windows 95 and NT operating systems, which did not have native support for USB connections. As more users migrated to Windows 98 by 2000, most players transitioned to USB. In 1999 the first hard drive based DAP using a 2.5" laptop drive was made, the Personal Jukebox (PJB-100) designed by Compaq and released by Hango Electronics Co with 4.8 GB storage, which held about 1,200 songs, and invented what would be called the jukebox segment of digital music portables.

Also at the end of 1999 the first in-dash MP3 player appeared. The Empeg Car and Rio Car (renamed after it was acquired by SONICblue and added to its Rio line of MP3 products) offered players in several capacities ranging from 5 to 28 GB. The unit didn"t catch on as SONICblue had hoped, though, and was discontinued in the fall of 2001.

For the next couple of years, there were particularly much output from South Korean companies, namely the startups iRiver (brand of Reigncom), Mpio (brand of DigitalWay) and Cowon. At its peak, these Korean makers held as much as 40% world market share in MP3 players.iPods - they were also overtaken by the South Korean giant Samsung Electronics by 2006.

Sony entered the digital audio player market in 1999 with the Vaio Music Clip and Memory Stick Walkman, however they were technically not MP3 players as it did not support the MP3 format but instead Sony"s own ATRAC format and WMA. The company"s first MP3-supporting Walkman player did not come until 2004.Memory Stick.

Designed by Samsung Electronics, the Samsung YEPP line were first released in 1999 with the aim of making the smallest music players on the market.Creative released the 6GB hard drive based Creative NOMAD Jukebox. The name borrowed the jukebox metaphor popularised by Remote Solution, also used by Archos. Later players in the Creative NOMAD range used microdrives rather than laptop drives. In October 2000, South Korean software company Cowon Systems released their first MP3 player, the CW100, under the brand name iAUDIO. Since then the company has released many different players. In December 2000, some months after the Creative"s NOMAD Jukebox, Archos released its Jukebox 6000 with a 6GB hard drive. Philips also released a player called the Rush.

While popularly being called MP3 players at the time, most players could play more than just the MP3 file format, for example Windows Media Audio (WMA), Advanced Audio Coding (AAC), Vorbis, FLAC, Speex and Ogg. Many MP3 players can encode directly to MP3 or other digital audio format directly from a line in audio signal (radio, voice, etc.). Devices such as CD players can be connected to the MP3 player (using the USB port) in order to directly play music from the memory of the player without the use of a computer.

Modular MP3 keydrive players are composed of two detachable parts: the head (or reader/writer) and the body (the memory). They can be independently obtained and upgradable (one can change the head or the body; i.e. to add more memory).

In 2002, Archos released the first "portable media player" (PMP), the Archos Jukebox Multimediajukebox, the AV300, with a 3.8" screen and a 20GB hard drive. In the same year, Toshiba released the first Gigabeat. In 2003, Dell launched a line of portable digital music players called Dell DJ. They were discontinued by 2006.

The name "MP4 player" was a marketing term for inexpensive portable media players, usually from little known or generic device manufacturers.misnomer, since most MP4 players through 2007 were incompatible with the MPEG-4 Part 14 or the .mp4 container format. Instead, the term refers to their ability to play more file types than just MP3. In this sense, in some markets like Brazil, any new function added to a given media player is followed by an increase in the number, for example an MP5 or MP12 Player,MPEG-4).

iriver of South Korea originally made portable CD players and then started making digital audio players and portable media players from 2002. Creative also introduced the ZEN line. Both of these attained high popularity in some regions.

In 2004, Microsoft attempted to take advantage of the growing PMP market by launching the Portable Media Center (PMC) platform. It was introduced at the 2004 Consumer Electronics Show with the announcement of the Zen Portable Media Center,Creative. The Microsoft Zune series would later be based on the Gigabeat S, one of the PMC-implemented players.

In May 2005, flash memory maker SanDisk entered the PMP market with the Sansa line of players, starting with the e100 series, and then following up with the m200 series, and c100 series.

In 2007, Apple introduced the iPod Touch, the first iPod with a multi-touch screen. Some similar products existed before such as the iriver clix in 2006. In South Korea, sales of MP3 players peaked in 2006, but started declining afterwards. This was driven partly by the launch of mobile television services (DMB), which along with increased demand of movies on the go led to a transition away from music-only players to PMPs.

European buying patterns differed; while Apple was in a particularly strong position in the United Kingdom, continental Western Europe generally preferred cheaper, often Chinese rebranded players under local brands such as Grundig.

Samsung SPH-M2100, the first mobile phone with built-in MP3 player was produced in South Korea in August 1999.Samsung SPH-M100 (UpRoar) launched in 2000 was the first mobile phone to have MP3 music capabilitiesiPhone. In 2007, the number of phones that could play media was over 1 billion.Sony Ericsson"s Walkman range or Nokia"s XpressMusic range, which have extra emphasis on music playback and typically have features such as dedicated music buttons.

In the EU, demand for MP3 players peaked in 2007 with 43.5 million devices sold totalling 3.8 billion euros. Both sales and revenue experienced a double-digit shrinkage for the first time in 2010.

PMPs are capable of playing digital audio, images, and/or video. Usually, a colour liquid crystal display (LCD) or organic light-emitting diode (OLED) screen is used as a display for PMPs that have a screen. Various players include the ability to record video, usually with the aid of optional accessories or cables, and audio, with a built-in microphone or from a line out cable or FM tuner. Some players include readers for memory cards, which are advertised to equip players with extra storage or transferring media. In some players, features of a personal organiser are emulated, or support for video games, like the iriver clix (through compatibility of Adobe Flash Lite) or the PlayStation Portable, is included. Only mid-range to high-end players support "savestating" for power-off (i.e. leaves off song/video in progress similar to tape-based media).

Nearly all playersWindows Media Audio (WMA), Advanced Audio Coding (AAC) and WAV. Some players are compatible with open-source formats like Ogg Vorbis and the Free Lossless Audio Codec (FLAC). Audio files purchased from online stores may include digital rights management (DRM) copy protection, which many modern players support.

The JPEG format is widely supported by players. Some players, like the iPod series, provide compatibility to display additional file formats like GIF, PNG, and TIFF, while others are bundled with conversion software.

Most newer players support the MPEG-4 Part 2 video format, and many other players are compatible with Windows Media Video (WMV) and AVI. Software included with the players may be able to convert video files into a compatible format.

Many players have a built-in electret microphone which allows recording. Usually recording quality is poor, suitable for speech but not music. There are also professional-quality recorders suitable for high-quality music recording with external microphones, at prices starting at a few hundred dollars.

Newer portable media players are now coming with Internet access via Wi-Fi. Examples of such devices are Android OS devices by various manufacturers, and iOS devices on Apple products like the iPhone, iPod Touch, and iPad. Internet access has even enabled people to use the Internet as an underlying communications layer for their choice of music for automated music randomisation services like Pandora, to on-demand video access (which also has music available) such as YouTube. This technology has enabled casual and hobbyist DJs to cue their tracks from a smaller package from an Internet connection, sometimes they will use two identical devices on a crossfade mixer. Many such devices also tend to be smartphones.

Many mobile digital media players have last position memory, in which when it is powered off, a user doesn"t have to worry about starting at the first track again, or even hearing repeats of others songs when a playlist, album, or whole library is cued for shuffle play, in which shuffle play is a common feature, too. Early playback devices to even remotely have "last position memory" that predated solid-state digital media playback devices were tape-based media, except this kind suffered from having to be "rewound", whereas disc-based media suffered from no native "last position memory", unless disc-players had their own last position memory. However, some models of solid-state flash memory (or hard drive ones with some moving parts) are somewhat the "best of both worlds" in the market.

There are also royalty free lossy formats like Vorbis for general music and Speex and Opus used for voice recordings. When "ripping" music from CDs, many people recommend the use of lossless audio formats to preserve the CD quality in audio files on a desktop, and to transcode the music to lossy compression formats when they are copied to a portable player.firmware; sometimes a firmware update adds more formats. MP3 and AAC are dominant formats,

PMPs were earlier packaged with an installation CD/DVD that inserts device drivers (and for some players, software that is capable of seamlessly transferring files between the player and the computer). For later players, however, these are usually available online via the manufacturers" websites, or increasingly natively recognised by the operating system through Universal Mass Storage (UMS) or Media Transfer Protocol (MTP).

As with DAPs, PMPs come in either flash or hard disk storage. Storage capacities have reached up to 64 GB for flash memory based PMPs, first reached by the 3rd Generation iPod Touch, and up to 1 TB for hard disk drive PMPs, first achieved by the Archos 5 Internet Tablet.

A number of players support memory card slots, including CompactFlash (CF), Secure Digital (SD), and Memory Sticks. They are used to directly transfer content from external devices, and expand the storage capacity of PMPs.

A standard PMP uses a 5-way D-pad to navigate. Many alternatives have been used, most notably the wheel and touch mechanisms seen on players from the iPod and Sansa series. Another popular mechanism is the swipe-pad, or "squircle", first seen on the Zune. Additional buttons are commonly seen for features such as volume control.

Sizes range all the way up to 7 inches (18 cm). Resolutions also vary, going up to WVGA. Most screens come with a colour depth of 16-bit, but higher quality video-oriented devices may range all the way to 24-bit, otherwise known as true colour, with the ability to display 16.7 million distinct colours. Screens commonly have a matte finish but may also come in glossy to increase colour intensity and contrast. More and more devices are now also coming with touch screen as a form of primary or alternate input. This can be for convenience and/or aesthetic purposes. Certain devices, on the other hand, have no screen whatsoever, reducing costs at the expense of ease of browsing through the media library.

Some portable media players include a radio receiver, most frequently receiving FM. Features for receiving signals from FM stations on MP3 players are common on more premium models.

Some portable media players have recently added features such as simple camera, built-in game emulation (playing Nintendo Entertainment System or other game formats from ROM images) and simple text readers and editors. Newer PMPs have been able to tell time, and even automatically adjust time according to radio reception, and some devices like the 6th-gen iPod Nano even have wristwatch bands available.

Modern MP4 players can play video in a multitude of video formats without the need to pre-convert them or downsize them prior to playing them. Some MP4 Players possess USB ports, to allow users to connect it to a personal computer to sideload files. Some models also have memory card slots to expand the memory of the player instead of storing files in the built-in memory.

The Iriver SPINN portable media player features Samsung storage and a Telechips processor. It also features both touchscreen and a clickwheel mechanism for navigation. The SPINN implements haptic feedback by vibrating with user input. Additional hardware capabilities enable it to decode the MPEG-4 Part 2 format and play back audio using SRS WOW.

Some players, like the Onda VX979+, have started to use chipsets from Ingenic, which are capable of supporting RealNetworks"s video formats.SigmaTel-based technology are compatible with SMV (SigmaTel Video).

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 the compressed file into an analogue sound signal. During playback, audio files are read from storage into a RAM based memory buffer, and then streamed through an audio codec to produce decoded PCM audio. Typically audio formats decode at double to more than 20 times real speed on portable electronic processors,DAC can play it. To save power, portable devices may spend much or nearly all of their time in a low power idle state while waiting for the DAC to deplete the output PCM buffer before briefly powering up to decode additional audio.

Nearly all DAPs consists of some kind of display screen, although there are exceptions, such as the iPod Shuffle, and a set of controls with which the user can browse through the library of music contained in the device, select a track, and play it back. The display, if the unit even has one, can be anything from a simple one or two line monochrome LCD display, similar to what are found on typical pocket calculators, to large, high-resolution, full-color displays capable of displaying photographs or viewing video content on. The controls can range anywhere from the simple buttons as are found on most typical CD players, such as for skipping through tracks or stopping/starting playback to full touch-screen controls, such as that found on the iPod Touch or the Zune HD. One of the more common methods of control is some type of the scroll wheel with associated buttons. This method of control was first introduced with the Apple iPod and many other manufacturers have created variants of this control scheme for their respective devices.

Content can also be obtained and placed on some DAPs, such as the iPod Touch or Zune HD by allowing access to a "store" or "marketplace", most notably the iTunes Store or Zune Marketplace, from which content, such as music and video, and even games, can be purchased and downloaded directly to the device.

A growing number of portable media players are including audio processing chips that allow digital effects like 3D audio effects, dynamic range compression and equalisation of the frequency response.Fletcher–Munson curves. Some media players are used with Noise-cancelling headphones that use Active noise reduction to remove background noise.

Natural mode is characterised by subjective effect of balance of different frequency sounds, regardless of level of distortion, appearing in the reproduction device. It is also regardless of personal user"s ability to perceive specific sound frequencies (excluding obvious hearing loss). The natural effect is obtained due to special sound processing algorithm (i.e. "formula of subjective equalisation of frequency-response function"). Its principle is to assess frequency response function (FRF) of mediaplayer or any other sound reproduction device, in accordance with audibility threshold in silence (subjective for each person),in situ audiometry, used in medicine to prescribe a hearing aid. However, the results of test may be used to a limited extent as far as FRF of sound devices depends on reproduction volume. It means correction coefficient should be determined several times – for various signal strengths, which is not a particular problem from a practical standpoint.

Although these issues are not 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).

The Recording Industry Association of America (RIAA) filed a lawsuit in late 1998 against Diamond Multimedia for its Rio players,Sony Corp. v. Universal City Studios case and DAPs were legally ruled as electronic devices.

According to the Scientific Committee on Emerging and Newly Identified Health Risks, the risk of hearing damage from digital audio players depends on both sound level and listening time. The listening habits of most users are unlikely to cause hearing loss, but some people are putting their hearing at risk, because they set the volume control very high or listen to music at high levels for many hours per day. Such listening habits may result in temporary or permanent hearing loss, tinnitus, and difficulties understanding speech in noisy environments.

The World Health Organization warns that increasing use of headphones and earphones puts 1.1 billion teenagers and young adults at risk of hearing loss due to unsafe use of personal audio devices.smartphones and personal media players are sold with earphones that do a poor job of blocking ambient noise, leading some users to turn up the volume to the maximum level to drown out street noise.

A study by the National Institute for Occupational Safety & Health found that employees at bars, nightclubs or other music venues were exposed to noise levels above the internationally recommended limits of 82–85 dB(A per eight hours. This growing phenomena has led to the coining of the term music-induced hearing loss, which includes hearing loss as a result of overexposure to music on personal media players.

Some MP3 players have electromagnet transmitters, as well as receivers. Many MP3 players have built-in FM radios, but FM transmitters aren"t usually built-in due to liability of transmitter feedback from simultaneous transmission and reception of FM. Also, certain features like Wi-Fi and Bluetooth can interfere with professional-grade communications systems such as aircraft at airports.

"Words to Avoid (or Use with Care) Because They Are Loaded or Confusing". Free Software Foundation, Inc. Archived from the original on 3 June 2013. Retrieved 8 July 2013. Most support the patented MP3 codec, but not all. To call such players "MP3 players" is not only confusing,... We suggest the terms "digital audio player," or simply "audio player" if context permits.

"Portable media players give North Koreans an illicit window on the world". The Guardian. 28 March 2015. Archived from the original on 6 April 2015. Retrieved 9 April 2015.

"Diamond Multimedia Announces Rio PMP300 Portable MP3 Music Player" (Press release). Harmony Central. 14 September 1998. Archived from the original on 6 December 2007. Retrieved 5 December 2007.

Collecting MP3 Portables – Part I, Part II and Part III – Richard Menta"s three-part article covers the first digital audio players on the market with pictures of each player.

Newest Android 10.0 2 din Car Stereo Radio 7"" Autoradio GPS WIFI Car MP5 Player with Dual USB Port FM for Golf Polo Tiguan Passat b7 b6 SEAT leon Skoda Octavia[Support Phone Charging]

MP3 player with Bluetooth 5.0-This device is equipped with Bluetooth 5.0 chip and AAC audio decoding, which makes compatibility & stability stronger, mp3 Bluetooth player, belongs to the unilateral transmitter, can be easily connected, Bluetooth headset, Bluetooth speaker, (Cannot do Bluetooth data transmission and connection to mobile phones and computers)

Full-screen touch mp3 playerAmazing audio-visual enjoyment - the device is not only an mp3 digital music player but also an MP4 player, it uses a 2.4-inch touch screen with a resolution of 240*320, clear vision, easy-to-use sliding touch screen, to make your operation smoother, (video converter editing is required to transfer video)

32GB mp3 playerBuilt-in 32GB space can store up to 8000 songs, in addition, you can expand the external memory up to 128GB through the micro SD card slot. Compatible with most music formats, MP3/WMA/APE/FLAC/WAV/DRM/ACELP, etc., and provides categories such as title, artist, album, etc.

Long battery life - This M4&MP3 player has a built-in 500mAh lithium-ion battery and a low-power solution that allows for approximately 48 hours of continuous playback on wired earbuds and approximately 7.5 hours of FM radio recording.

Exquisite gift An mp3 music player suitable for children, the elderly, wife and husband, it is small and portable, supports FM radio, recording, e-book reading, video playback, picture browsing, built-in speakers, is an all-in-one MP3 players are ideal for sports, fitness, running, travel, and more.