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How to Select Mp3-player FOR THE JOURNEYS
How to Select Mp3-player FOR THE JOURNEYS
In the journey it does not be desirable to part from the dear music. Once cassette tape recorders were taken for the journey, D- record players then replaced them. The dimensions of portable audio always decreased; however, together with small player it was necessary to drag large bag with the disks or the cassettes. And only the appearance of technology MP3 made it possible to place volumetric sound-tape library on one CD, miniature card of memory or memory unit, which is been located inside the housing of player.
Actually, MP3-players is very convenient in order not to part from the music outdoors. But one matter - to listen to MP3-pleer on the jaunt on the adjacent park, and entirely another matter - in the distant journey or in the tourist march: far from all models will approach for this. In this article we will describe how is correct to select MP3-pleer for the tourist trip. How much music will be placed?
The first question, which will have to solve for itself, which the general duration of the compositions, which you want to listen to in the road. Then it is necessary to select the minimum volume of information, which can be placed on the carrier.
The volume of information, which is been perceivable on the carrier for the unit of time, for MP3- file is called bit rate. The higher bit rate, the higher the quality of record. For the record of music with the acceptable quality are used bit rate from 96 to 320 kbit/s. In the road the user does not usually receive the fine details of sonic picture - they simply are disguised with surrounding noise.
Therefore for the comfortable hearing it will be completely sufficient bit rate 128 kbit/s. In order to transfer this value in kbyte/s, it is necessary to divide this number into 8 - we obtain 16 kbyte/s, or 960 kbayt/min. After rounding off this number, let us formulate the simple rule: 1 min. music correspond to approximately 1 mb. of the memory of player.
Selection of the carrier
Most main characteristic MP3-pleera is the type of the data carrier. Many other properties of device depend on this parameter. CD. To usual CD are written the files in size MP3. since to this disk it is placed to 800 mb. of information, on it it is possible to preserve to 13 it is hour music.
Advantage MP3 D -pleerov is the cheapness of equipment and carrier. Moreover they know how to reproduce CD, and some models - videodisks of sizes Video CD and even DivX. But in this case the data of devices have it is many deficiencies. The construction of this playera is insufficiently well protected from the dust, the moisture and the mechanical actions. The selection of license disks in size MP3 CD in the stores is sufficiently scant. It is necessary either very to write CD with collection MP3- it is file, or to buy pirate publication. Finally, on the strength of the fact that diameter CD is 13 cm, player into the pocket you will not assume, it is necessary to bear it on the belt or in the bag. There are, true, models, which one can work with CD by the diameter of 8 cm (such disks can be written in the overwhelming majority of computer drives), they completely compact. But because of a comparatively small volume of information, which will be succeeded in writing down to 8- centimeter CD, these players did not receive wide acceptance.
For journeys MP3 D ?player there is sense to buy only if in you already is the large library MP3- it is file, recorded on CD one additional argument - possibility immediately to begin to listen to the disk purchased in the trip.
MD. To the wide acceptance rerecorded CD company Sony proposed the size of the optical carrier Mini-Disc (MD). Its advantages were small sizes (three-inch computer to diskette) and possibility of the repeated retention of information. On MD it was originally placed by 160 mb. of data. Then the traditional models Md -players were practically extruded on market MP3-pleerami. Sony attempted to return the last popularity MD, after letting out the rule of players NetMD, to which it is possible to copy from the computer of record in size MP3. was recently represented the new size Hi-MD, which with the same sizes contains into itself to 1 Gb of information.
To MD record it is conducted in the "firm" sizes of the compression of company Sony - ATRAC 3 or ATRAC 3 plus. This is caused by the fact that the family of these sizes possesses the increased protection from pirate copying, and Sony is occupied, besides the production of equipment, by the still and sound-recording, and cinematography business. Accordingly with copying of file in size MP3 on MD occurs its re encoding in ATRAC. In this case the program, which accomplishes re encoding, can refuse to user, if it reveals by any means that the file is pirate.
Smaller sizes, but nevertheless these devices sufficiently large and not into any pocket will be placed in comparison with MP3 by D- models in Md -payers. Md -player have not bad protection from the mechanical action. Moreover they are frequently supplied with the function of record from the external sound source and even from the built-in microphone. However, albums on MD in Russia and many other countries very rarely are encountered in sale.
Thus, to take with itself into journey Md -player it is possible to recommend perhaps that to the devoted judges of production Sony.
Hard disk. The prime advantage of this carrier - imposing storage capacity with the small sizes. Moreover in comparison with CD hard disk has considerably larger speed, which makes it possible without the problems to find necessary composition. Since in English the accumulator on the hard disk is called Hard Disk Drive, respectively MP3-pleery, in which it is used, there are HDD-players.
Are distinguished two forms HDD-players - on the usual hard disk and on accumulator Microdrive. The usual hard disks, utilized in MP3-pleerax, have a volume of order of tens of gigabyte, which makes it possible to store on them hundred it is hour musical records. Most known model of such type - Apple iPod. Accumulators Microdrive are subminiature HDD with capacity to 4 Gb. MP3-pleery on basis of Microdrive in the overall sizes approach flesh-players, with which the discussion will deal further. Examples of miniature Microdrive- models are Creative MuVo2 and Philips GoGear HDD070.
In the last time the producers of HDD mastered the release of the products, which have small sizes, but in this case the storage capacity in them composes several ten gigabyte. For example, MP3-pleer Archos Gmini XS200 according to the size not considerably more than flesh-players, but in this case the storage capacity on its HDDr is 20 Gb.
The reliability of contemporary hard disks is sufficiently high and furthermore producers HDD-player take special measures so that the hard disk inside player would be protected from the mechanical actions. On the assertions of developers, HDD-pleery normally itself feel during the shaking and even they are capable of maintaining sufficiently strong blows. The increased energy consumption is a drawback in the hard disks. Specialists do entire possible that HDD-player they would work from one battery charging not less than flesh-players. The storage batteries of great capacity are used for this.
In many countries HDD-p players they are the most popular form MP3-pleerov. In our country an increase in their popularity is held in control by relatively high prices. For journeys HDD-player it is very successful selection.
Fl3w- memory. As far as flesh-players are concerned, in this case data are placed into the crystal of semiconductor memory. A difference in the fl3w- memory from the simply semiconductor in the fact that the information remains with turning off of the power source. This is the most compact carrier. The models executed on its basis conquered now enormous popularity.
Are distinguished players with the built-in and change memory. The advantage of the first are small overall sizes and relatively low cost. But if the larger storage capacity is required, then it is necessary to buy new model. In players, capable of working with the change maps of memory, this problem is solved by replacing the card. For example, in Panasonic Sv-sd85gc are used the maps of the memory of size SD. to this model it is applied the map of memory 128 mb., which is completely sufficient for the jaunt around the city. But for the distant trip it is better to purchase the card of larger volume. In principle, it is possible to write down the collection of songs on several maps of memory and to then change them, as if CD some flesh-players with the change maps of memory, for example Philips Rush SA238, in addition to them usually have still and built-in memory.
Flesh-players are most resistant to the mechanical actions. The majority of the sport models MP3-pleerov is done precisely on the basis of fl3w- memory.
To deficiencies in flesh-players can be attributed the small storage capacity. The built-in memory in serially produced players does not usually exceed 1 Gb. The maps of memory, which are encountered in wide sale, have a volume to 4 Gb. However, it is necessary to have in the form that for players with the change memory there are limitations to the maximum volume of the utilized map, and this limitation sometimes is less than the value indicated.
Flesh-player is the successful solution for the amateurs of journeys. For the same, who prefers complex tourist marches, best anything will approach the sport models of flesh-players, which possess the increased shockproof quality, protected from the dust and the moisture.
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