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.
