Eight indexes MP3 quality stand for

1.decoder chip and auxiliary decoder chip

Although the name is MP3 walkman, but, in fact, at present advanced audio format is not only MP3 a, and VQF, RA and WMA, etc. Among them in sound quality VQF on one slightly-MP3, and compression ratio is equal with MP3 players, so very much the user's awards. But RA and WMA compression on all the far beyond MP3, but the sound quality loss also is not very big, especially WMA, the details of the deal with even more than MP3. Can say, support WMA and RA format, means that the flash memory space virtually expanded 2 ~ 4 times. As for whether MP3 player that can support these audio format, basically see decoder chip and auxiliary decoder chip ability. Generally speaking, a piece of support WMA decoding chips are better than simply MP3 decoding chips your many, this also is now 500 yuan of the following MP3 walkman don't support WMA one reason for this.

2 quality performance

Decoder chip will also has greater effect on sound quality. If you simply think cheap MP3 walkman with a pair of high-grade headset can make up for sound quality defects, it would be a mistake. If you will be the first generation of MP3 software MP3Player and now the latest version of a comparison between Winamp3.0, would be very strongly feel the difference between them. In fact, not just the MP3 decoding, now most MP3 encoder are made a lot of optimization (such as the most popular LAME), if use performance is poor decoder, so this time the optimization of the advanced encoder work will suffer. For a variety of reasons, many cheap MP3 decoders are using a few years ago inventory of products, it is therefore not in this respect to provide high quality guarantee. Relative to character, 600 yuan of above of high-end MP3 player will do much better in this respect.

Because in the choose and buy when the MP3 player is not open the enclosure to view may chip, therefore suggest that we take a pair of high-end headphones, to find a quiet place slowly audition. In addition, the contrast of different price and brand product will have a more profound impression.

3.The flash memory size MP3 player for it is quite important. For assembling an MP3 player, flash memory costs accounted for nearly half. Generally speaking, tie-in 128 B play flash from only 32 MB cache than assembly model on your 500 yuan or so, and this is more reasonable, for a common 128 MB of flash memory in the sale price 500 yuan. More flash memory space means that can hold more music. When we travel, always hope to carry songs jumped over more more, then more big flash player assembly will make us feel ease.

In addition to the flash memory capacity, flash memory type also is worth our concern. SmartMedia's slightly bigger, but the cost is not high, low price products for use. Relative to character, the use of MMC/SD flash card MP3 player less, but MMC/SD flash card in volume, power consumption, etc are certain advantages, belongs to the noble products. As for MemoryStick, nature is SONY MP3 player, the patent. In addition, the miniature hard disk and mini discs can also act as memory.

4 LCD screen and wire control

LCD display screen for MP3 player almost is necessary for the user, and then allow more clearly understand the current state of work, and at the same time through to MP3 files in the Tag information to read that singer, album, length, and other important information. It is important to note, however, the partial products may not display the LCD screen all Angle Chinese. In addition to conventional liquid crystal display (LCD), function also is very useful backlighting. In dark environment, backlit LCD screen not only appear very beautiful, to smooth the operation is a lot of good.

Also, wire control is also a function of complete an indispensable part of the MP3 player. If lack of wire control, so the user to MP3 walkman in working with would be very inconvenient, especially in the outdoor environment, use this line of control friends could really feel. In addition, wire control or decoration MP3 player window, after all, a lot of people like the MP3 walkman on the bag, this time line is the only thing you can control "show" things.

Although the name is MP3 walkman, but, in fact, at present advanced audio format is not only MP3 a, and VQF, RA and WMA, etc. Among them in sound quality VQF on one slightly-MP3, and compression ratio is equal with MP3 players, so very much the user's awards. But RA and WMA compression on all the far beyond MP3, but the sound quality loss also is not very big, especially WMA, the details of the deal with even more than MP3. Can say, support WMA and RA format, means that the flash memory space virtually expanded 2 ~ 4 times. As for whether MP3 player that can support these audio format, basically see decoder chip and auxiliary decoder chip ability. Generally speaking, a piece of support WMA decoding chips are better than simply MP3 decoding chips your many, this also is now 500 yuan of the following MP3 walkman don't support WMA one reason for this.

5 save electricity ability

The power consumption has been quite a MP3 player, but many cheap products are more amazing. In fact, the MP3 player flash memory chip, decoding chips are large power consumption, if producers choose do not have province electricity function of the product, so the user of the battery use time will greatly shorten the frequently, almost killed we are less charging interest. Generally speaking, we ask MP3 player to the actual continuous play time more than six hours, or in the daily use will very inconvenience. In the battery on collocation, it is necessary to pay attention a. Most of the MP3 player using AA battery, which generates the kind of investment is also late cannot be ignored. Although now nimh battery technology had great progress, but in time, life, and volume of charging in such aspects as lithium ion battery and has the very big disparity. Relative to character, high-end brand MP3 walkman the lithium ion battery is very strong, is worth to recommend.

6 sound equalizer

In the appreciation of music, which we ask is not only high quality quality, move feeling of sound also indispensable, this itself is two different sides. Generally speaking, almost all the MP3 players all provide at least three sound equalizer, but the effect it will make a great difference. If not handled properly, so this function is likely eroded, for those high-grade products, heavy bass or popular music sound should have obvious effect.

7 add function

In order to make our products more competitive, many factories are for MP3 player joined the various additional functions, such as FM radio radio, the recording, mobile storage etc, and valuable is that manufacturers general will not because these add functions and greatly improved selling price of the product, because that will only reduce the competitiveness of the products in the market.

For FM radio radio, many users are very like. After all, the radio music resources more rich. But our view is that, for the function need not exacting, if only to it and eliminated the excellent product, so there is some put the cart before the horse, the loss outweights the gain. More worthy of our attention should be recording function, part of the product can even support WMA recording coding and noise filter, recording effect is very good, but the low end products generally can only support PCM format, the data is bigger, so recording time is not long.

8 process materials and visual design

As a kind of fashion products, MP3 walkman never fails to demonstrate your personal taste, this also is a lot of the concerns of the user. By contrast, those who edges clear, exterior modelling elegant product is very traditional by man's favorite. At present many domestic manufacturers products in shape design is very bold, sports car, lucky egg, grotesque appearance can attract consumers of vision.

If the appearance of the product design show individual character, then process the materials contain a inner work force. Metal shell products not only excellent resistance to cast ability, and good sense, general won't because of long time of use and fade. Even if is to use plastic shell products, should also points clear is high strength of ABS plastic or ordinary plastic.