MP3 is actually a small, functional computer. In MP3 small fuselage, have MP3 memory (memory card), MP3 display (LCD display), MP3 Central processing Unit [MCU (microcontroller) or MP3 decoding DSP (digital signal processor), etc.
MP3 's function is more and more, it and PDA, mobile phone, MP3 like the development of multi-function, as far as possible to absorb other products, in order to increase the product selling point. When the purchase should be on demand, do not blindly pursue multi-function, function more expensive, and buy back, you will find that many are not with the use of.
Removable hard disk: The computer directly recognizes the MP3 as a removable memory, MP3 which can store all kinds of files except music.
Firmware Upgrade: To resolve the release of the product after the knowledge of software, hardware failures, add new features.
Folder browsing: Storing different songs by folder, and playing in this unit, without all MP3 in the same directory, improve ease of management.
Multi-language: Mainly support Chinese Simplified, Chinese Traditional, Korean, Japanese, English, some models even have 26 languages.
-Repetition: Read a paragraph of content repeatedly, easy to learn a foreign language.
Text reading: Usually only large screen MP3 have this feature, MP3 can be used as an e-book, some products also support the text format of the PDA. If the firmware capacity is sufficient, you can also download various Chinese and foreign text bodies. Automatic scroll function is also very useful, MP3 automatic up or down the background lights when the page is bright, not only to save their own page of the trouble, but also completely make up for the shortcomings of the small screen. Can even read while listening to MP3, as the function of a simplified PDA.
TTS (text-to-speech, text speech aloud), the text directly with MP3 sound conversion to text, MP3 the machine sound and rhythm change, it sounds strange, but very suitable for lazy people don't want to read.
Dictionary: English-Chinese dictionary, used as translation, note that MP3 control keys are limited, and it is not easy to enter English words.
Automatic recording function: Through SAD (sound activity detector, voice activated scout), can set silent time, only when there is sound recording, not only save memory space, but also save time in playback.
Remote recording: Use AGC (Auto gain control, automatic gain controls), MP3 adjustable sensitivity and recording quality (low, heavy, high), suitable for long-distance external recording, such as: meeting.
FM: Listen to the radio, many products can preset a number of channels, do not need to adjust each.
FM recording: Switching the contents of the radio to MP3, some products and FM recording! You can enter the day of the week, and how many Hertz channels to start recording, MP3 this is not a favorite radio program or foreign language learning programs will not be missed because of the busy, can be recorded slowly listening.
EQ settings: This is the setting for sound effects. Almost every product will have several preset sound settings, such as ordinary, rock, jazz, pop, classical. Some MP3 also support custom sound settings that users can customize according to their preferences. But without the LCD display of the products, these EQ settings are almost non-existent, only one of its own curing sound mode. This is a bit of a cruel way for some friends who are particularly loyal to the effects of personal music.
Direct record: The external sound source (cd/md Walkman, home Audio, computer) coding compressed into music files, directly exist on the MP3. Because the MP3 machine built-in coding chip performance is poor, MP3 the sound quality is inferior to the computer compressed music file.
Clock: The time setting can enter the month day, cent, and can be used as a watch.
Timer shutdown: Can set time between the 0~180 minutes of the timer shutdown, of course, can also set the $number between the automatic shutdown, the most convenient night to sleep before listening to songs.
Photo browser: Not only can browse photos taken down, MP3 but also to enjoy the computer download pictures. Because the screen of MP3 is small, the resolution is relatively high to see the picture will feel a beautiful, but most of the screen has a proportional limit, MP3 the proportion of the wrong will appear deformation and not normal display phenomenon.
Digital camera: As in the early days of the mobile phone camera, using 10.3 million pixel $number. 5 "CMOS lens, the main disadvantage of CMOS is the brightness induction slow, so in the light of a sufficient environment to shoot out the effect is better. The biggest advantage of CMOS is the small size, the most suitable for MP3 Walkman. The camera itself has a variety of functions, can be digital zoom, a variety of effects shooting.