【 Weak current College 】 comprehensive anatomical four mainstream audio technology

We recognized MP3 decoding chip anything is, of course, the Netherlands, Philips, Sigmatel United States Korea Telechips and China Juli (Actions), the different qualities and price makes a different sound quality, I just need to introduce it, not only chip analysis of other people's posts I write more than better, we can find, however, do you know what is an audio technology? it's technology brings the world what MP3 music revolution? The sound quality is a music lover's first choice! SRS technologies SRS (Sound Retrieval System, non-hardware 3D sound field) WOW technology, it has been widely used in high-end audio equipment and AV equipment features of the RSR in .MP3 is through the support of the function of the chip simulation of a three-dimensional sound field, let people confront Wonderland feeling. meizu's x 2 and E2, Ang da VX707, VX303 are first SRS audio MP3 product support, and are using the 3520 chip, 350X chip does not have SRS. on the market, the sales of MP3 players with SRS sound effects, not the entire SRS sound effects, and is one of: SRS WOW, SRS TruBass and by, the FOCUS is composed. WOW: can break through the small speakers and headphones, inherent limitations by providing 3D audio image in the horizontal and vertical orientation on the extended sound make it beyond the capacity of the equipment itself. In this way, small audio equipment, TV, wireless, and personal/portable products of the manufacturer do not increase the speaker size can significantly improve their product's sound effects. Particularly in areas such as MP3, WMA and audio CD these digital compression makes sense of space is greatly weakened by the mono or stereo audio format, the cosmetic effect WOW. SRS: SRS can recover from traditional recording and playback devices shrouding of spatial information. Through the stereo signal into multiple parts, which can be detached and recover space signal or the original recording of environmental information. And put them in the direct voice of normal space. These spatial signal is amplitude-frequency response correction patent curve handles. In this way, the reproduction of the sound is very close to the artist originally envisaged in the field. SRS do not have the so-called best listening position (sweet spot), therefore, music and sounds like filled the room, so that the listener completely surrounded in three-dimensional sound. TruBass, SRS TruBass is a patented technology, the use of human sound psychology patent technology to enhance the bass performance. These technologies make use of the original audio source in the reproduction of low frequency information of harmony. The restoration of basic low frequency tone feeling – even if it is lower than the speakers and headphones for the low-frequency limit. So you can render the TruBass than small, medium, and large speakers and headphones for the low-frequency limit is also low octave, and the deep rich sense of hearing. FOCUS: FOCUS by upgrading the sound field to generate a sense of the height of the sound image. When combined with the SRS 3D, FOCUS will enlarge the sound image, producing a very high, the best listening position (sweet spot) broad sound field. In addition, the FOCUS can improve high frequency permeability degree let listeners immersion. The speaker is lower than the sound field of products, such as television or fixed within the projection in the door of the car speakers, FOCUS will adjust the available electronics method again sound field positioning in the listeners the best location on the front. China Juli and United States SRS Labs company cooperation developed with SRS WOS technology sound MP3 master chip PMA300 most pathetic China Juli, in fact, as MP3 chip manufacture is already a good job, now missing is technology, China started slow than others, now to catch up to this stage is also quite remarkable, wait and see, Chinese Juli in the future must have it's brilliant, support for Chinese goods, Oh. BBE technology BBE is called music, BBE symbol are trademarks of audio sector superior quality marks .BBE technology to ordinary electronic device (on merit) restore more realistic sound, namely through the audio signal in the circuit, offset compensation, making the treated sound clearer Audio brand by the end of Korea .2004 officially into China market, to occupy the market advantage BBE technology and adopt this technology mainly MP3 product. Similarly, iAudio with BBE sound effects are not all the BBE and the BBE is the BBE, Mach3Bass, BBE MP. BBE system has two basic functions, one of which is the regulation of low, medium and high frequency phase relationships. The second function is enhanced by high-frequency and low frequency signals. In addition, BBE with muting function. BBE circuit internal equipped with noise gate, and high-cut filter, can enter the stray signal attenuation. BBE Mach3Bass used electronics extend specific loudspeakers bass response and accurate adjustment needs of low-frequency limit. The world famous BBE processing phase error correction technology, BBE Mach3Bass provides than standard bass boost level deeper and more dense, more precise bass frequencies. BBE Mach3Bass doesn't affect middle and low sound, otherwise they will be in low and middle band produces opacification and change roles voice. BBE MP (minimized number of nonlinearity saturated) technology through digital compression recovery and enhanced harmonic losses, thereby improving the digital compression of audio (e.g. MP3) audio. BBE MP recover from the original data and thus sound effectively restore sound of warmth, delicate and subtle. BBE MP may sound level average raise three decibels, while maintaining peak between swing unchanged. Because of the sound output higher than 3 dB signal to noise ratio also improved accordingly. Through the above comparison of technical description, although can be found that can enhance the bass, but the actual impact on the music is completely different, SRS WOW brings the music of changes is in the sense of space is sounds feel sound larger, and BBE enhance audio clarity, the entire sound fieldStrength on a bench. For example, on mystery of iAudio I5 iAudio U3 (about prices in the $ 1500 512M above), of course, price is not cheap, close to $ level allow consumers to catch up. LifeVibes technology which is developed with Philips, it can through the optimization algorithm to restore and improve various compressed music sound loss, and to enhance the quality and ease of use headset ear fatigue, is designed for digital music product development of memory usage is very low a professional audio technology-this technology has been applied to PNX0102 chip, and was the first use of meizu E3-this is the personal E3, now also a meizu X3, low price of $ 100, and superior price/performance ratio, the more attractive our eyeballs Oh. DNSe technology Samsung T8 with DNSe (Digital Natural Sound Engine, digital natural sound engine) sound technology (sounds quite badly) the technology was applied to a Samsung home theater system 5.1 sound system, now expanded to an MP3 player, portable phonograph on. in coordination with, it brings more realistic sense now, and increased stress, eliminates the common product in common explosion sound, Samsung is integrated into the DNSe YP-T8 unusual sound effects, this is also the charm of Samsung. Alice and the future of all T-series core to Samsung, the intent behind the transition? The newly launched two MP3 Lanmo V10 and iAudio U3 are TELCHIPS top chip TCC770 chip (V10 is reportedly TCC76 chip), with both the SRS WOW, BBE, Mach3Bass, MP Enhance, 3D Surround and sound technology-not all chips have more technical, and four categories of technology is good or bad is there as well as the above, we heard the sound didn't know the. Moreover, the distinction between USB2.0 interface also allows us to learn a lot of knowledge on the USB1.1 interface now MP3 has become less and less, are basically 2.0 interface, but the market is divided into USB2.0 full speed USB2.0 interface (USB2.0F) and high speed USB2.0 (USB2.0H), both performance varies widely. USB2.0 full speed (12Mbps) relative USB1.1 little rate increase, while high speed USB2.0 (480Mbps) is the standard we can understand the decoding chip to distinguish high speed and full speed USB2.0 interface, such as Philips PNX0102 chip, SigmaTel 3520, TeleChips TCC76X series chip support USB2.0 high speed interface, on the contrary, the corresponding Philips PNX0101, SigmaTel 350X series chip, TeleChips TCC72X series chip can only be full speed USB2.0 interface. Added: sound effects cannot fundamentally improve the sound quality, only better play music effects, ensure the integrity of the sound, but the sound quality depends on the MP3 music file itself, is an audio file with a loss, is not negative facts, but also makes the development of the MP3.