【 Weak current College 】 what is BBE is the sound quality of the King? (A)---Power By 【 China power house network 】

Light look at BBE and BBE now is a hot MP3, then, in the end he was holy? if you want to know what BBE, you can see all who use BBE, BBE websites Announces consumer electronic product manufacturers in the BBE technology-authorized users.
Oh, that is acquaintance, personal electronic consumer industry giants here! look, a professional manufacturer I-Audio mp3, aioudi into China, the largest advertising is BBE sound bright spots! it can be said that this, without exaggeration or proud to see other vendors, those around in this industry who for many years, casual is a classic. So BBE technology is introduced into China by I-Audio? the answer is no. Who or what is above, in its consumer electronic products, mainly for home theater to introduce this technology. Know why these manufacturers products expensive, you also have the patent royalties. But we are concerned about this technique before, China manufacturers, like TCL, Skyworth, new branch. 　　CHANGHONG also introduced ... ... .... 　　BBE used in MP3 on problem has come, these companies do not appear in front we see those authorized trademark? then how did they get it, now we has responded to the general trend of the WTO, the respect for intellectual property rights. Maybe, this remark also revealed a sad reality "but unfortunately, due to the Chinese on the intellectual property aspects of distrust, BBE Sound is still not Chinese companies authorized to direct algorithm, therefore, at present, China's enterprises are mostly through the purchase of third-party countries chip get indirect BBE Sound. "By EasyDigi then we can see a more frightening reality: we see those horrible names don't say I still throw off their ambition, but look at those trademarks, you can see, the Japanese manufacturer just poked our on the DVD, and they don't have the same knife behind, at this time of the TV. Not alarmist, if once, manufacturers working together to cut domestic TV's BBE chip suppliers, then, to the price war is good for China manufacturers will have to face the terrible situation, they will lose a magnificent sound-effect
Fruit, a disadvantage of the competition, will have to accept a higher offer. Domestic manufacturers of so-called now pursue technology leadership levels do not know, this is only the BBE, is a vulnerability. Now Chinese TV has defeated the United States, the European market has begun to shrink. 　　China TV sky, the clouds become increasingly heavy. Back to MP3 on the topic, we see the first picture of the two trademarks: iAudio 4 Samsung YP-520 Yes, they are the IAUDIO and SAMSUNG, BBE authorization members, BBE Sound company has been for BBE technology has a very strict quality control, in short, although the BBE technology licensing costs are very low, but want to get authorization is not an easy task. By the first will be sent to the cooperative company's strength, recognized until after the authorization to BBE, use BBE technology product design process, BBE Sound company will join in on the sound design, in the final sound recognition, product can raise the trademarks of BBE Sound. 　　It is such a strict operational modalities for BBE symbol trademarks into audio sector marks of superb quality. BBE speech processing technology works to facilitate understanding BBE speech processing technology works, imagine the speaker's features and our expectations. Speakers are one of the most important feature is the ability to copy a transient signal, the signal is the sound start short bursts of high energy, next, transient signal would evolve into harmonic. 　　It is these transient signal and harmonic have different amplitude and phase relationship for each song has a unique color and features. On the transient signal and harmonic phase of amplitude or carry out any changes will make the sound distortion. 　　If a substantial change in the sound signal of transient response, you have the potential to beat cymbal sound sounds like the sound of the automobile collision; Similarly, if you change the amplitude of the vertical flute tones or phase relationship that might make it sound more like a flute, or like the oboe, France. We all know, listen to music, all the treble and bass reaches the human ear, and they are musical out is maintained a consistent. We enjoy music at the scene, all of the treble and bass is fully pressed instruments look into our ears. If you leave the concert recorded, and play in loudhailer systems, speakers will generate frequency dependent phase shift. 　　As the signal frequency increases, the speaker of the coil inductor produces more and more high impedance, resulting in a delay, but through the amplifier replay live recordings will produce the sound frequency and phase changes in people's ears, synthesized signal in the time domain range resulted in distortion. Thus, those with a large negative phase shift of the band (high frequency) because speaker of inductive reactance and some attenuation, than mild phase shift in frequency band (low frequencies) later to get to the human ear. With instantaneous variable (e.g., percussion and string voices, such as drums, guitar, piano, acoustic and key sound) audio files affected by this kind of phenomenon has the strongest impact, makes the whole sound become dispersed or mixed
Chaotic, causing the music sounds soft and sweet. Hardware 3D sound technology is now mostly use SRS, APX, Spatializer 3D, Q-SOUND, Dolby and Virtaul Ymersion several, though different in their application of theory, but they can make people feel clear three-dimensional sound field effect, the first three more common. There are also twoA sound enhancement technology: active servo technology and BBE High definition high original audio replay system technologies, to improve the sound quality has improved. The basic principle of BBE circuit is the signal into different frequency band, and on the amplitude and phase of signals for adequate compensation, so as to make the sound more real, more clear and delicate. BBE circuit and tone controller or graphic equalizer differ in amplitude and phase: speaker's transient response usually by amplitude response (on input signal response speed) of, unrelated to basically and phase response (high-frequency signal and low-frequency signal is at the appropriate time, be copied). Accurate performance out of the sound of phase and amplitude of the ability to determine the speakers of instantaneous, smooth or sustained response quality. If the speaker's amplitude response curve is linear, the high-frequency signal and the relationship between the low-frequency signal is correct. 　　If the speakers of the phase response curve is linear, the high-frequency signal and low frequency signals will be in the correct chronological order arrives in people's ears, this is the voice of the faithful copying, but the reality is often not the case. To correct these speakers structure inherent problems, BBE circuit has two basic functions, one of which is the regulation of low, medium and high frequency phase relationships. Considering that speakers tend to gradually in the VHF signal into a longer delay, BBE voice processing system in the low-frequency signal gradually lengthen time delay, this time delay for speakers form the mirror curve curves, weakened phase distortion. And high-frequency phase compensation for speaker voice coil inductance on high-frequency signal generation delay to make a voice, BBE circuit will signal in medium and high frequency phase respectively, shift-180 ° and 360 °, in-band, low band delay 0.5ms 2.5ms, then the delay band signal again, so the speakers sound more smooth curve.
Test signal
After using the BBE and BBE signal system of the second feature is an enhancement to the high frequency and low frequency signals. Speakers in extreme treble and bass range of efficiency is not high. Most voice replication systems include one for the high-frequency signal amplification circuit, it also shows the speaker efficiency low is a fait accompli. However, BBE system provides a dynamic process-driven enhancements, and phase offset function, high and low frequency amplitude compensation. BBE circuit will signal amplitude-frequency and low frequency be promoted so that the signal contours more clearly defined, music images more prominent, but also cover the ear on the high, low-frequency signal sensitivity. One restored original soundtrack of magnificent and clear.

In addition, BBE with muting function. 　 　BBE circuit internal equipped with noise gate, and high-cut filter, can enter the stray signal attenuation. It is usually said of BBE technology is only a collectively, in fact, BBE technology in different applications
When a different branch, and BBE is the basis of an application, depending on the different, also includes: BBE most basic algorithms, all of the other branch is established on the basis of the BBE, Mach3Bass-bass BBE promotion algorithm, broader scope; BBE ViVA-BBE 3D effect that applies to a stereo television and portable single sounds, etc.; BBE MP-compression compensation algorithm for MP3, MD, using lossy compression music format products; BBE Optima-simplified BBE correlation algorithm, removed the BBE algorithm adjustment items; BBE K3/K1-compression/limit/automatic gain control, suitable for professional program recording; T2/BBE T2R/BBE T2C/T2M-phone technology, integrated with BBE MP and BBE K3 technology to achieve high-quality phone calls effect MP3 player primary BBE technology it is use software to simulate the characteristics of the BBE circuit, reached the corresponding functions: one is the regulation of low, medium and high frequency phase relations; second, enhanced high-frequency and low frequency signals. BBE technology is hoping to ordinary electronic devices (power amplifier) to restore a more realistic sound. Music signal from acquisition down has come out from the loudspeakers playback, the audio signal may have already experienced the dozens to hundreds of electronic component, and these electronic components particularly capacitance and inductance characteristics with Jan Chi, will make the audio signal phase occurred in small offset, the offset will usually make the high-frequency signal more recently reached our ears, but due to the human ear's auditory characteristics, and feel the music becomes more ambiguity, and will not be able to come the accurate positioning of the instruments. Some professional speaker will treble speakers placed closer to the listener. The BBE technology will on the part of the audio signal to compensate for the offset, therefore, the sounds, use BBE music, after processing more clear.
BBE Mach3Bass
BBE MP MP3 audio enhancement and restoration technology 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. Through over sampling techniques, BBE MP to MP3/WMA files for high frequency band is extended to the CD-level band. This technology, wide in application field to use for MP3 player, MD player, CD player, headphone, mini calendar acoustic phonograph, portable body body sound, car, calendar, calendar, TV, satellite, wireless devices, networks, radio, telephone, etc. BBE MP applicable technology has the full digital compression (loss compression) audio and CD (PCM), MPEG audio (MP1, MP2, MP3), MP3PRO, MPEG4 audio, AAC, ATRAC (MD), AC-3, DTS, Sirius, XM, IBOC, CD (PCM), telephone, etc. 　　BBE MP for sound effects enhanced with the following means: use digital compression technology and enhanced harmonic loss recovery harmonic phase calibration; used sampling technology extended high frequency bands, music exquisite, beautiful and interesting subtle plot; recovery digital compression is damaged after a warm sense of sound. 　　This complex technology solution is very simple digital programs (1/10-1/100 of comparable). BBE MP works
Digital compression Frequency Spectrum: spectrum waveform Wave Form:
Level: level
Compression: compression
Original: the original sound
Frequency: the frequency digital compression mainly in the frequency domain. The upper graph, shown in waveform for the oscilloscope display on A Sonic, "" point sampling, its sound spectrum to upper right picture of the "original sound" curve. In essence, this is a sampling of the process. Collected sound spectrum looks very complicated. Leveler that root complex curves can eliminate most (90%) sound, without regard to significantly impact sound quality (such as the upper picture shows the "compression" to smooth curve as shown below, this is the core of digital compression), so in General still acceptable. System to approximately 40KHz frequency, time range to continue to sample, build the spectrum series. Original audio spectrum: original sound spectrum
Time: time
Digital compression in the frequency domain and time domain, frequency domain within. Time-frequency compression and compression of spectrum after as shown in the simplified (Note: as it was understood, we will simplify the diagram. Many signal therefore deleted and permanently lost, this is exactly the type of compression known as "loss" in the compresses the reason). Also, MP3 sampling rate are often lower than CD's sampling rate, resulting in a certain frequency (half the sampling frequency) the above audio information is lost (Please note the following figure shows the frequency of the subordination of a sudden loss of audio information). 　　This particular frequencies vary from case to case, depending on the spectral range. Digitally compressed audio spectrum: the digital compression of audio spectrum from this data file to restore the sound quality is good, or the sound of the piano, trumpet sound did the same, but the sound of delicate, subtle and music sense but no, the sound also lost interest. BBE can discover and enhanced compressed time-harmonic, correct, and then restore the calibration and enhances the audio. However, all missing harmonics can only regenerate. MP processing MP (minimized number of nonlinearity saturated) can be efficiently generated from the "original sound" as shown in the figure below, marked with the "use MP generated harmonics harmonic". Will even harmonics and odd harmonics into original sound, even harmonic generation voice sounds more harmonious, warm feeling strong and very comfortable; and the amount of the odd harmonics sound more bright, even more strongly. Such processing of audio and warmth of strong, more comfortable, more excellent (this approach is similar to a tube amplifier, the amplifier will generate even harmonics and odd harmonics, electron tube amplifier sound than more advanced solid-state amplifier warmer and more comfortable). MP MP treatment process:
Fundamental: pitch
Generated harmonics by MP MP process: processing of harmonic this MP technology includes the full audio bandwidth, evenly cover low frequency to high frequency band, but will not be able to enhance any one specific frequency bands, will not change the color of the band. The following figure shows the integration of regenerated harmonics spectrum graph. 　　To a high speed sampling of MP processing even rebuild audio signal, and thus complements all the high frequency audio is lost. BBE MP processed audio spectrum: BBE MP processing of audio spectrum BBE MP processing to frequency-based proportional forward linear phase of BBE MP address first in processing. MP process can follow the entire audio frequencies evenly generated harmonics. The BBE audio processing time calibration will gradually decrease (the higher the frequency, the sooner you), so that generated higher harmonic time phase forward. BBE technology let computer easier analysis of the sound, the harmonic or less (compared with pitch, time harmonic phase forward a more Scottrade computer analysis of sound, this is the common sense of psychological acoustics). BBE MP processed audio spectrum: BBE MP processing of audio spectrum
Time: time phase forward advance
Time delay: delay could gradually enhanced BBE with higher frequency sounds. In MP generated harmonics, high-frequency components than low frequency components. BBE processing gain to reduce such differences. BBE MP processing technology can be impaired by the digital compression of sound after into warm feeling stronger, richer, more delicate, clearer, stronger voice.