av WuXian » 2006-09-25 16:43
För de som kan engelska:
Nippon Victor (Inc.), since selling the sphere type speaker "GB-1" 1967, being natural, it actualizes ideal sound field playback we to continue the research of the "ideal sound source", this time, it has the efficiency which is close to that "ideal sound source", "the breath sphere type speaker (Pulsating Sphere)" it developed (during patent 17 case applying). As for this technology, in order surface everything "to breathe in the emission aspect of sound", because 12 face piece structures which drive * with the compact spherical speaker, it has the same frequency characteristic with all directions, just information of the sound source and the sound field which the extent and the contents where "you cannot feel the existence of the speaker" have is reproduced faithfully. Furthermore, this corporation September 21st (the wood) from 24 days (day) to with パシフィコ Yokohama is held this technology exhibits in the Victor Company of Japan, Ltd. booth "of A & V フェスタ2006". * 12 face piece structures... the optimum structure which constructs sphere with the polyhedron of the same size -------------------------------------------------------------------------------- < Main merit > 1. Being natural, it actualizes ideal sound field playback, 12 face piece structures * it divides compact spherical speaker diameter 10cm suitable sphere into the segment of 5 rectangularities, actualizing the uniform directional characteristics, high power and until 10kHz within ±1dB it exceeds size by driving with 11 drivers each segment with dynamic system. The natural sound field which is not until recently is reproduced. 5kHz (red),7kHz (green),10kHz (blue) the horizontal directional characteristics in 2. The diaphragm where the whole surface of the speaker becomes the emission aspect of sound, connects development 11 connects 5 rectangular diaphragms in only the edge, developing the connected diaphragm where the surface of the speaker becomes all emission aspects. Influence from the frame and the cabinet is removed, clearing which does not have the strain impression sound is played back. 3. The wide frequency range is played back evenly, in the Weibull curved diaphragm diaphragm developing the individual Weibull curved diaphragm which uses the optimizing technique due to computer analysis. As the high rigid fiber-reinforced plastic is adopted, flat sound pressure frequency characteristic distortion factor is actualized low, you hold down the division vibration and actualizing clear normal position. The wide playback frequency range was achieved. Weibull curved diaphragm 4. With the double neodymium magnet high flux density of 1 Tesla's you adopt 2 neodymium magnets whose actualization energy density is high, actualizing the high flux density of 1 Tesla's who is the highest level as a speaker of the same aperture. Because of this clearing the sound quality is played back to high pass by driving the diaphragm which is connected electromagnetically. 5. Stabilizing the diaphragm which is connected with only the edge, it supports, although orthogonal arrangement double suspension being development high elasticity, it removed specific resonance, actualizing high accuracy drive new development suspension by 2 crossing arranges. Because of this, in order the diaphragm which is connected, just "to breathe", it succeeded in driving accurately. It returns to the top -------------------------------------------------------------------------------- < Development background > This corporation because the natural sound field playback which until recently is not is actualized, is advancing the research and development of the speaker the development of the ideal sound source as a theme. Although 2001 January, being slim form, it actualizes directivity and the clear acoustic image normal position whose horizontal direction is wide to develop the "DD speaker", after that, merchandising the single item compound and the foam/home theater etc.. High appraisal was obtained from the user. This corporation after that does the research which aims toward the omnidirectional non-directional speakers which include vertical direction this time, the compact, ideal wave front playback wide band actualizes playback frequency characteristic, makes natural sound field playback possible, spherical speaker "breath sphere type speaker technology" of 12 face piece structures was developed. Because this speaker technology has the same frequency characteristic with all directions, just it comes to the point of "not being able to feel the existence of the speaker," it reproduces the information of the sound source and the sound field which the contents have faithfully. It returns to the top -------------------------------------------------------------------------------- < Technical explanation > It was one of goals of the developers where the technical name, "breath sphere" is used participates to sound directly as "pronoun of the ideal sound source" from before 60 years above. The reason where "breath sphere" is the ideal sound source is spread, 1) it can create the circumstance like whether the speaker does not exist in the electric acoustic route, 2) there is no disorder in radiation impedance, 3) there is no diffraction by the cabinet, when 4) getting near to the flat condition sound source, there is no problem of the near sound field which happens, and so on being something due to the merit which is superior, the general sound source (the speaker) there is no inherent characteristic which it has, in the same wave front to all directions contents playing back of. Until 10kHz being something which maintains the fluctuation of directional characteristics below ±1dB, with the efficiency which is close to this "ideal sound source", it does the diameter 10cm suitable "breath sphere type speaker" which this corporation this time developed. Each diaphragm, is connected by only the voice coil which is driven with dynamic system by the drive circuit which is locked inside plays back the sound wave of the same amplitude in phase to all directions. In addition, because each diaphragm of 5 rectangularities is entirely connected, it means that speaker surface everything contributes to sonic emission. Because this kind of structure is adopted, clearing which is not the times when it has the cabinet and the frame which become reflection of the sound wave and cause of diffraction does not have the strain impression you can obtain playback sound. In addition by the fact that new technology such as the optimizing technique due to computer simulation is freely used, it developed the diaphragm form which has the even frequency characteristic which until recently is not it succeeded in the stabilization of the quality in high frequency. Vis-a-vis axial direction motion and allowance input, the various devices are done to in addition to. (During patent 17 case applying) < "Breath sphere type speaker" experimental model > It returns to the top -------------------------------------------------------------------------------- *: Contents of this page are information of the reporting announcement day and time point. After that, there is a possibility modification occurring in contents. -------------------------------------------------------------------------------- Ahead the inquiring for this case Nippon Victor (Inc.) corporate communication section public information group 045-450-2951
fast fötterna kunde ha sett lite mer futuristiska ut tycker jag 
