The new breakthrough of Huawei's reproduction technology research at CES2013 just ended, the high-definition ultimate experience stereo allows Huawei D2 mobile phone to perfectly reproduce every moving moment for you!
In the field of traditional professional audio, high-quality audio recording is done by a bulky microphone and its acquisition system, and the function of the traditional mobile phone was originally for narrow-band communication, and after entering mobile broadband, based on traditional narrow-band communication mono audio Collection is far from satisfying users' multiple needs. Current typical mobile phones in the industry basically only have omni-directional mono audio acquisition or ordinary dual-channel acquisition. Since omni-directional microphones have no spatial selectivity, a single microphone cannot record and restore the spatial sound field; while ordinary dual-channel omni-directional microphones are The reason for insufficient distance attenuation is also difficult to present the spatial sound field.
In order to build the next generation of flagship terminals, the Media Lab of Huawei Central Research Institute actively researched the ultimate media experience of flagship terminals, and established a professional acoustic audio laboratory. Relying on the accumulation of media labs in acoustics, audio software and hardware, audio algorithms, etc., Actively research the high-definition audio collection technology of mobile terminals to create the industry-leading audio collection presentation experience of Huawei terminals.
Based on this vision, the Media Lab of Huawei Central Research Institute developed DBSO (Differencial Beam Stereo based on Omni-direcTIonal microphones), a high-definition stereo acquisition technology based on omnidirectional silicon micro microphones. Among them, many technologies are industry-leading: 1. Real-time sound field width Controlled stereo acquisition technology 2. Dual-channel differential beam high-quality equalization processing algorithm 3. Background consistency equalization algorithm 4. Multi-channel equalization sound path equalization technology. And on the mobile phone platform to achieve the stereo field collection and presentation, and at the end of 2012 in Huawei Ascend D2, P2 mobile phones to achieve commercial use.
DBSO schematic
According to the test, the spatial sound field width and positioning accuracy of the DBSO HD audio acquisition significantly surpassed all competitors in the industry.
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