What is a digital signal processor?

Built-in digital signal processor (DSP, Digital Signal Processor) is host to vehicle logic circuits on audio and video digital signal is then processed by a private component, is a "terms, including digital effects, EQ, 3D surround and so on. Digital signal processor is not limited to audio and video level, it is widely used in communication and information systems, signal and information processing, automatic control, radar, military, aerospace, medical, household appliances and many other areas. In the past, was adopting a common microprocessors to complete a large number of digital signal processing operations, a slow, difficult to meet actual needs; while at the same time use bit chip microprocessor and fast parallel multiplier, was the realization of digital signal processing is an effective way, but this method of devices, logical design and programming of complex, lower power consumption, which is very expensive. DSP digital signal processor, it's a good solution to this problem. DSP can quickly achieve the signal acquisition, conversion, filtering, valuation, enhanced, compression, recognition, treatment, to be consistent with the signal form are needed. On-board host, the DSP is largely providing specific sound field or effects, such as theater, jazz, and so on, some also can receive high-definition (HD) radio and satellite radio, and so on, for a maximum of audio-visual enjoyment. Digital signal processor DSP enhanced on-board host performance and availability, improved audio and video quality, offer more flexibility and faster design cycles. As technology evolves, believe that the future can also provide more of auditory and Visual effects, which make the car as the car's host high-tech information and entertainment centres.