What is automotive DSP?
DSP is a digital signal processor, which broadly refers to a microprocessor used for digital signal processing and operation. On-board DSP adds electronic frequency division function on this basis? Now it actively divides the frequency, adds a 7850 power amplifier, and becomes a signal for digital signal processing and electronic frequency division. In a narrow sense, DSP is more used in the original car host, CD, Android navigation, where? Belt? Increase or decrease in quantity, high or low? Are all the regulated hosts turned on? DSP chip? Now That is to say, 99% of the known car mainframes are self-contained? DSP chip.
What is the function of automobile DSP?
Automobile DSP is a popular modification method at present, and it is the most popular. The function is to cooperate with the special car? Line speed loss? Now? Fast and low-cost reconstruction of damage. Because DSP has its own electronic frequency divider, can it be modified in three-frequency division? Active electronic frequency division.
What is the misunderstanding of DSP?
Many people think that DSP is the host. Essentially, DSP is a 7850 multifunctional power amplifier, although DSP? Some USB Bluetooth playback functions have been added, but its essence is still only the cheapest and most stable Bluetooth 4.2 playback scheme (see the figure below). Is square dancing common? Used in the boxing ring. Whether it's Bluetooth or Ben. Copy that? Frequency processing? Cheng DSP is not the host, because no matter which way it is handled. Frequency DSP is not? Loss, even sacrifice? Quality is price? Current function or RCA simulation model output. If DSP is the host, is the electronic equalizer used in KTV the host? Can I compare it like this? This is an insult to the electronic equalizer. Although the electronic equalizer used by KTV is DSP digital processing mode, it is I2S digital input, and it is still I2S digital output after signal processing and adjustment. What if we don't adjust? Off-frequency electronic equalizer? No compression, no quality loss, counting in and counting out. But DSP has done analog-to-digital conversion before processing digital signals. What is analog-to-digital conversion? Did your original car horn enter DSP at a high level? The high-low conversion of DSP is converted into analog model, and then the analog signal is converted into digital signal for processing. Tune now? EQ fine tuning, electronic frequency division and other functions. The next section explains the classification.
What is the principle of DSP?
There are three working modes of DSP in the market, and the principles are as follows:
DSP working steps. High level-converted to low level signal-low level converted to digital signal-digital signal is processed and finally converted to analog signal for Ben? 7850 amplifier or? Set RCA output.
Low level input, low level-converted to high level signal-high level converted to RCA analog signal.
Optical fiber coaxial input, digital signal is directly processed-converted into RCA analog signal. (This kind of conversion? The loss is very small, and the price of DSP with digital input function can go up to heaven).