The word “upsampling” is generally used as an audio boost when the sampling rate of audio files is improved by interpolation. However, the word “upsampling” is not only used in audio fever, but in electronic digital. In the experience improvement of equipment, this “man-made source of improvement” theory has also been widely applied

Due to the fierce competition of electronic products, it is limited to the technical bottleneck. The competition on physical parameters has made it difficult to separate the products from you and me. On the “soft” level, sophisticated algorithms are used to “lift” the source. The quality of the product is also a part of the product that can be enhanced. This “algorithm upsizing” concept has covered different product industries

The quality of the TV is “upsampling”.

Many people mentioned the TV set, and the understanding of TV is still limited to “receiving the display screen of TV programs”. However, today’s TV sets are not only a receiving terminal for TV programs, but even some means can be used. To achieve precise adjustment of image quality, use algorithms to “upgrade” the quality of the image, thus changing the viewing experience from the source

The picture quality ups here is not simply to up-convert the 1080p signal to 4K, but with a sophisticated algorithm to sharpen the outline edges of the picture, reduce image noise, smooth color changes, and expand colors. The range of degrees, eventually reaching the 1080p video also has the look and feel of the native 4K picture. Although it is still not as good as the original 4K picture, but in this era of the original 4K film source is not enough, today’s 4K TV, indeed under the effect of sophisticated algorithms, greatly improved the look and feel

HIFI device’s sound quality “upsampling”.

The word “ups” is itself a popular word in the HIFI circle. The threshold of HIFI equipment has also been continuously improved with the improvement of technology. Nowadays, many mobile phones are equipped with a professional audio chip and dare to call themselves “HIFI mobile phones”, and those who actually play HIFI have already played a more high-end gameplay. The algorithm is up-converted. This concept has been around for a long time, but today’s algorithms are more complex and sophisticated, and different manufacturers have different ways of playing. A manufacturer uses more than 40 DSP chips and an exclusive algorithm to implement the DAC process with FPGA, and completely bid farewell to the traditional DAC chip mode to achieve higher calculation accuracy

A manufacturer uses an exclusive algorithm to compensate for the high-frequency loss of the MP3 lossy format, and then uses the algorithm to convert the PCM source into a high-rate DSD source, and then uses an exclusive technique to harden the DSD to achieve a lower level. Noise and the realization of HIFI’s sense of hearing; the improvement of these technologies has also raised the threshold for HIFI, and also increased the value of non-professional audio sources at hand

Photography still leaves the algorithm of imprecision.

More than just video and audio, imaging is also an area where sophisticated algorithms come into play. Physically, a good lens is an essential factor for good imaging, and then the imaging process of an electronic camera, excellent algorithm correction is still essential. Because the algorithm is constantly optimized, the mobile phone with high physical bottleneck can also produce clearer and more beautiful images than in the past. This is the advantage of excellent algorithms, not only the physical parameters can be blown into the sky. Of.The optimization of

Algorithm brings better imaging, more high-definition images, and more beautiful sounds. The future digital products are probably an algorithm of “upsampling” the world