DTS sound and HiFi who is stronger _DTS sound and HiFi details

Recently, HiFi is very popular. There are endless discussions about sound quality. Who is better with DTS sound and HiFi? The following is a detailed introduction of the two.

Currently, this specification is more commonly used on large screens than in home appliances. It is also a 5.1 system, so it is encoded into 6 channels just like the Dolby Digital sound. There are many systems compatible with DTS, so surround sound devices such as sound cards can decode DTS through software. However, although DTS's outstanding sound quality is undeniable, even better than Dolby, but know that there is no film that only uses DTS technology, and Dolby sound is the standard specification of digital sound, and DTS is not. The main feature of DTS is that the requirements for sound quality are more important than storage space. So DTS audio uses 24bits encoding, compared to Dolby digits only 18bits encoding.

DTS compression algorithm uses dynamic processing, which will change the data compression ratio with the sound. The compression ratio is between 1:1 and 1:40. At an average data rate of 1.5Mb per second, the sound quality of the sound is better than Du. It’s better than the number. But the biggest problem is that the audio data takes up too much space (about 3 times the Dolby digit). Therefore, DVDs using DTS technology usually have only one language, and the additional content is much less. Because this is an optional sound specification, there are not many DVDs on the market that use DTS technology, but the trend of numbers is gradually growing.

DTS is an abbreviation of "Digital Theater System" and means "Digital Theater System". Technically, DTS is completely different from other sound processing systems, including Dolby Digital. DolbyDigital stores sound data between the perforations of motion picture film. Because of space constraints, a large number of compression modes must be used, so that part of the sound quality has to be sacrificed. DTS solved this problem in a simple way by storing the sound data in another CD-ROM and synchronizing it with the image data. In this way, not only the space is increased, but also the data traffic can be relatively large, and the CD storing the sound effect data can be replaced to play different language versions.

The DTS is divided into left, center, right, left surround, right surround 5 channels, plus the bass channel consists of 5.1 channels, which is the same as Dolby Digital. However, the standard data traffic of DTS in DVD is 1536kbps, while the data traffic of DolbyDigital is 384Kbps ~ 448Kbps, up to 640Kbps. Obviously, DTS has higher data traffic and lower digital compression ratio. . The lower the data compression ratio, the larger the recording space occupied, but the better the playback quality is, and the DTS adopts measures such as high bit and high sampling rate, which makes the pursuit of original sound reproduction a step further. Therefore, DTS is considered by many to be more effective than DolbyDigital.

After the development of DTS technology, it was announced in the film industry. It was immediately highly valued by the big directors Spielberg and Universal Pictures, and was strongly supported by Spielberg and took the lead in the large-scale science fiction film Jurassic Park. Try to use DTS technology. After the unprecedented success of DTS in the Jurassic Park, many good Docking Movies have also begun to introduce DTS digital surround sound systems. Many directors, producers, and mixers believe that DTS is the system with the best sound reproduction. However, due to insufficient promotion and incompatibility with 5.1-channel Dolby Digital, when the DVD working group of the US consumer electronics industry in 1995 found the best audio coding technology for the new surround sound format, they chose Dolby Digital, so the first DVD players are not compatible with DTS. At present, the number of DVDs supporting DTS does not support Dolby, but from the perspective of the effect of DVD playback, many people think that the sound field effect of DTS is even better, so DTS is supported as a relatively high-end application. It should be noted that because DTS has higher data rate and more space than dolbydigital, so 2 hours or so DTS format DVD movies often need to save some multi-language, multi-angle functions or movie trailers, make specials, etc. Additional content, unless a larger two-layer structure DVD disc or double-sided DVD is used to ensure the quality of the picture, which makes the DVD disc supporting DTS less than that supporting Dolby.

Hi-Fi is the abbreviation of English High-Fidelity, literally translated as "high fidelity", which is defined as: a replay sound that is highly similar to the original sound. So what kind of audio equipment playback sound is Hi-Fi? It is still difficult to draw a definitive conclusion so far. Professionals in the audio industry use various instruments to detect various indicators to determine the level of Hi-Fi equipment. Audiophiles often use their own ears to determine whether the equipment meets Hi-Fi. . Judging the high fidelity of the playback sound requires not only equipment and software with excellent performance, but also a good listening environment. Therefore, how to correctly measure the Hi-Fi level of audio equipment, there are still differences between objective test and subjective evaluation.

Hi-Fi = high fidelity, the Hi-Fi system in the enthusiast's mouth generally refers to the higher technical indicators. Even the same type of instrument will have different sound performance, the most important part is the difference in sound quality. The sound quality of audio equipment will also vary depending on the internal materials and the taste of the designer's tuning. Of course, noble sound quality and tone are hard to come by in general instruments, and it is also difficult to appear on low-cost audio systems. The cheap audio should pay attention to whether the difference between different instruments in the recording software can be correctly expressed. If the recording of the Steinway piano sounds no different from the cheap piano, there is no way to understand the beauty of the excellent recording. Up

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