After ES 6. 1 channel, DTS has introduced more DTS+ formats, and this DTS-HD is the official registered trademark name of DTS++.
These characteristics are all realized in DTS HD format with low bit rate, because the speed requirement of the network limits the bandwidth of the transmission data stream. The data stream of DTS HD can be flexibly changed according to the sound quality required by users. Through the lossless compression technology newly developed by DTS Company, the compression ratio of DTS HD is less than that of dolby digital Plus, thus losing less details and realizing higher quality sound transmission.
DTS-HD is the realization of DTS coherent acoustic coding, which first appeared at1AES exhibition in Copenhagen in May 1996. This core technology is always backward compatible, that is to say, at present, this core technology can be backward compatible with more than 37 million DTS decoders on the market. Based on the original core technology first released by 1996, DTS also successfully introduced two CBR extension technologies.
DTS HD (still called DTS++ in some Blu-ray discs and HD-DVD files) has been selected as an audio substitute for HD-DVD and Blu-ray.
There are three DTS formats that DTS-HD can encode and decode: DTS-HD main audio, DTS-HD high-resolution audio and DTS digital surround sound. Can cope with all kinds of latest entertainment requirements.
. It supports a high bit rate above 1.5Mbps, which is nearly twice as high as the 768kbps used by ordinary DVDs. The sampling frequency range is 8- 192 khz( 16/24 bits). The maximum surround output is 32 channels, and it is said that the number of independent surround channels that this format can support is infinite.
The data stream of DTS-HD can be flexibly converted according to the sound quality requirements, and the corresponding audio bit rate can be adapted from DTS surround sound format to high-quality lossless compression format. Moreover, no matter what format, 5. 1 surround sound and two-channel audio can be downmixed.
As the standard format of digital cinema, DTS-HD is not mentioned here. We mainly look at the audio formats provided for multi-channel home theaters on the next generation CD.
DTS-HD7. 1 channel adds two additional channels on the basis of the traditional 5. 1 channel. These two channels can make the surround sound effect of the new system much higher than that of the traditional surround sound.
The first advantage is that the position of the sound is more accurate. 7. 1 channel has the ability to radiate nearly perfect sound to the whole listening room. Let everyone have a good seat, not just an "emperor's seat". The second advantage is that the 7. 1 channel has a better special dynamic effect.
With more sound channels and sound boxes, the sound can be located at all points in the listening room more accurately. Special effects, such as jets flying overhead or sharp arrows shooting overhead, will make the sound field more dramatic and realistic.
7. 1 channel D S-H stereo can also make your favorite music more vivid. With two additional channels, artists and producers can dramatically "develop" mixing methods. Each instrument and each sound can be "located" in a different position in the listening room. Music can be mixed, putting you in the studio with the band, on the same step as the drummer, or in the first row of the concert hall.
There are two reasons for the good sound quality of DTS-HD, one is the improvement of its own coding technology, and the other is the arrangement of hard channels.
DTS-HD main audio is, but it can correspond to the original recording of 1 bit and 1 bit, so you can enjoy movies and music exactly the same as the artist's intention with DTS-HD main audio.
Because the next-generation high-resolution optical disc has more powerful data storage and transmission capabilities than the traditional optical disc-Blu-ray disc reaches 24.5Mbps and HD-DVD reaches 18.0Mbps, the speed of this bit stream is enough to exceed the bit rate required for lossless audio, so that every bit of the original recording can be reproduced one by one. Make the 7. 1 audio channel exactly the same as the original recording version. In this way, the surround sound after DTS-HD main audio processing is absolutely the same as the original soundtrack or music recording. Blu-ray and HD-DVD discs reconstruct movie images with a video resolution five times that of DVD, resulting in shocking visual realism. DTS-HD audio further matches the sound quality with high-resolution clear and vivid images, making the film effect by going up one flight of stairs. Because the image is only half of the film art, and the other half is the restoration of sound.
DTS-HD audio includes 7. 1 channel speaker layout, and users can choose the speaker position from a variety of speaker layouts according to their own room characteristics and listening requirements. Finally, you can get amazing sound effects with high resolution and experience the high-quality multi-channel sound effects provided by DTS-HD audio. Movies are further animated by sound, as vivid as pictures, while music is like a live performance.
DTS is the standard for all new generation optical discs. DTS digital surround sound has always been regarded as the reference audio format of standard DVD, and it is also the necessary audio format for Blu-ray Disc and HD-DVD hardware products. DTS-HD is an optional format for all Blu-ray discs and HD-DVD products.
DTS-HD is the latest development of DTS sound technology introduced in 1996. Appearing in the unique form of DTS-HD core+extension, this design allows DTS-HD to handle the possibility of incredibly complex performance required by authors and users.
DTS kernel+extension has many advantages. It seems that DTS-HD audio is a single data stream, but the core and extended data can be read and used separately.
First, it is compatible with the existing DTS decoder. All decoders can use this DTS kernel data, but only advanced decoders can use extended data. The decoder that can't use these data will ignore these extended data and directly process the core data without hindering the sound restoration.
The second advantage is that the coding process is simple. Because only one coding channel needs to generate kernel and lossless extension, it can save time and cost in the coding process.
A third advantage is that the size of the core 10 extension data is smaller than that of combining a separate decoder with a separate audio with the same bit position. Content compilers can effectively use disk space by encoding lossless data streams and compatible DTS cores.
The fourth advantage is that the DTS core itself has higher performance than the competitive coding system.
DTS-HD can encode and decode three dts formats:
DTS-HD main audio, DTS-HD high-resolution audio and dts digital surround sound. Can cope with all kinds of latest entertainment requirements.
DTS-HD main audio can handle audio like the original 1 bit pair 1 bit. The audio processed by DTS-H port can reach ultra-high variable bit rate -B, 24.5Mbps for USB flash drive and 18.0 Mbps for HD-DVD. Therefore, it can correspond to all the information of audio: 7. The sampling rate and depth of1channel have reached 96khz/24bit, which is completely consistent with the recorded version of the original sound. With DTS-HD master audio, you can enjoy movies and music that are exactly the same as the artist's intention: clear, pure and uncompromising.
There is no actual difference between the 7. 1 channel sound after DTS-HD high-resolution audio processing and the original sound. The audio standard of DTS-HD high-resolution audio processing is: Blu-ray Disc 6.0Mbps, 3. OMbps for HDDVD. He can also process 7. 1 channel sound with a sampling rate of 96kHz/24bit and quantization depth. Content creators are allowed to handle rich sounds in movies with high-resolution audio, but due to space constraints, the CD may not be able to place the main audio of DTS-H port.
DTS digital surround sound is the original DTS decoding format of home theater audio. Compared with various competing audio decoding technologies at that time, it became the best movie sound because of its large dynamic range and wide frequency response. Create surround sound experience for movies and music.
Retaining this format will enable users to stably play Blu-ray and audio output by DVD players when playing DTS-H encoded discs with existing DTS decoding ability, and enjoy high-quality DTS digital surround sound. Even if compatible with DTS-HD.
Dts-h has high fidelity. In digital recording, the sampling rate is high, the quantization depth is deep, the data volume is large, and the data transmission rate is high. The higher the transmission rate of data information, the higher the sound quality. DTS-HD has the ability to handle high data rate, so it can capture the details of all original information (DTS-HD high-resolution audio) and even all information (DTS-HD main audio). This means that DTS-HD has super correct surround sound.
High sampling rate and large bit quantization depth mean higher resolution and larger dynamic range. DTS-HD provides the possibility of broadband response and large dynamic range for film and music processing. Music and dialogue sound cleaner and more correct, and dynamic sounds are more impactful.