随着家庭影院的发展，对新环绕声格式的需求也在增加。用户现在正在寻找更复杂的音响系统，为他们的电影之夜带来更多细节和真实感。在您尝试在家中设置环绕声系统(setting up a surround sound system)之前，了解一些基础知识非常重要，例如不同家庭影院音频格式之间的区别。
最流行的环绕声格式是DTS和Dolby Digital。这两种音频压缩技术都可以让电影制作人录制高质量的环绕声，您的音频系统可以在家中重现这些声音，但哪一种更好呢？
了解DTS(DTS)和Dolby Digital之间的区别，看看哪一种能提供最刺痛和身临其境的声音。
什么是杜比数字？(What’s Dolby Digital?)
杜比数字是(Dolby Digital)杜比实验室(Dolby Labs)创建的一种多声道音频格式。即使您从未听说过DTS，您也可能听说过Dolby Digital。在环绕声方面，杜比数字(Dolby Digital)被认为是行业标准。这与它的优越性无关。杜比实验室(Dolby Labs)比DTS存在的时间更长。
杜比数字于 1992 年在蝙蝠侠归来(Batman Returns)中首次亮相。从那时起，杜比(Dolby)推出了多种高级音频编解码器，包括杜比 TrueHD(Dolby TrueHD)和杜比全景声(Dolby Atmos)。
TrueHD是一种无损格式，承诺提供与电影制片厂主录音相同的声音。
Atmos是下一代音频系统，根据杜比(Dolby)的说法，它是“自环绕声以来影院音频领域最重大的发展”。
什么是 DTS？(What’s DTS?)
DTS（最初是Digital Theatre (Digital Theater) Systems ）于(Systems)1993(Straight)年首次出现。他们立即开始与Dolby Digital竞争卓越的环绕声格式名称。第一部使用DTS的电影是史蒂文·斯皮尔伯格的《侏罗纪公园(Jurassic Park)》，它开启了 DTS 的流行。
从那时起，该公司开始生产消费类硬件并发布了许多更先进的环绕声格式。这包括称为DTS-HD Master Audio和DTS :X 的无损格式——杜比全景声的竞争对手(Atmos)。
通常，DTS不像(DTS)Dolby Digital那样广为人知（或可用于此）。但是，一些用户认为它是一种优越的格式，因为它以更高的比特率对音频进行编码。
DTS 与杜比数字：相似之处(DTS vs. Dolby Digital: The Similarities)
大多数可用于在家设置的高端音频系统都支持杜比数字(Dolby Digital)和DTS。在其基本形式中，杜比数字(Dolby Digital)和DTS都为 5.1 设置提供环绕声编解码器 - 典型的家庭影院系统，具有五个扬声器和一个低音炮。格式的更高级版本支持 7.1 声道、顶置扬声器和高清环绕声。
今天，工作室同样使用这两种标准来压缩具有多声道音频的密集文件，并节省光盘空间（用于DVD 或蓝光(DVD or Blu-Ray)）或流带宽(streaming bandwidth)（用于 Netflix 等服务）。
杜比(Dolby)和DTS都有“有损”和“无损”编解码器。有损版本的音频会在一定程度上与源不同，而无损格式承诺提供工作室级别的音频性能，但有一些压缩。
杜比(Dolby)和DTS使用额外的技术，例如增强环绕声以获得更好的沉浸感、特定的立体声编码器以及基于对象的音效以增加真实感。
除了家庭影院，您还可以在计算机、智能手机、蓝光(Blu-Ray)播放器或游戏机 上找到DTS和杜比数字。(Dolby Digital)
DTS 与杜比数字：差异(DTS vs. Dolby Digital: The Differences)
每个标准都针对不同形式的媒体提供不同的质量选项（或等级）。以下是每个选项的不同选项：
DTS
- DTS 数字环绕声(DTS Digital Surround)：5.1 最大声道声音，每秒 1.5 兆比特（广泛用于DVD(DVDs)）
- DTS-HD 高分辨率(DTS-HD High Resolution)：7.1 最大声道声音，每秒 6 兆比特（由Netflix等服务支持）
- DTS-HD Master Audio：最大 7.1 声道声音，每秒 24.5 兆比特（蓝光(Blu-Ray)光盘上提供“无损”质量）
- DTS:X
杜比数码(Dolby Digital)
- 杜比数字(Dolby Digital)：5.1 最大声道声音，每秒 640 千比特
- Dolby Digital Plus：7.1 最大声道声音，每秒 1.7 兆比特
- 杜比 TrueHD(Dolby TrueHD)：7.1 最大声道声音，每秒 18 兆比特（“无损”）
- 杜比全景声(Dolby Atmos)
虽然这两种标准在音频性能方面相对接近，但肯定存在一些将它们分开的技术差异。
DTS和杜比数字(Dolby Digital)之间的主要区别在于比特率和压缩级别。
数据传输系统(DTS)：
- DTS Surround压缩 5.1 数字音频数据，应用高达 1.5 兆比特/秒的最大比特率。
- 在DVD上，比特率被限制在每秒 768 KB 左右。
- DTS需要大约 4:1 的压缩率（由于该格式支持更高的比特率）。
杜比数字(Dolby Digital)：
- 杜比数字在(Dolby Digital)蓝光(Blu-Ray)光盘上应用每秒 640 千比特的比特率。
- 在DVD上，比特率限制为 448 kbps。
- 杜比数字必须使用大约 10:1 的压缩来压缩与(Dolby Digital)DTS相同数量的数据。
理论上，编码中使用的压缩越小，您获得的声音就越真实。DTS似乎比(DTS)Dolby Digital具有明显的优势，因为仅在规格上其所有版本的比特率都更高。
但这还不足以确定这两种标准中的哪一种能提供更逼真的声音体验。您必须考虑其他因素，例如信噪比、扬声器校准或动态范围。
哪一个更胜一筹：DTS 还是杜比数字？ (Which One is Superior: DTS or Dolby Digital? )
虽然DTS在纸面上看起来似乎更胜一筹，但(DTS)DTS和杜比数字(Dolby Digital)之间的区别是主观的，很大程度上取决于特定用户及其音响系统设置。
如果您没有在音响系统上投入大量资金，您可能不会注意到任何差异。在这种情况下，无论您为家庭影院设置选择哪一个，都可以。但是，如果您是一位音响发烧友，计划在顶级性能接收器和扬声器上花费大量资金，那么最好对两者进行测试并根据您的喜好做出最终决定。
DTS还是杜比数字(Dolby Digital)？你个人最喜欢什么，为什么？在下面的评论部分分享您对这些环绕声格式的体验。
DTS vs. Dolby Digital: What’s Different and What’s Similar
As home cinema evolved, the need for new surround sound formats hаs risen. Users now are looking for more sophisticated sound systems thаt bring more detail and realism into their movie nights. Βefore уou try setting up a surround sound system at home, it’s essential to know some basics, like the difference between different home theater audio formats.
The most popular surround sound formats are DTS and Dolby Digital. Both audio compression technologies allow moviemakers to record quality surround sound that can be reproduced at home by your audio system, but which one does it better?
Learn the difference between DTS and Dolby Digital and see which one delivers the most spine-tingling and immersive sound.
What’s Dolby Digital?
Dolby Digital is a multi-channel audio format created by Dolby Labs. Even if you’ve never heard of DTS, you’ve probably heard of Dolby Digital before. When it comes to surround sound, Dolby Digital is considered the industry standard. That doesn’t have anything to do with its superiority. Dolby Labs has simply been around longer than DTS.
Dolby Digital made its debut in Batman Returns in 1992. Since then, Dolby has introduced several advanced audio codecs, including Dolby TrueHD and Dolby Atmos.
TrueHD is a lossless format that promises to deliver sound identical to the movie studio’s master recording.
Atmos is a next-generation audio system which according to Dolby, is “the most significant development in cinema audio since surround sound.”
What’s DTS?
DTS (originally Digital Theater Systems) first appeared back in 1993. Straight away, they began competing with Dolby Digital for the superior surround sound format title. The first movie to use DTS was Steven Spielberg’s Jurassic Park, which launched DTS’ popularity.
Since then, the company started producing consumer hardware and released many more advanced surround sound formats. This included a lossless format known as DTS-HD Master Audio and DTS:X — a rival for Dolby’s Atmos.
Generally, DTS isn’t as widely known (or available for that matter) as Dolby Digital. However, some users believe that it’s a superior format as it encodes audio at higher bit rates.
DTS vs. Dolby Digital: The Similarities
Most high-end audio systems available for setting up at home support both Dolby Digital and DTS. In their basic form, both Dolby Digital and DTS offer surround sound codecs for 5.1 setups — a typical home cinema system with five speakers and one subwoofer. More advanced versions of the formats support 7.1 – channels, overhead speakers, and HD surround sound.
Today, both standards are equally used by studios to compress dense files with multi-channel audio and save space on disc (for DVD or Blu-Ray) or streaming bandwidth (for services like Netflix).
Both Dolby and DTS have “lossy” and “lossless” codecs. The audio of the lossy version will differ to some degree from the source, while lossless formats promise to deliver studio-level audio performance, but with some compression.
Dolby and DTS use extra technologies like enhanced surround sound for better immersion, specific encoders for stereo sound, and object-based sound effects for added realism.
Other than your home cinema, you can find both DTS and Dolby Digital on your computer, smartphone, Blu-Ray player, or gaming console.
DTS vs. Dolby Digital: The Differences
Each of the standards comes with different quality options (or tiers) for different forms of media. Here are the different options for each:
DTS
- DTS Digital Surround: 5.1 max channel sound at 1.5 megabits per second (widely used on DVDs)
- DTS-HD High Resolution: 7.1 max channel sound at 6 megabits per second (supported by services like Netflix)
- DTS-HD Master Audio: 7.1 max channel sound at 24.5 megabits per second (“lossless” quality available on Blu-Ray discs)
- DTS:X
Dolby Digital
- Dolby Digital: 5.1 max channel sound at 640 kilobits per second
- Dolby Digital Plus: 7.1 max channel sound at 1.7 megabits per second
- Dolby TrueHD: 7.1 max channel sound at 18 megabits per second (“lossless”)
- Dolby Atmos
While both standards are relatively close in audio performance, there are certainly some technical differences that separate them.
The main difference between DTS and Dolby Digital is in the bitrates and compression levels.
DTS:
- DTS Surround compresses 5.1 digital audio data applying a maximum bit rate of up to 1.5 megabits per second.
- On DVD, the bitrate is limited to around 768 kilobits per second.
- DTS requires compression of about 4:1 (due to the higher bitrate supported by the format).
Dolby Digital:
- Dolby Digital applies a bitrate of 640 kilobits per second on Blu-Ray discs.
- On DVD, the bitrate is limited to 448 kbps.
- Dolby Digital has to use compression of around 10:1 to squeeze in the same amount of data as DTS.
In theory, the lesser the compression used in the encoding, the more realistic sound you get. DTS seems to have a clear advantage over Dolby Digital due to the higher bitrate in all of its versions on specs alone.
But that’s not enough to determine which of the two standards offers a more realistic sound experience. You have to consider other factors like the signal-to-noise ratio, speaker calibration, or dynamic range.
Which One is Superior: DTS or Dolby Digital?
While DTS might seem superior on paper, the difference between DTS and Dolby Digital is subjective and depends a lot on a specific user and their sound system setup.
If you haven’t invested a lot of money in your sound system, you might not notice any difference. In that case, you’ll be fine with whichever one you chose for your home theater setup. But if you’re an audiophile planning to spend some serious money on a top-performance receiver and speakers, then it’s best to test both and make a final decision based on your preferences.
DTS or Dolby Digital? What’s your personal favorite and why? Share your experience with these surround sound formats in the comments section below.
