17:17Machine-translated from Azerbaijani by AIRead in Azerbaijani
What Is the Difference Between Dolby Digital 5.1 and Dolby Digital Plus?
We often encounter Dolby Digital and Dolby Digital Plus options in the settings of TVs, soundbars, or home theater systems. Although the name may suggest that Dolby Digital Plus is simply a higher-quality version, the main difference between the two formats is not limited to sound quality. Dolby Digital, also known as AC-3, is an older audio format and supports up to 5.1-channel surround sound. Dolby Digital Plus, or E-AC-3, is a newer technology that can transmit up to 7.1-channel audio and can also carry Dolby Atmos data. A 5.1 system has a total of five main audio channels: front left, center, front right, rear/surround left, and rear/surround right. The “.1” refers to a separate channel intended for low-frequency sounds, usually the subwoofer. As a result, dialogue in a movie may be heard primarily through the center channel, ambient sounds through the other speakers, and effects such as explosions and powerful bass through the subwoofer.
Dolby Digital supports configurations ranging from mono audio up to a maximum of 5.1. This format is particularly common on DVDs, digital television, and previous-generation home theater systems. Dolby Digital Plus supports up to 7.1-channel audio. A 7.1 system has two additional surround channels compared with 5.1, allowing sounds to be positioned more precisely around the listener on a compatible system. However, seeing Dolby Digital Plus displayed on a device does not necessarily mean that the audio is 7.1. Standard 5.1 audio can also be transmitted through DD+. In other words, if you have a 5.1 speaker system, you do not need to buy two additional speakers simply because you use Dolby Digital Plus. Dolby Digital Plus is particularly important for content streamed over the internet. Streaming platforms can use this format to transmit multichannel audio more efficiently.
One of the main advantages of Dolby Digital Plus is that it can carry Dolby Atmos. Unlike a traditional surround system, Atmos does not limit sound to specific channels. Instead, it transmits additional information about where sound objects should be positioned within a space. However, Dolby Digital Plus and Dolby Atmos are not the same thing. Dolby Digital Plus is one of the formats that can be used to deliver Atmos. For example, streaming services often provide Dolby Atmos through Dolby Digital Plus. On physical media such as Blu-ray, Atmos can also be delivered through Dolby TrueHD. Unlike Dolby Digital and DD+, TrueHD is a lossless audio format. If your TV, media player, soundbar, or AV receiver supports Dolby Digital Plus, it is generally preferable to keep the DD+ option enabled. Dolby Digital Plus can carry 5.1 audio without any problems while also enabling 7.1 and Dolby Atmos when compatible content is available. Dolby Digital is mainly preferable when compatibility with older audio equipment is required. An older Dolby Digital decoder may not directly recognize a DD+ signal. In that case, the TV or media player must convert the DD+ audio to standard Dolby Digital. In short, Dolby Digital is an older standard designed for a maximum of 5.1, while Dolby Digital Plus is a more modern and flexible format with support for 7.1 and Dolby Atmos.
Dolby Digital supports configurations ranging from mono audio up to a maximum of 5.1. This format is particularly common on DVDs, digital television, and previous-generation home theater systems. Dolby Digital Plus supports up to 7.1-channel audio. A 7.1 system has two additional surround channels compared with 5.1, allowing sounds to be positioned more precisely around the listener on a compatible system. However, seeing Dolby Digital Plus displayed on a device does not necessarily mean that the audio is 7.1. Standard 5.1 audio can also be transmitted through DD+. In other words, if you have a 5.1 speaker system, you do not need to buy two additional speakers simply because you use Dolby Digital Plus. Dolby Digital Plus is particularly important for content streamed over the internet. Streaming platforms can use this format to transmit multichannel audio more efficiently. One of the main advantages of Dolby Digital Plus is that it can carry Dolby Atmos. Unlike a traditional surround system, Atmos does not limit sound to specific channels. Instead, it transmits additional information about where sound objects should be positioned within a space. However, Dolby Digital Plus and Dolby Atmos are not the same thing. Dolby Digital Plus is one of the formats that can be used to deliver Atmos. For example, streaming services often provide Dolby Atmos through Dolby Digital Plus. On physical media such as Blu-ray, Atmos can also be delivered through Dolby TrueHD. Unlike Dolby Digital and DD+, TrueHD is a lossless audio format. If your TV, media player, soundbar, or AV receiver supports Dolby Digital Plus, it is generally preferable to keep the DD+ option enabled. Dolby Digital Plus can carry 5.1 audio without any problems while also enabling 7.1 and Dolby Atmos when compatible content is available. Dolby Digital is mainly preferable when compatibility with older audio equipment is required. An older Dolby Digital decoder may not directly recognize a DD+ signal. In that case, the TV or media player must convert the DD+ audio to standard Dolby Digital. In short, Dolby Digital is an older standard designed for a maximum of 5.1, while Dolby Digital Plus is a more modern and flexible format with support for 7.1 and Dolby Atmos.