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Dolby headset technology is a revolutionary signal processing system, which can process audio signals with up to five channels. The input sound source can be any type, and the sound effect makes you feel like you are in a listening room surrounded by multiple speakers. The traditional way of listening with headphones replaces the "imaging effect in the brain" with a broad and natural sound field, and you won't feel tired after listening for a long time.
Dolby headset technology will not produce that kind of false surround effect: it produces a very real surround effect. Dolby headset technology, with its powerful signal processing algorithm, produces acoustic information of real environment, which is transmitted to your ears and brain to produce real three-dimensional sound images. When listening to an audio track encoded by dolby digital or Dolby, you will feel the sound coming from five speakers: three in front of you and two in the back. When listening to stereo programs, you will feel that the speakers are not in your ears, but in front of you.
Any audio and video product with headphone output interface can apply Dolby headphone technology. More importantly, this technology can use any pair of stereo headphones, including what you already have.
To put it simply, 2. 1 means two high notes and one low note.
5. 1 means five trebles+one bass.
There are now 7. 1.
5. 1 channel has been widely used in all kinds of traditional cinemas and home cinemas. Some well-known recording and compression formats, such as Dolby AC-3(Dolby Digital) and DTS, are based on 5. 1 sound system, in which ".1" channel is a specially designed subwoofer channel, which can produce a frequency response range of 20. In fact, the sound system of 5. 1 comes from 4. 1 surround, but the difference is that a central unit is added. This central unit is responsible for transmitting sound signals below 80Hz, which helps to strengthen the human voice when enjoying the film and concentrate the dialogue in the middle of the whole sound field to increase the overall effect. I believe that every friend who has really experienced Dolby AC-3 sound effects will be deeply impressed by 5. 1 channel.
Never think that 5. 1 is the peak of surround sound, and a more powerful 7. 1 system has appeared. On the basis of 5. 1, two pronunciation points, center left and center right, are added to achieve a more perfect state. Because of the high cost, it has not been widely promoted.