loughborough
Member
When the number of your audio channels is exactly the same as the audio track. But if the audio source is 2.0, you have 5.1 channel speakers, then you can use some virtual surround sound technology to generate fake surround sound, referred to as up-mix, upmix or out of nothing, just like watching 4K TV with 1080p source, you need to double , Upscale; many similar technologies in the past few decades, such as DOLBY Pro Logic II speaker, DTS Neo6, DTS Neo: X speaker.
virtual speakers
And when the sound source is 7.1 channel, you only have 5.1, 2.1 channel speakers, you need to mix the original audio track into the speakers you have, referred to as down-mix, down-mix, or simply called mix, similar The center is mixed to the front two channels, and the side back surround is mixed to the back surround. But in fact, it's like watching 4k video on a 1080P TV. The 7.1 audio track is finally mixed to 2 channels for playback. In fact, there is no effect. Most people use stereo speakers / headphones to hear the sound of the film after downmixing, and no doubt lose the sense of positioning and surrounding, but at least you hear all the sound.
If you do n’t have a sky channel and your amplifier (echo wall) supports Dolby Atmos Height Virtualizer or DTS Virtual: X, then you can virtualize the vertical sound field through existing speakers. Obviously Dolby Atmos is just a downmix method, Manufacturers feel that this can achieve the effect of having a sky channel during publicity. This is generally credible.
Dolby Atmos did not specifically mention this, but DTS's tone was more radical, as follows:
"DTS Virtual: X, using psychoacoustic psychoacoustic techniques to restore sound stereo and satellite overhead, according to the principles of human physiological and psychological acoustics acoustic deal specifically with 3D channel, to create a 3D sound source from the listener rear, side or top of the phantom Feel . "
Don't expect these technologies to bring the effect of replacing physical speakers. In addition, Dolby and DTS and other manufacturers have developed many virtual surround sound technologies for the computer and mobile terminals. I personally think that they can be regarded as an enhanced version of the upmix and downmix technology, which cannot truly achieve a multi-channel surround sound field.
There is also Sony ’s S-Foce front surround sound, which is used on both TV and echo walls, but on the US official website, it only emphasizes the realization of virtual surround effects through two-channel speakers in a small room, while in some conturies, the e-commerce page promotes the effect of 7.1.2 on a regular basis, and it is prudent to speak where laws are strictly controlled.
Of course, I'm not saying that these upmix and downmix, virtual surround technologies are useless, but if you want the effect, you must first ensure the physical channel of Dolby Atmos Height Virtualizer and DTS Virtual: X.
virtual speakers
And when the sound source is 7.1 channel, you only have 5.1, 2.1 channel speakers, you need to mix the original audio track into the speakers you have, referred to as down-mix, down-mix, or simply called mix, similar The center is mixed to the front two channels, and the side back surround is mixed to the back surround. But in fact, it's like watching 4k video on a 1080P TV. The 7.1 audio track is finally mixed to 2 channels for playback. In fact, there is no effect. Most people use stereo speakers / headphones to hear the sound of the film after downmixing, and no doubt lose the sense of positioning and surrounding, but at least you hear all the sound.
If you do n’t have a sky channel and your amplifier (echo wall) supports Dolby Atmos Height Virtualizer or DTS Virtual: X, then you can virtualize the vertical sound field through existing speakers. Obviously Dolby Atmos is just a downmix method, Manufacturers feel that this can achieve the effect of having a sky channel during publicity. This is generally credible.
Dolby Atmos did not specifically mention this, but DTS's tone was more radical, as follows:
"DTS Virtual: X, using psychoacoustic psychoacoustic techniques to restore sound stereo and satellite overhead, according to the principles of human physiological and psychological acoustics acoustic deal specifically with 3D channel, to create a 3D sound source from the listener rear, side or top of the phantom Feel . "
Don't expect these technologies to bring the effect of replacing physical speakers. In addition, Dolby and DTS and other manufacturers have developed many virtual surround sound technologies for the computer and mobile terminals. I personally think that they can be regarded as an enhanced version of the upmix and downmix technology, which cannot truly achieve a multi-channel surround sound field.
There is also Sony ’s S-Foce front surround sound, which is used on both TV and echo walls, but on the US official website, it only emphasizes the realization of virtual surround effects through two-channel speakers in a small room, while in some conturies, the e-commerce page promotes the effect of 7.1.2 on a regular basis, and it is prudent to speak where laws are strictly controlled.
Of course, I'm not saying that these upmix and downmix, virtual surround technologies are useless, but if you want the effect, you must first ensure the physical channel of Dolby Atmos Height Virtualizer and DTS Virtual: X.
