Dolby sound 7.1.2 is not panoramic sound, but advanced surround sound, with only 9 channels, 7 speakers on the ground, and 2 speakers on the front zhidao surface, with only the sound difference between front and back. 7.1.4 is the panoramic sound, which is 11 channels. There are 7 speakers on the ground, 2 speakers in the front and 2 speakers in the back. The sound is up and down, before and after and left and right. Surround sound and panoramic sound all need sound room to have sound effect. The sound positioning is the same as in the movie. Without sound room, there would be chaos.
The difference between the positioning of dolby sound 7.1.2 and 7.1.4 speakers is in the sky channel, the former has only two in left and right, the latter has four in left, right, front and back. Placement for designed for concerns to 7.1.2 system, so the two channels to the sky in the position of the upper part is a little bit on the sofa, compared with 7.1. 4, the location will be a little lack of voice from the back forward. For 7.1.4 system, four sky channels around the sofa provides good surrounding effect and has a certain request for the width of the sound room.
The difference between the positioning of dolby sound 7.1.2 and 7.1.4 speakers is in the sky channel, the former has only two in left and right, the latter has four in left, right, front and back. Placement for designed for concerns to 7.1.2 system, so the two channels to the sky in the position of the upper part is a little bit on the sofa, compared with 7.1. 4, the location will be a little lack of voice from the back forward. For 7.1.4 system, four sky channels around the sofa provides good surrounding effect and has a certain request for the width of the sound room.
