Earlier we shared three standard settings for home theater speaker placement: Audyssey DSX, ITU-R and THX standards (see: "Audyssey DSX Standard Surround Sound Design for Home Theater Speaker Positioning" "ITU for Home Theater Speaker Positioning" -R standard surround sound design scheme, "THX standard surround sound design scheme for home theater speaker placement"), today we will introduce two kinds, namely: Dolby Pro Logic IIz and DTS Neo:X, let's analyze it in detail below. .
The surround sound definition of Dolby Pro Logic IIz:
Dolby Pro Logic IIz can build a 7.1-channel playback system based on a 5.1 surround system or upgrade from a 7.1-channel system to a 9.1 system. In the placement of the speakers, we can do according to the above Audyssey DSX regulations, Dolby Pro Logic IIz did not make relevant recommendations, but another advantage of Dolby Pro Logic IIz is that it can be used for 5.1 and 7.1 channels. The channel signal is matrix processed. For example, using a directional logic mode, a virtual compatibility mode, a music mode, a movie mode, a matrix mode, a Dolby Digital EX mode, etc., the surround sound signal is decoded to make the sound surround more powerful.
DTS Neo: X surround sound definition:
Although more than a year later than Dolby Pro Logic IIz and Audyssey DSX, DTS Neo:X provides the world's first algorithm to convert 2.0, 5.1, 6.1, and 7.1 channel audio to 9.1, 11.1 channel audio, regardless of Appreciating movies, music or playing games can bring a wider sound field, a richer sense of envelopment and a more vivid sound positioning. The AV amplifier with DTS Neo:X technology will have more features.
Technically, it can be said that DTS Neo:X combines the characteristics of Dolby Pro Logic IIz and Audyssey DSX processing technology, and also increases the upper sound field and the left and right wide sound field, which not only enhances the vertical sound performance, but also strengthens the horizontal direction. The voice is portrayed. Similar to the Dolby Pro Logic IIz in the placement of the upper sound field speakers, placed above the front left and right channels. The left and right wide channels are similar to the Audyssey DSX, placed in the middle of the left and right channels and the side surround channels, approximately 45° ahead of the listening position.
More home theater technical information, all in China's home theater network, official WeChat: cnhifi.
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