Dolby Atmos Speaker System (DASS)
The S81 Pro is equipped with the Dolby Atmos Speaker System (DASS) 2.0.2. When playing videos in Dolby Atmos format, the S81 Pro’s two Crystal Sound OLED (CSO) channels create a sense of sound coming from above thanks to a special algorithm, providing users with a supreme surround sound experience.
The S81 Pro also supports the external Suprav DRUM (a wireless subwoofer) to build the Dolby Atmos Speaker System 2.1.2, with a stronger and deeper bass which creates stunning low pitches.
CSO（Crystal Sound OLED） produces sounds by screen vibration, enabling sound and image synchronization
The S81 Pro is SKYWORTH’s first TV to adopt home-grown OLED basic modules (OBM) equipped with CSO technology. It is also the first CSO solution entirely developed and manufactured by SKYWORTH. Leveraging the flexible nature of an OLED screen, CSO vibrates the screen to produce sounds, which seem to come precisely from the objects on the screen associated with them, enabling the sounds which sync beautifully with motion pictures.
Exciters located behind the OLED panel vibrate the displays. When combined with an audio algorithm, this produces sounds that sync beautifully with motion pictures. The S81 Pro is equipped with the brand-new exciters with a flux density that is enhanced from 0.5t to 1.0t, compared with the previous generation. High-frequency signals of above 12 KHz benefit from a 3-5 decibel boost, improving the quality of the signals.
The S81 Pro is a superior audio-visual machine featuring an OLED display, CSO technology and DASS 2.0.2. The left and right main speakers adopt a design with four units of different frequencies. On each side, there is an independent silk dome tweeter and a runway-shaped mid-range driver. This set-up guarantees sufficiently loud and balanced sounds whether the TV is put on a stand or mounted on a wall. In addition, it has two unique amplifying channels with CSO technology that produce sounds via screen vibration.
The S81 Pro is a brilliant co-creation from professionals at SKYWORTH and Dolby. The team meticulously set up acoustic tests to achieve the best speaker performance. Thanks to a Dolby Atmos algorithm, the S81 Pro’s speakers optimize the audio experience, boosting volume without creating audio distortion, which in turn makes the dialogue in movies and TV shows clearer. The DASS produces sounds that sound like they are coming from above, creating a dynamic surround sound experience. Sounds from characters, locations and objects, as well as music, are produced with true-to-life richness and depth. The 3D movement of multiple sound sources allows users to enjoy an immersive cinematic experience.
Moreover, the S81 Pro is a masterpiece created by SKYWORTH’s OBM professionals. The team is capable of developing OBM and are experienced in designing TVs with industry-leading functions and characteristics. They have complete design autonomy and are not restricted by other ready-made TV modules, which are currently available on the market.
To achieve an ultra-narrow bezel on TVs, speakers are typically installed at the bottom of the TV screen, which results in sounds being projected downwards. As a result, during scenes with dialogue, particularly where the mouth of a character is in the middle of the TV screen, the sound will appear as though it is coming from the person’s abdomen or the floor, instead of coming from the person’s mouth. SKYWORTH’s acoustic engineers, who are dedicated to delivering an ultimate user experience, have spent years to find a solution for this problem. Leveraging CSO technology, SKYWORTH’s research insights on sound on display technology, the algorithm developed by SKYWORTH’s software team and OBM created by SKYWORTH, the S81 Pro eliminates this common problem.
Years ago, when LED TVs were popular, SKYWORTH’s acoustic team studied the effect that speakers’ placement had on creating authentic sound. They examined the effect that placing speakers in different parts of the TV had on overall sound quality and tested the outcomes by playing an array of video sources repeatedly. One of the test scenes used was from a famous Chinese film called "Hero", where the character Nameless (played by film actor Jet Li) answered the king’s question with a single word – “sword”. It was then when the acoustic team realized the sound appeared to come from the general direction of the TV instead of the mouth of Nameless, greatly affecting the sense of drama and atmosphere created by this classic line. The sound only seemed to come from Nameless’ mouth when the external speaker was placed in the middle of the screen. This sparked the team’s commitment to designing a display that produces sounds, which would have similar acoustic principles to when a speaker is embedded in the TV frame. The LED backlight structure of TVs at the time made this idea tricky to execute. It was only until late 2015, when OLED Wallpaper modules became commercially available, that the acoustic team was able to create the sound on display technology in the S81 Pro.
SKYWORTH has invested heavily in the research and development of sound on display technology over the years. The team first studied exciter’s structure and features and developed several exciter prototypes. Then, the team deep dived into how placing the exciter in different positions within the TV module affected the overall audio performance. In the final stage, the team examined the structural combination of an exciter and OLED in the pursuit of achieving perfect acoustics while maintaining mechanical reliability. After years of perfecting this technology, Skyworth believes it has achieved a breakthrough in the development of sound on display technology, enhancing the viewing experience to become as true-to-life as possible. SKYWORTH will continue to invest in sound on display technology to develop further breakthroughs.
Overall audio performance and the sense of sound coming from above are both affected by the angle of elevation. As the S81 Pro maintains an elevation angle of 5 degrees when it is put on a stand and becomes vertical when mounted on a wall, SKYWORTH strived to design a sound field algorithm that consistently produces sounds that seem to come from above by looking into the height difference between the two TV positions and the average distance between viewers and TVs. To do this, SKYWORTH surveyed and analyzed thousands of users’ viewing habits. They discovered that when a TV is mounted on a wall, it stands slightly closer to the wall and is placed 20 to 30 cm higher than when a TV is placed on a stand. They also found that the average distance between users and their TVs is 3 meters. With the support of these insights, precise calculations and repeated testing, SKYWORTH successfully designed an algorithm that creates a consistent sense of sound coming from above, no matter where the TV is placed.
Applying Dolby Atmos, the world's most advanced 3D audio technology in the S81 Pro, Dolby tailored and optimized the algorithm to meet the transmission needs of a flat sound field to produce sounds that seem to come from above. During the design and debugging process, SKYWORTH and Dolby put a diverse range of scenarios to the test. The team debugged and optimized the algorithm according to the feedback, resulting in a stunning entertainment experience. In addition to optimizing the audio experience of all videos, the acoustic system also boosts the volume without creating audio distortion, which makes dialogue clearer and enables more precise image-sound association. The DASS produces sounds which sound like they are coming from above, creating a supreme surround sound and dynamic audio experience. Sounds from characters, locations and objects, as well as music, are produced with true-to-life richness and depth. The 3D movement of multiple sound sources allows users to enjoy an immersive cinematic experience.