Core Viewpoint - Acoustic technology is becoming a new engine for technological innovation, with various acoustic smart terminals entering households and industries, enhancing control and understanding of sound [1][4]. Group 1: Industry Development - The "China Sound Valley" in Changshu, Suzhou, is leveraging new materials and technologies to make sound more controllable and perceptible, with a range of acoustic smart terminals being integrated into various sectors [4]. - The acoustic innovation zone is focused on creating an industrial innovation cluster led by acoustic technology, with over 150 acoustic project initiatives aimed at empowering high-end industries such as automotive manufacturing, medical devices, and marine communications [5]. - The sound valley has established a complete innovation chain from pilot testing to industrialization verification, facilitating the transformation of new technologies and products [11]. Group 2: Noise Management - Changshu has developed the country's first urban "noise map," utilizing automatic devices for 24/7 monitoring and a database that captures various noise pollution types, triggering alerts when noise levels exceed standards [8]. - Acoustic technology is being utilized for noise management, contributing to the creation of quieter urban environments [6]. Group 3: Economic Impact - In the first half of this year, the output value of the sound valley exceeded 13.5 billion yuan, representing a year-on-year growth of 34.4% [14]. - The local government aims to accelerate the transformation of strategic and critical technological achievements, targeting the establishment of a 100 billion yuan-level acoustic industry innovation cluster [12].

Core Viewpoint - The "China Sound Valley" in Suzhou is emerging as a new engine for technological innovation, focusing on sound control and acoustic technology applications [1][12]. Group 1: Acoustic Innovations - The Sound Valley has developed advanced sound-absorbing materials that significantly reduce noise, utilizing a honeycomb structure to create resonance and lower sound energy [3][4]. - Active noise cancellation technology is being implemented, which releases sound waves that are opposite in phase to the noise, effectively reducing sound levels in environments like truck cabins [6][12]. - The "acoustic camera" technology can visualize sound, identifying inaudible frequencies and pinpointing sound sources, enhancing sound control in various applications [8][12]. Group 2: Applications and Impact - The innovations in sound technology are being applied in diverse fields, including automotive manufacturing, medical devices, and marine communications, contributing to the development of over 150 acoustic projects in the region [12][20]. - The establishment of a "noise map" platform in Changshu allows for real-time monitoring and precise identification of noise pollution, achieving a 98% accuracy rate in capturing specific noise events [14][16]. - The local government is promoting the construction of a "quiet city" by implementing noise-sensitive building regulations and control mechanisms, supported by the noise map technology [18][24]. Group 3: Economic Growth and Support - The Sound Valley's output value reached 13.5 billion yuan in the first half of 2025, marking a 34.4% year-on-year increase, with plans to develop a trillion-yuan acoustic industry cluster [26]. - A comprehensive innovation chain has been established to facilitate the transition of new technologies from research to market, supported by government funding and investment initiatives totaling 1 billion yuan [24][26]. - The region is fostering collaboration between academia and industry, with 11 platforms for research and development partnerships, enhancing the growth of the acoustic technology sector [24].

Core Viewpoint - The article highlights the transformation of square dancing from a stereotype associated with the elderly to a popular and modern fitness activity embraced by all age groups, facilitated by technological advancements like directional sound systems [3][6][7]. Group 1: Technological Innovations - The introduction of directional sound systems in community squares allows for music to be heard clearly within a specific area while minimizing noise disturbance to surrounding residents, achieving a "dance area with sound, surrounding silence" effect [4][5]. - The directional sound technology can control sound within a 30 to 60-degree angle, ensuring that sound levels exceed 90 decibels in the front while remaining below 60 decibels in the side and rear areas [4][6]. - Since the implementation of directional sound systems, noise complaints in the community have decreased by 73%, significantly enhancing resident satisfaction [6]. Group 2: Demographic Changes - Square dancing is increasingly attracting younger participants, with individuals like a psychology doctoral student leading dance groups, indicating a shift in perception and participation demographics [7][8]. - The involvement of younger dancers has introduced new styles and trends to square dancing, moving away from traditional views that labeled it as an activity for the elderly [8][9]. - The social aspect of square dancing is emphasized, as it serves as a platform for individuals to connect and alleviate social anxiety, particularly among younger participants [8]. Group 3: Community Engagement - Community efforts have been made to manage square dancing activities, including a reservation system for sound equipment and the establishment of records for each dance team [5][6]. - The article notes that square dancing is a low-barrier, quick-entry physical activity that is widely loved by the public, promoting health and social interaction [9].