4k recording studio acoustic renovation achieves professional sound at Guangdong Radio and Television Station
A 4k recording studio acoustic renovation project recently completed at Guangdong Radio and Television Station demonstrates the high standards required for modern broadcast production. The core upgrade involved a 40㎡ main control room, originally an outdated recording booth, now transformed into a professional mixing suite for stereo, surround, and 3D audio. This studio covers a total construction area of approximately 130㎡, including a secondary booth of about 23㎡. The renovation team demolished all existing acoustic materials and rebuilt the room from scratch, following the principles of modal analysis for optimal sound field distribution.
Why a 4k recording studio acoustic renovation demands stricter targets than a typical recording room
Unlike a recording room that seeks an extremely dry acoustic environment, a control room for studio must achieve neutral, accurate, and uncolored sound monitoring. The project follows the Chinese standard GY/T5086-2012 for broadcast studios. The key targets for this studio include a reverberation time of 0.25 seconds between 200 and 4000 Hz, a noise level below NR20, and a frequency response unevenness within ±3 dB from 250 to 2000 Hz. These specifications ensure that audio engineers can make precise mixing decisions without acoustic coloration.
The 4k recording studio acoustic renovation solution includes full demolition and redesign
The 4k recording studio acoustic renovation began with complete removal of the old soundproofing materials, which had degraded over time and caused flutter echoes, standing waves, and sound leakage to adjacent rooms. The new design for this room follows four core principles. First, the front wall near the main speakers receives strong absorption to reduce early reflections, while the rear wall uses diffusers to maintain a lively sound field. Second, the studio employs broadband acoustic materials covering 63 Hz to 8000 Hz, with special attention to low-frequency control between 63 and 250 Hz.
Material selection for the 4k recording studio acoustic renovation prioritizes environmental and fire safety
The studio specifies materials that meet high environmental and fire safety standards. All products used in this studio must be E0 grade with no formaldehyde emission, and fire-rated as Class A non-combustible or Class B1 flame retardant. Common materials for this 4k recording studio acoustic renovation include perforated gypsum boards, wood wool panels, and Class A fiberglass boards for absorption, along with wooden QRD diffusers, custom bass traps with air cavities and acoustic cotton, and floating floor systems with resilient channels and soundproofing membranes.
Before the studio, the control room had messy old wall materials, a standard ceiling, a regular floor, and suffered from sound coloration and crosstalk. After the 4k recording studio acoustic renovation, the walls feature a professional combination of sound-absorbing panels and diffusers, the ceiling is equipped with broadband space sound absorbers, and the floor uses a floating platform with professional acoustic flooring. The monitoring environment in this studio is now neutral, accurate, and free of coloration, with complete isolation from neighboring studios.
This 4k recording studio acoustic renovation case sets a benchmark for broadcast facilities
The 4k recording studio acoustic renovation of the 40㎡ control room at Guangdong Radio and Television Station represents a significant infrastructure upgrade for 4K and 3D audio production. For audio engineers working in this studio, the confidence is that any mixing decision made here will translate accurately to any playback device. For viewers, the studio ensures that what they hear is exactly what the creators intended. This project demonstrates how a studio can transform a basic facility into a professional-grade production environment.
How the 4k recording studio acoustic renovation integrates with the station’s 4K workflow
The studio supports the station’s transition to 4K and high-definition television production. This studio enables stereo, surround, and 3D sound mixing and encoding, which are essential for modern broadcast content. The acoustic performance of this studio meets the stringent requirements of the GY/T5086-2012 standard, ensuring that the control room can handle the most demanding audio tasks. The studio also includes isolation measures to prevent sound from affecting adjacent recording studios and broadcast rooms.
Technical details of the 4k recording studio acoustic renovation include floating floor and independent construction
The studio incorporates a floating floor system, independent walls, and an independent ceiling to achieve complete sound isolation. This case design ensures that high-volume playback does not interfere with other rooms in the building. The 4k recording studio acoustic renovation also uses a double-tooth sealing system for doors, which is a proprietary technology developed by the acoustic company. The studio measures each door for sound transmission loss, achieving up to 43 dBA for professional models, which is critical for maintaining the low noise floor required in the control room.
The company responsible for this studio has more than a decade of experience in the acoustic industry. They have served in nearly 500 acoustic decoration projects before this 4k recording studio acoustic renovation. Their expertise covers acoustic material production, acoustic design, and acoustic construction, which are all essential for a successful studio acoustic renovation. The studio team also operates an 800-square-meter modern showroom to demonstrate their full-chain technical capabilities.
Future implications of this 4k recording studio acoustic renovation for broadcast standards
This studio example can serve as a reference for other broadcast facilities planning similar upgrades. The 4k recording studio acoustic renovation approach used here can be applied to other control rooms, recording studios, and performance spaces. The 4k recording studio acoustic renovation demonstrates that with proper planning and execution, even a small 40㎡ space can achieve world-class acoustic performance. The 4k recording studio acoustic renovation project at Guangdong Radio and Television Station proves that acoustic excellence is achievable with the right design and materials.