数字影厅B环电声响应技术标准解析和调试方法探讨
A research on technical standard interpretation and calibration methods discus-sion towards B-chain electro-acoustic response in digital cinemas
张辉1
作者信息
- 1. 中国电影科学技术研究所(中央宣传部电影技术质量检测所),北京 100086
- 折叠
摘要
数字影厅B环电声响应特性是指数字影院音响系统对电信号的响应情况.本文首先概述数字影厅B环电声响应特性相关技术标准,对GY/T 312-2017《电影 录音控制室、室内影厅B环电声响应规范和测量》中涉及的核心技术条款进行解读,总结调试和测量过程中遇到的问题,最后提出一种合理的B环电声响应调试方法,以期为数字影厅相关调试提供技术保障,推动国内数字影厅整体还音技术良性健康有序发展.
Abstract
The electro-acoustic response characteristic of digital cinema B-chain refers to the specific response of audio system to electrical signals within digital cinema.This article first elaborates the technical standards related to B-chain electro-acoustic response characteristics of digital cinema,followed with interpreting the essential technical articles in GY/T 312-2017 Cinematography—B-chain electro-acoustic reponse of motion-picture control rooms and indoor theatres—Specifications and measurements.The author also illustrates problems encountered during field calibrating and testing,and proposes an applicable measuring method for B-chain electro-acoustic response in digital cinema.The proposed method aims at providing requisite technical support for the calibration of digital cinemas,therefore advancing a positive and healthy development towards the overall sound reproduction technology within domestic digital cinemas.
关键词
B环电声响应/基本调试声压级/粉红噪声/频率响应特性Key words
B-chain Electro-acoustic Response/Basic Sound Pressure Level for Calibration/Pink Noise/Frequency Re-sponse Characteristic引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据