论文部分内容阅读
近几年间，影片越来越响的问题日益成为影片制作界所关注的问题，而且观众也普遍抱怨说电影太响了。可能是由于观众抱怨的缘故，目前许多影院在影片放映时均将音频衰减器调整到与录音棚里的设备相匹配的校准声级以下。下文材料将讨论的就是有关声迹“响度”的一些问题。如何测量影片的“响度”？影院为何要将声音调低？新的声迹制式（道尔贝ＳＲ和最近的数字制式——道尔贝ＳＲ·Ｄ、索尼ＳＤＤＳ、ＤＴＳ）是否加剧了所感知的响度？本文描述了一个旨在利用仪表读数来确定所感知的长时间声迹的响度的研究，并且提供了一些数据。
In recent years, the problem of increasingly loud videos has become a topic of concern to the film industry, and viewers generally complain that the film is too loud. Probably due to complaints from viewers, many theaters currently have audio attenuators below the calibrated sound level that matches the equipment in the studio during filming. The following article will discuss some of the questions about “loudness” of the soundtrack. How to measure the movie’s “loudness”? Why should the theater lower the sound? Does the new soundtrack format (Dolby SR and the recent digital formats - Dolby SRD, Sony SDDS, DTS) exacerbate perceived loudness? This article describes a study designed to determine the loudness of a perceived long-term soundtrack using meter readings and provides some data.