Categories
Contact Us

Add: 4F, 1Building, ShaSan Chuang Ye Industrial Park, ShaJing, BaoAn, Shenzhen, China

Mob: +86-18665366718

Tel: +86-755-81490212

Fax: +86-755-27269760

Email: sales@egreatworld.com

News
Home > News > Content
Why Do Home Theaters Have Enough Loudness?
Nov 13, 2018

An ideal realm to play in a home theater is to be immersive and try to restore the effect of sound production. In our real life, there are different sound levels, such as: chat (distance 1 meter) is 40~60dB, bus (distance 10m) is 60~80dB, busy road traffic (distance 10m) is 80~ 90dB, the rock drilling machine used to drill the ground and slamming the ground (distance 1m) is 100dB, the aircraft engine (distance 100m) is 110~140dB, and the fans blew the Vuvuzela horn ( The distance of 1 meter is 120dB. Only when the sound level reaches or is close to this loudness, we will feel real and have the so-called immersive feeling.

Of course, because our human ears are limited, it is said that when the sound level exceeds 120db, it will damage the hearing. If it exceeds 130DB, it will open the pain valve of the human ear, that is, if you are long If you are under such a loud sound, you will have earache and even bloodshed. Therefore, when making a movie, there is a limit to the sound pressure, and it is absolutely impossible to do exactly the same. For example, when I heard that there was a sniper rifle, the sound loudness was 168DB at a distance of one meter, which exceeded the range of loudness that the human ear accepted. In order to avoid the bloody sputum that everyone sees a movie, here It is impossible to restore such a true sound to a movie, and the sound level of the movie is controlled at this position of 105DB. The same is true for THX's standard sound pressure values. Only in such a sound pressure environment, we can have a similar immersive experience in watching movies, which means that you will feel the sound you hear, just like real. In this way, we can restore the original intention of sound production.


Previous: No Information

Next: Is The 4K Era Really Here?

  • Newsletter
  • Categories
  • Contact Us

    Add: 4F, 1Building, ShaSan Chuang Ye Industrial Park, ShaJing, BaoAn, Shenzhen, China

    Mob: +86-18665366718

    Tel: +86-755-81490212

    Fax: +86-755-27269760

    Email: sales@egreatworld.com

  • QR Code
  • Copyright © Shenzhen Egreat Tech Co.,Limited All Rights Reserved.