What is surround sound? The principle of operation of the soundbar to create surround sound

If you are a music enthusiast, like to learn about different types of sounds, you must have heard of “surround sound”. However, you can’t quite understand what surround sound is. So follow the article below, Tnhelearning.edu.vn will give you information about what is surround sound? How do soundbars produce surround sound?

What is surround sound?

• Surround Sound is a speaker system that is technically integrated to increase the fidelity and depth of sound, in order to reproduce the sound space , giving listeners a variety of sound channels . listeners have the best, most realistic sound experience.
• Surround sound is often used in cinemas you often go to because it brings a sense of vivid sound, making the listener feel like they are immersed in each movie. So you can find it easily.
• Surround sound was first used in 1940 for Disney’s animated feature film Fantasia. Walt Disney created a bee in his musical Fantasia thanks to inspiration from Nikolai Rimsky-Korsakov’s musical Flight of the Bumblebee, creating a sense of realism when it sounded as if it were flying in all parts. of the theater.

How surround sound works

There are many ways to create surround sound:

Method 1: Use surround sound recording technique

With stereo or specialized devices, the sound emitted will be recorded clearly from left to right or from right to left, helping you to clearly feel where the sound is coming from. Example: A flute player on your right, a guitarist on your left, an artist standing in the middle of the stage performing..

Method 2: Process audio using audio localization

Use a headset to simulate a two-dimensional (2D) sound field.

Method 3: Based on Huygens – Fresnel principle

Thanks to the Huygens principle, the front faces of the sound field waves are reconstructed as “acoustic holograms” by means of wave-field synthesis (WFS). From there, accurate sound reproduction, giving you a great audio experience.

Method 4: Use three Micro

Front Microphone, Side Microphone and Rear Microphone, also known as dual recording (Double MS)

Applications of surround sound

• Surround sound helps create a sound environment for all purposes. Therefore, in addition to applications for movies and soundtracks, multichannel audio techniques can be used to reproduce a variety of content such as music, languages, sounds of nature , etc.
• A live performance can use the multi-channel technique in an outdoor concert, a musical performance or to reproduce waves in a movie . Specific techniques are adapted for theater, film or home projection.

• A cinematic content is narrated enhanced by multi-channel techniques. For example: The dialogue of the characters in the movie but can also apply to plays performed in theaters, conferences,…
• Today, surround sound is also used to integrate into audio technology devices on televisions, phones , …
• At the same time, surround sound is also applied to education , for teaching purposes. Other uses include audio in video games, speakers in computers, and other platforms.

Some speaker systems use surround sound

2.1 . sound system

2.1 sound system includes: 2 satellite speakers and 1 subwoofer with bass processing effect (bass), bass will be separated in this sub. From there, create more stereo bass , more quality, improve the best sound. Therefore, if you want to buy a speaker to listen to music every day, 2.1 speakers will definitely be an ideal choice!

However, the 2.1 sound system can’t create surround sound too well, but only in stereo, so it can’t be compared to home karaoke systems.

5.1 . surround sound system

5.1 sound system includes: 6 audio channels , including 5 satellite speakers and 1 subwoofer , responsible for the following functions:

• 1 center speaker – Center: As the main speaker, reproduces the sound and emits the character’s dialogue and vocals.
• 2 front speakers – Front: Emits sound on the left and right sides, combined with the center speaker, creating a basic sound.
• 2 surround speakers – Surround: Has the effect of supporting the reproduction of the vividness of sounds such as birdsong, footsteps, clapping.
• 1 subwoofer – Sub: Responsible for emitting sound with frequencies from 20 – 200 Hz.

The above article has provided you with some information about surround sound. Hope this article helps you!