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Surround sound is a term widely used in the world of audio to describe a specific type of audio system that creates a three-dimensional sound experience. It aims to immerse the listener in a rich audio environment that enhances their overall entertainment experience, whether they are watching a movie, playing a video game, or simply listening to music. One popular device that delivers surround sound is the soundbar. In this introduction, we will explore what surround sound is and delve into the principle of operation of the soundbar, which has become increasingly popular for its ability to create an immersive audio experience.
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, Thptlaihoa.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 avariety 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!
In conclusion, surround sound is a technology that aims to provide a more immersive audio experience by creating the illusion of sound coming from all directions around the listener. It involves the use of multiple audio channels and speakers strategically placed in a room to accurately reproduce sound effects and create a more realistic and captivating audio environment. Soundbars have emerged as a popular solution for achieving surround sound without the need for extensive speaker setups. They utilize advanced audio processing algorithms and speaker arrangements to deliver a similar surround sound experience in a more compact and convenient package. By strategically directing sound waves and utilizing techniques like virtualization, acoustic reflection, and directionality, soundbars are able to create a wider soundstage and a sense of depth, making it seem as if the sound is coming from various directions. With the advancements in surround sound technology, soundbars have become an accessible and effective audio solution, offering an enhanced cinema-like experience in the comfort of our own homes.
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