How to setup surround sound

One of the main reasons is the immersive and lifelike listening experience that they offer. With a surround sound system, the listener is able to hear sounds coming from all directions, creating a sense of spatial awareness and immersion. This can make the experience of watching movies or playing games much more engaging and realistic.

Another reason why people like surround sound systems the enhanced audio quality is. With a properly configured system, the sound is more balanced and lifelike, allowing the listener to hear all of the details and nuances in the audio. This can be especially noticeable when listening to music or watching movies with complex soundtracks.

Table of Contents

What is surround sound system?
- 2.1 surround sound system
- 5.1 surround system vs 7.1 surround sound system
How does a surround sound system work?
- AV receivers
- Decoders
- Select cables for specific inputs and outputs
- HDMI
- Digital coaxial and optical inputs
- Multi-channel analog connections
- Speaker terminals
- Subwoofer preamp outputs
Room setup
Speaker setup
Tuning PC

What is surround sound?

Surround sound is a type of audio technology that aims to create an immersive listening experience by placing speakers around the listener. It is commonly used in home theaters, movie theaters, and video game systems to enhance the perceived audio quality and create a sense of immersion.

There are several different surround sound configurations, each with its own unique setup and characteristics. The most common type is 5.1 surround sound, which consists of five main speakers and one subwoofer. The main speakers are placed in a semi-circle around the listener, with one in the center, two on either side, and two at the back. The subwoofer is responsible for producing deep bass sounds, and is usually placed somewhere in the front of the room.

Another popular configuration is 7.1 surround sound, which adds two additional speakers to the mix, one on each side of the listener. This setup is often used in larger rooms or home theaters, and provides a more immersive and realistic soundstage.

Surround sound can be achieved through a variety of different methods, including Dolby Digital, DTS, and THX. These systems encode the audio signal and place it in specific locations within the soundstage, allowing the speakers to reproduce the sound as it was intended to be heard.

One of the main benefits of surround sound is the ability to create a sense of spatial awareness and immersion. By placing speakers around the listener, the sound seems to come from all directions, creating a more lifelike and engaging experience. This can be particularly useful for movies, where the sound design plays a critical role in creating the overall atmosphere and mood.

Surround sound can also be used to enhance the audio quality of music, allowing the listener to hear the individual instruments and vocals in greater detail. This can be particularly useful for live recordings, where the soundstage is more complex and dynamic.

The most common setups are 5.1, 7.1, and 9.1. These figures refer to the number of channels, but what do they really mean? The standard speaker units are indicated by the first number (before the decimal point).

The second number (after the decimal point) indicates the number of low-frequency channels. It is subjected to a low-pass filter, which reduces frequencies above 120Hz. Occasionally, you’ll encounter a three-digit choice (e.g. the Sennheiser Ambeo Soundbar is a 5.1.4 system). The third number denotes the usage of aerial speakers, or in the case of the Ambeo, upward-firing speakers. It may appear to be excessive. However, if you want to fully utilize Dolby Atmos technology, overhead speakers allow for more accurate audio reproduction by adding height information.

Overall, surround sound is a powerful tool for creating an immersive and engaging listening experience, whether you’re watching a movie, playing a video game, or listening to music. While it does require additional equipment and setup, the benefits are well worth it for those who are serious about their audio quality.

2.1 surround sound system

2.1 surround sound systems are commonly used in small to medium-sized rooms, such as bedrooms or home offices. They offer a more compact and affordable alternative to larger surround sound setups, and can still provide an immersive listening experience for movies, music, and video games.

However, it’s important to note that a 2.1 surround sound system does not offer the same level of immersion and spatial awareness as a larger 5.1 or 7.1 surround sound system. The lack of rear speakers means that the soundstage is more limited, and it may not be as effective at creating a sense of immersion.

5.1 surround system vs 7.1 surround system

5.1 and 7.1 surround sound are both popular configurations for home theaters and other audio setups. Both configurations consist of multiple speakers arranged around the listener, with the goal of creating an immersive and lifelike soundstage. However, there are a few key differences between the two that are worth considering when deciding which one is right for you.

One of the main differences between 5.1 and 7.1 surround sound is the number of speakers. As the names suggest, 5.1 surround sound consists of five main speakers and one subwoofer, while 7.1 surround sound consists of seven main speakers and one subwoofer. The additional two speakers in a 7.1 system are placed on either side of the listener, and are responsible for reproducing sounds from the front and rear of the soundstage.

Another key difference between the two is the size of the room they are typically used in. 5.1 surround sound is better suited for smaller to medium-sized rooms, while 7.1 is generally better for larger rooms or home theaters. The additional speakers in a 7.1 system provide a more immersive and lifelike soundstage, but may be overkill in a smaller room.

In terms of sound quality, both 5.1 and 7.1 surround sound systems are capable of producing high-quality audio. However, the 7.1 system does have an advantage in terms of spatial awareness and immersion. The additional two speakers allow for a more realistic and detailed soundstage, with sounds seeming to come from all around the listener.

Overall, the choice between 5.1 and 7.1 surround sound will depend on your individual needs and preferences. If you have a larger room or home theater and want the most immersive and lifelike listening experience possible, 7.1 may be the better choice. However, if you have a smaller room or are on a budget, a 5.1 system may be more practical and still provide an enjoyable listening experience.

How does a surround sound system work?

At the heart of a surround sound system is the audio receiver, which is responsible for amplifying the audio signal and sending it to the speakers. The audio signal is typically encoded with information about the location of each sound within the soundstage, allowing the speakers to reproduce the sound as it was intended to be heard.

There are several different configurations for surround sound systems, including 5.1, 7.1, and 9.1. The number refers to the number of main speakers in the system, with the .1 referring to the subwoofer, which is responsible for producing deep bass sounds.

In a 5.1 surround sound system, there are five main speakers and one subwoofer. The main speakers are placed in a semi-circle around the listener, with one in the center, two on either side, and two at the back. The subwoofer is usually placed in the front of the room.

In a 7.1 surround sound system, there are two additional speakers placed on either side of the listener. This configuration is often used in larger rooms or home theaters, and provides a more immersive and realistic soundstage.

Overall, a surround sound system works by using multiple speakers to create a lifelike and immersive soundstage, allowing the listener to hear sounds coming from all directions. By encoding the audio signal with information about the location of each sound, the speakers are able to reproduce the sound as it was intended to be heard, creating a more engaging and realistic listening experience.

AV receivers

An AV receiver, or audio/visual receiver, is a central component in a home theater or surround sound system. It is responsible for amplifying the audio signal and sending it to the speakers, as well as processing and switching the video signal to the display device.

One of the main functions of an AV receiver is to amplify the audio signal and send it to the speakers. It has multiple channels, each of which is responsible for driving a separate speaker. For example, a 5.1 surround sound system would require a receiver with at least five channels, while a 7.1 system would require seven channels. The receiver amplifies the audio signal and sends it to the appropriate channel, allowing the speakers to reproduce the sound.

In addition to amplifying the audio signal, an AV receiver also processes and switches the video signal. It has multiple HDMI inputs, which allow you to connect various audio and video sources, such as a cable box, Blu-ray player, or game console. The receiver can then switch between these sources and send the appropriate video signal to the display device, such as a TV or projector.

Another important feature of an AV receiver is the ability to decode various audio formats. Most receivers are equipped with support for Dolby Digital, DTS, and other surround sound formats, which allows them to decode the encoded audio signal and send it to the appropriate speakers. This allows the listener to experience the full range of sound as it was intended to be heard.

AV receivers also come with a variety of other features and controls, such as equalization, bass and treble controls, and automatic speaker calibration. These features allow the user to fine-tune the audio to their liking, and ensure that the sound is balanced and properly calibrated for the room.

In terms of power, AV receivers are rated in watts per channel. The higher the wattage, the more powerful the receiver is and the louder it will be able to drive the speakers. It’s important to choose a receiver with enough power to drive your speakers to the desired volume, but be aware that more power doesn’t necessarily mean better sound quality.

Decoders

They are commonly used in home theaters and other audio and video systems to decode encoded audio signals and send them to the appropriate speakers.

There are many different types of decoders, each designed to handle a specific type of encoded signal. For example, Dolby Digital decoders are designed to handle Dolby Digital audio signals, while DTS decoders are designed to handle DTS audio signals. Similarly, there are decoders for various video formats, such as H.264 and H.265.

Decoders are important because they allow the listener or viewer to experience the full range of sound or video as it was intended to be heard or seen. Without a decoder, the encoded signal would be garbled and unusable.

In addition to decoding audio and video signals, some decoders also offer other features, such as equalization, bass and treble controls, and automatic speaker calibration. These features allow the user to fine-tune the audio or video to their liking, and ensure that the sound is balanced and properly calibrated for the room.

You should also consider decoder compatibility. AV receivers generally have multiple decoders. A excellent beginning point is to look for a Dolby Digital-ready receiver: Dolby Digital is used by every DVD and all HD broadcasts in the United States. These approved receivers contain additional channel inputs and amplifiers, as well as a Dolby Digital decoder. If you’re putting together a 7.1 system, search for a receiver that supports Dolby Digital Plus.

Select cables for specific inputs and outputs

There are numerous connectors on AV receivers. You can learn everything there is to know about audio hookups right here. Continue reading for a quick rundown of the most common inputs and outputs for surround sound receivers. Only some of these connections may be utilized depending on the type of 5.1 configuration you’ve purchased and your pre-existing peripherals.

HDMI

HDMI is required for current home entertainment setups. It is utilised for all HD and 4K sources (e.g. Blu-ray players, cable boxes, and gaming consoles). Receivers typically include two to four HDMI inputs and an output that connects to your TV. If your receiver supports HDMI ARC, you’ll have fewer cords to connect from the speakers to the receiver box. A low-cost, high-quality HDMI cable is available almost anyplace.

Digital coaxial and optical inputs

Digital coaxial and optical inputs are two different types of connections that are commonly found on AV receivers and other audio and video devices. Digital coaxial inputs use a coaxial cable to transfer the digital audio signal, while optical inputs use fiber optic cables. Both types of inputs are capable of transferring high-quality digital audio signals, and are commonly used in home theaters and other audio and video systems. The choice between the two will depend on the specific needs and preferences of the user, as well as the compatibility of the devices being used.

Multi-channel analog connections

Multi-channel analog connections are used to transfer multiple channels of analog audio from one device to another. They are commonly found on AV receivers and other audio and video devices, and are used to connect components such as CD players, DVD players, and turntables. Multi-channel analog connections typically use RCA cables or XLR cables to transfer the audio signal. They are generally less common than digital connections, but are still used by some users due to the perceived superiority of analog audio.

Speaker Terminals

Speaker connections are essential when putting together a home theatre system. This network of links may appear daunting, but it should be clearly labelled. You should be able to view the front, centre, surround, and so on. Speaker wire and banana plugs are used to connect speakers here. If you don’t want to mess with connecting the wires to the plugs, acquire these.

All you have to do is connect each speaker to its appropriate connection. The centre channel speaker, for example, must be connected to the center-labeled connectors. Furthermore, ensure that the speaker wire is correctly polarised. To avoid phase cancellation caused by mismatched polarity, utilise positive (red) to positive and negative (black) to negative.

Subwoofer preamp output

The subwoofer preamp output allows the AV receiver or other device to send a dedicated low-frequency audio signal to the subwoofer, allowing it to produce deep and powerful bass. Subwoofer preamp outputs are typically found on the back of the AV receiver or other device and are usually labeled as “subwoofer out” or “LFE out”. A subwoofer cable is needed for this.

You should reconfigure and optimize the area for acoustic purposes just as you would with any home theatre setup, whether it’s a soundbar or a full-fledged surround sound system. You could simply remove the room and convert it into a separate theatre, but this is far more cost effective

Room setup

The room setup is an important factor to consider when setting up a surround sound system. The placement of the speakers and the listener can have a significant impact on the overall sound quality and immersion. Here are a few tips for setting up a surround sound system in a room:

Choose a central location for the surround sound system. This will typically be in a living room or home theater, and should be a central location in the room where you’ll be able to comfortably hear the sound from all of the speakers.
Place the main speakers around the room. In a 5.1 surround sound system, there will be five main speakers – one in the center, two on either side of the room, and two at the back. In a 7.1 system, there will be two additional speakers on either side of the room. Place the speakers at equal distances from the listener, with the center speaker directly in front of the listener.
Place the subwoofer in a suitable location. The subwoofer is responsible for producing deep bass sounds, and can be placed anywhere in the front of the room. Just make sure it’s not too close to the walls, as this can cause the bass to sound boomy and distorted.
Consider the shape and size of the room. The size and shape of the room can have an impact on the sound quality of the surround sound system. In general, it’s best to place the speakers in a semi-circle around the listener, with the center speaker directly in front. This helps to create a sense of immersion and spatial awareness.
Test the surround sound system by playing a variety of content and adjusting the speaker placement as needed. It may take some trial and error to find the optimal speaker placement for your room, but the result will be worth it.

Overall, the room setup is an important factor to consider when setting up a surround sound system. By following these tips and adjusting the speaker placement as needed, you can create an immersive and lifelike listening experience.

Speaker set up

The arrangement of the speakers in a surround sound system can have a significant impact on the overall sound quality and immersion. Here are a few tips for arranging the speakers in a surround sound system:

Place the main speakers in a semi-circle around the listener. In a 5.1 surround sound system, there will be five main speakers – one in the center, two on either side of the room, and two at the back. In a 7.1 system, there will be two additional speakers on either side of the room. Place the speakers at equal distances from the listener, with the center speaker directly in front.
Place the front and rear speakers at an angle to the listener. The front and rear speakers should be angled slightly towards the listener, rather than being pointed directly at them. This helps to create a sense of depth and spatial awareness in the soundstage.
Place the side speakers at an angle to the front and rear speakers. The side speakers should be placed at an angle to the front and rear speakers, rather than being pointed directly at them. This helps to create a sense of width and immersion in the soundstage.
Consider the size and shape of the room. The size and shape of the room can have an impact on the sound quality of the surround sound system. In general, it’s best to place the speakers in a semi-circle around the listener, with the center speaker directly in front. This helps to create a sense of immersion.

Tuning PC

It’s 2023, and home theatre technology has advanced significantly. Allow your computer to perform the heavy lifting with your home entertainment setup if you truly want to geek out!

Purchase a DSP box, such as the miniDSP 24 HD, as well as a test microphone, such as the miniDSP UMIK-1. (Editor’s note: make certain that the box you chose has adequate output channels. You may require a more serious box.
Install Room EQ Wizard or the software that came with your DSP box and set up your home theatre.
Connect the inputs to the DSP box, then the outputs to the appropriate receiver inputs.
Follow the recommended equalisation steps, including positioning the microphone where you’d ordinarily listen.
The computer will decide the ideal equalization parameters after a few test sweeps and export them to the DSP box.
You’re done! Disconnect your computer.

The advantage of including a DSP box in your setup is that it optimizes the sound that reaches your ears for the room you’re in. Rather than tediously altering fine settings, the computer knows what’s best and can even take your feedback on how you prefer to hear your sound. By including a DSP box, you are:

Giving your speakers a signal that is tailored for your listening environment
Making it easy for your speakers to operate well by sending specific sounds to your subwoofer while leaving the other channels to focus on what they were designed for.
Adjusting the speaker timing to guarantee that every sound reaches you at precisely the proper time, as some people forget that sound travels at a rather slow rate. When you place speakers far apart, it can cause discrepancies in when notes reach you, giving the appearance of an echo. It’s nerdy and pricey, but it maximizes the performance of any system.

You’ll be more involved in your favourite movies and shows if you spend an hour or so setting up your surround sound system. Certainly, “immersion” is a trendy marketing tactic, Investing in recreational items, such as at-home cinema, is an investment in yourself.

In addition to enhancing the audio experience, surround sound can also be useful for improving the clarity and intelligibility of dialogue and other sounds in a recording. This can be especially beneficial for individuals with hearing loss or for those who are watching or listening to content in a noisy environment.

How to Setup Surround Sound