If you are in the market for a brand new surround sound system I'm pretty sure you've been a little baffled by all the options, bells, whistles, gadgets, gizmos, and price tags on the market today. Trust me, you are not alone. One of the most baffling things to many potential surround sound system consumers is where on earth should you put all the speakers. I intend to answer that question and a few more over the course of the next few paragraphs and hope that you will read along.
The first thing you need to understand is that there are several different types of surround sound systems. The industry standard and most common is the 5.1 channel surround sound system. This set up calls for the use of five speakers plus one subwoofer in addition to the receiver. The five speakers are the front speakers which include a left, right, and center speaker and the left and right surround speakers that are located to the left and right from the rear. You should also have a subwoofer located behind you in order to create the bass notes of sound. The next two types of surround sound systems include the 6.1 channel and 7.1 channel system. The primary differences in these are the addition of one additional speaker for each.
You will be glad to know that most receivers will accommodate the 8 total speakers of a 7.1 channel surround sound system but you may want to check in order to be certain you can upgrade if you chose to buy a 5.1 channel system for the time being. The addition of speakers when you upgrade change the layout of the speakers in your home. The more speakers you have, the greater sound you will enjoy, however, the better the quality of your speakers, the better quality your sound will have. In other words don't go with lower quality speakers in the beginning in order to have more speakers, as you will be shooting the quality of sound you can experience in the foot. It is better to buy fewer speakers in the beginning and add to your system over time in order to receive better quality.
I trust that what you've read so far has been informative. The following section should go a long way toward clearing up any uncertainty that may remain.
When it comes to the placement of the additional speakers if you upgrade to a 6.1 channel surround sound system you will move the speakers currently in the left and right rear to the left and right side and place the new speaker in the center back. If you then upgrade to the 7.1 channel surround sound system you will move the speaker that is in the center to the rear left and place the new speaker to the rear right. This allows you to be literally surrounded by the sound in order to maximize your listening experience.
Of course this is only a recommendation and it is entirely up to you what will work best within your home and according to your tastes and wants in a surround sound system. Not everyone hears music or sound the same and the experience for each will vary greatly from one person to the next. For this reasons it is also a good idea to be sure you have listened to the system in a store before deciding on one and bringing it home. This is a wise decision regardless. I also recommend taking more than one CD or DVD for the listening process in order to make sure the quality is consistent through different mediums.
While the setup of your system is very important to the sound experience it is quite difficult provided you follow the directions (you didn't forget to read those did you?). Whether this is your first home theater or surround sound system or one of many upgrades you've made along the way I'm sure you will agree that the sound is far superior to the two speaker systems of days not that long ago.
Hopefully the sections above have contributed to your understanding of surround sound systems. Share your new understanding about surround sound system with others. They'll thank you for it.
Surround Sound Systems With
Surround sound is the concept of expanding the spatial imaging of audio playback from 1 dimension (mono/Left-Right) to two or three dimensions. It is often employed for a more realistic audio environment, actively implemented in cinema sound systems, technical theatre, home entertainment, video arcades, computer gaming, and a growing number of other applications. Many popular surround sound formats have evolved over the years. They include ambisonics, quadraphonic, Dolby 5.1 Surround sound, DTS, and MP3 Surround.
Surround sound can be created using several methods. The simplest to understand uses several speakers around the listener to play audio coming from different directions. Another approach involves processing the audio using psychoacoustic sound localization methods to simulate a 3D sound field using headphones. The third approach, wave field synthesis, uses a very large number of speakers to generate the "audio hologram" of the original audio in the whole room (as of 2004 the only commercial implementation of this is Iosono). Surround sound is not limited to placement of speakers along a flat (2-dimensional) plane. Vertically-located audio sources can be considered.
Dolby Digital (DD) uses the AC-3 file format, which any Dolby Digital Decoder can decode to produce 5.1 audio. Dolby Digital is the technical name for Dolby's multi-channel digital sound coding technique, more commonly referred to as Dolby 5.1. A six-channel sound coding process originally created by Dolby for theaters, AC-3 was subsequently adapted for home use and is now steadily becoming the most common sound format for DVD.
Six discrete audio channels:
•3 for speakers at the front - left (L), center (C), and right (R)
•2 for surround speakers at the side or rear - surround left (SL) and surround right (SR)
•1 low-frequency effects (LFE) channel carries supporting deep bass sound effects, ranging from 10 Hz to 120 Hz, which can for example be used by a subwoofer. (This is the '.1' in '5.1'.)
DTS is an encode/decode process that delivers 5.1 channels of "master quality" audio on CD, CD-R, and DVD. Each DTS encoded disc represents a sonic "clone" of the original film soundtrack.
The difference between Dolby Digital (AC-3) and DTS is:
•DTS provides a deeper and tighter low frequency presence
•DTS allows the sound to breath - transparency
•AC-3 leaves the impression that something is missing from the mix
•At lower bit-rate AC-3 starts to sound like MP3's encoded at a low-quality 96kbps
(artifacts)
DTS is more three dimensional. The sound actually moved forward from the individual speakers to sound more full. This fullness was most apparent with the music. Instead of simply coming from the speakers, the DTS filled the front soundstage not only side to side, but with more depth as well. Bass reproduction was also more defined in the DTS version, leaving the DD edition sounding muddy.
Dolby Digital incorporates dialog normalization, which alters the decoded level of the soundtrack. The typical setting reduces level by 4 dB; other reduction levels are possible. In most decoders, this leads to a reduction in signal-to-noise and dynamic range.
Dolby Digital also provides a "stereo down mixing" feature as a substitute for a dedicated stereo mix. However, many production engineers have admitted that they often have to modify the original 5.1 mixes in order to attain acceptable stereo down mixes. Therefore, the 5.1 mix on many Dolby Digital DVDs may differ from the original master.
5.1 Surround Sound Headphones:
While the traditional method of surround sound described above uses numerous speakers to produce the entire sound field, the surround sound mix is limited to a two-channel stereo mix when using headphones. That is why recent developments in surround sound technology include 5.1 surround sound headphones, to allow you to have the same sound quality and surround sound experience without waking the neighbors or disturbing roommates.
Both Jawahn R Thompson & Mitch Medford are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.