Surround Sound Systems

Surround sound wireless

The speaker is excited electromechanical power converter that produces a sound signal intended for the human ear, i.e. sound frequency range of 20 to 20,000 Hz. The term speaker is also often used for speaker box too, that contains one or more speaker units, i.e. speakers in the narrow sense.

That would be one from many definitions of sound speakers. Now days we have something more than sound speakers, we have surround sound speakers.

Schedule of sound sources

• Sounds of the environment are the first and main thing that separates the traditional television viewing from “home theater” applications. In multi-channel home theater sound source, such as for example DVD, playing through the three standard speakers, while a smaller surround speakers create sound environment. The point of this way of distribution of sound sources is to transform you to the world that you are looking and make a feeling that you participate, not just to follow the action on TV or DVD player.

There are many kinds of surround sound speakers and I will mention a few of them in this text.

Quadraphonic

1. 1. channel surround sound speakers
      Pulls four audio channels from specially coded analog two channel signal or four-channel signal.

   2. Designed for music, and media recorded in Quadraphonic format are LP and cassette. He is also known as the four-channel stereo.

Four identical speakers are placed at ear height, angle of 45 °. All speakers should be equidistant from the central place in the room

Dolby Digital surround sound speakers

Leading sounds technology is called Dolby Digital. It is, in fact, a method of storing digital audio signals on a compact high quality media. Devices and media that use this technology for decoding usually have Dolby official logo.

5.1 Surround Sound
Number five is the number of channels, while the sixth channel, which is responsible for the low frequencies are marked 1 (low-frequency effects channel – LFE).

Dolby Pro Logic

1. 1. channel surround sound speakers
      It pulls four audio channels from specially coded analog two channel signal.
      The media recorded in Dolby Pro Logic format are VHS and Laser Disc, and are also used to cable and satellite television, called Dolby Surround.

   2. The front sound speakers are set to be on the edge of the screen, and rear speakers should be back in the height of ear, behind the listeners. You can put the center speaker above or below the TV, also in the height of your ear.

Dolby Pro Logic II surround sound speakers

channel surround – 3-2 stereo
Pulls out five audio channels from specially coded analog two-channel stereo signal or signals.

Surround is often called the stereo and 3-2, it refers to the configuration of speakers, which means three front speakers and two rear.

Media recorded in Dolby Pro Logic II format are the PlayStation 2 and GameCube games, as well as some Wii games (marked with Pro Logic II)
Speakers are placed so that the left and right speakers are at an angle of 30 °, while the rear speakers at an angle of 110 degrees. Central speaker is placed between the left and right surround sound speakers.