5.1 Surround Sound Playback System; Mounting The Microphone - DPA 5100 User Manual

Mobile surround microphone

User manual (7 pages)

Table of Contents

5.1 surround sound playback system

In order for you to benefit fully from the intended surrounding effect of the 5100, it is advisable that you are familiar with the 5.1 surround playback setup.

"5" refers to the number of full range discrete channels, ".1" refers to the frequency limited range of the LFE (Low Frequency Effects) channel.

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Two full frequency range channels for speakers at the front: Left (L) and Right (R).

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One full frequency range channel for speaker between left and right: Center (C).

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Two full frequency range channels for surround speakers at the rear: Left Surround (LS) and Right Surround (RS).

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One Low Frequency Effects channel (LFE).

5.1 surround (also known as 3-2 Stereo: three front speakers and two rear speakers) delivers five discrete audio channels and 1 LFE channel from a six-channel

source. Source media, usually DVD and satellite/digital cable, is often branded with "Dolby Digital" and/or DTS logos. Publically available digital discrete coding

formats are Dolby Digital 5.1, Dolby AC-3, and DTS (Digital Theater System).

Placement: 5.1 speaker layouts should conform to the ITU-R BS.775 standard:

The ITU (International Telecommunication Union) standard states that the left and right speakers

are located at ±30˚, while the rear speakers should be positioned approximately ±110˚ off center axis.

• Three identical front speakers.

• Equal arrival time (radius) between mix position and each speaker.

• If placed behind a silver screen, the screen should be acoustically transparent.

• Surround speakers placed within 100˚ and 120˚.

If more than two surround speakers, symmetrically placed on radius between 60˚ and 150˚.

• LFE runs to separate subwoofer or equally to left/right, and is played back at +10 dB level.