As well, during the 1990s, DVDs were increasingly recorded with " surround sound " processes that included a Low-frequency effects ( LFE ) channel, which could be heard using the subwoofer in home theater systems.

In 1992, Dolby Digital's six-channel film sound format incorporated a single LFE channel, the " point one " in 5. 1 surround sound.

These configurations optionally include the extra low-frequency effects ( LFE ) channel.

refers to the LFE channel, which is also a discrete channel.

5. 1, offered 5. 1-channel support which adds a center channel speaker and LFE subwoofer output, most useful for movie watching.

( The ". 1 " denotes a Low-frequency effects channel ( LFE ) for bass and / or special audio effects.

Before the bass management system there is a Low Frequency Effects ( LFE ) channel.

A common misunderstanding is the belief that the LFE channel is the " subwoofer channel ".

The bass management system may direct bass to one or more subwoofers ( if present ) from any channel, not just from the LFE channel.

Also, if there is no subwoofer speaker present then the bass management system can direct the LFE channel to one or more of the main speakers.

The LFE channel was originally developed to carry extremely low " sub-bass " cinematic sound effects ( with commercial subwoofers sometimes going down to 30 Hz, e. g., the loud rumble of thunder or explosions ) on their own channel.

In the original movie theater implementation, the LFE was a separate channel fed to one or more subwoofers.

Home replay systems, however, may not have a separate subwoofer, so modern home surround decoders and systems often include a bass management system that allows bass on any channel ( main or LFE ) to be fed only to the loudspeakers that can handle low-frequency signals.

The salient point here is that the LFE channel is not the " subwoofer channel "; there may be no subwoofer and, if there is, it may be handling a good deal more than effects.

These labels sometimes use the LFE channel to carry a height channel, underlining its redundancy for its original purpose.

This notation, e. g. " 5. 1 ", reflects the number of full range channels ; including a ". 1 " to reflect the limited range of the LFE channel.

2 basic stereo speakers with no LFE channel

5 full-range channels + 1 LFE channel =

3 front channels + 2 side channels + an LFE channel = 3 / 2. 1

While LFE channels originated in Dolby Stereo 70 mm film prints, they became commonplace in the 1990s and 2000s in home theater systems used to reproduce film soundtracks for DVDs and Blu-rays.

Later formats such as Dolby Digital retained the LFE channel, although this is more through convention and backwards compatibility than necessity, as digital formats have greater dynamic range than the magnetic analogue recordings on 70 mm prints, and modern sound processors have a bass management system to redirect bass from all channels to a subwoofer.

The LFE channel is used to carry additional bass information in the Dolby Digital program, while the subwoofer output is bass information from up to all six channels that has been selected to be reproduced by the subwoofer via a bass management system.

The basic and most common version of the format is a 5. 1-channel system, similar to a Dolby Digital setup, which encodes the audio as five primary ( full-range ) channels plus a special LFE ( low-frequency effects ) channel for the subwoofer.

The LFE channel is conventionally played back 10 dB louder than the main channels, giving significantly more recording headroom.

The LFE channel delivers bass-only information to supplement the overall bass content.

The bass management system may direct bass to one or more subwoofers ( if present ) from any channel, not simply the content of the LFE channel.

All bass from the left channels are directed to a left LFE channel while right channel bass is directed to the right LFE channel.

The low-frequency effects ( LFE ) channel is the name of an audio track specifically intended for deep, low-pitched sounds ranging from 3-120 Hz.

Many typical home theater systems, especially " home theater in a box " systems, are incapable of accurately reproducing LFE effects in the 20 Hertz range.

It can also be expressed as the number of full-range channels in front of the listener, separated by a slash from the number of full-range channels beside or behind the listener, separated by a decimal point from the number of limited-range LFE channels.

The widely-used 5. 1-channel audio system consists of five full range main ( Left, Center, Right, Left rear Surround, and Right rear Surround ) plus a Low-Frequency Effects ( LFE ) channel.

Other, newer DTS variants are also currently available, including versions that support up to seven primary audio channels plus one LFE channel ( DTS-ES ).

Some record labels such as Telarc and Chesky have argued that LFE channels are not needed in a modern digital multichannel entertainment system.

They argue that all available channels have a full frequency range and, as such, there is no need for an LFE in surround music production, because all the frequencies are available in all the main channels.

3 front channels + 2 rear channels + 3 channels reproduced in the rear in total + 1 LFE channel = 3 / 2: 3. 1

Over seven full-range 24-bit / 96 kHz discrete channels are supported ( plus a LFE channel, making it 7. 1 surround ) along with the HDMI interface.

* Two LFE channels: LFE Left and LFE Right

* Two LFE channels: LFE Left, LFE Right

After 3 years, LFE discontinued the festival and it was brought home to Chesterton by the Duneland Business Initiative Group in 2009.

The LFE is a source of some confusion in surround sound.

In countries where most networks broadcast identical, centrally originated content to all their stations and where most individual TV transmitters therefore operate only as large " repeater stations ", the terms " television network ", " television channel " ( a numeric identifier or radio frequency ), and " television station " have become mostly interchangeable in everyday language, with professionals in TV-related occupations continuing to make a difference between them.

The Texas company purchased a 250, 000 watt RCA transmitter to beam an omni-directional clear channel signal on AM 1570, which originated some distance from the old XERA facilities within three new prefabricated concrete buildings with flat roofs.

WMTY, an evangelical ministry and Public-access television cable TV station, originated in Jasper, Alabama, but began broadcasting in Hamilton in 1995 on TV antenna digital channel 46, and is owned and operated by William E. " Pete " Nichols.

The term " clear channel " is used most often in the context of North America and the Caribbean, where the concept originated.

On February 15, 2005, the TechTV brand was dropped from the United States G4techTV feed, leaving the network name as G4 – Video Game Television which also echoed the changes in programming made to the channel due to the merger for both G4's original offering and the greatly diminished TechTV originated shows ( exceptions noted below ); since then, G4 has gone through a rebranding and has changed all programming current and future to position itself as a male oriented network.

Launching on September 2, 1986, MusiquePlus first originated with only an eight hour schedule, sharing channel space with TVJQ ( a predecessor of VRAK. TV ); it consisted of music videos and interviews and performances that were taped from a studio on Boulevard St. Laurent in Montreal.

Since ancestral lemurs are thought to have originated in Africa around 62 to 65 mya, they would have had to have crossed the Mozambique Channel, a deep channel between Africa and Madagascar with a minimum width of about 560 km ( 350 mi ).

The name is said to be originated from the fact that " everyone knows a bloke called Dave ", and that the name seems appropriate for a male-orientated channel.

The company, founded by Julian Sinclair Smith, originated in 1971 as the Chesapeake Television Corporation with the launch of WBFF ( channel 45 ) in Baltimore.

Previously named " Festival ", and specializing in theatre, opera and French-language and other European originated drama, it is a channel for young adults ( similar to BBC Three: sports, sitcom, arts, music and entertainment ).

MTV Cribs and CMT Cribs, depending on which channel it airs, is a franchise reality television program that originated on the MTV Networks ' MTV.

Upper Cedar Creek originated as an ice-marginal channel at the western edge of the Erie Lobe of the Wisconsin Glacier and formed a single stream with the southwest-flowing Eel River which connected to the Wabash River.

The river originated in the melting, retreating ice sheet, and it flowed east through this channel on its way to the sea.

It originated from a channel called tm3.

In early March 2008, the station added its first locally originated, locally oriented regular program — a three-hour program hosted by former WMAQ-TV channel 5 political editor Dick Kay.

The WBMX intellectual property originated on the 98. 5 FM frequency, which signed on in October 1948 as WNAC-FM under the ownership of the Yankee Network division of General Tire and Rubber, which also owned WNAC ( then at 1260 AM, now occupied by WMKI ; moved to 680 AM in 1953 ) and WNAC-TV ( channel 7, now occupied by WHDH ).