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LFE - Wikipedia, the free encyclopedia (208 words) |
 | LFE, an abbreviation for Low-Frequency Effects, is commonly used in describing an audio track contained within a motion picture sound mix. |
| The LFE channel originated in Dolby Stereo 70 mm Six Track film prints, as a way of providing louder bass and sub-bass effects, without detracting from the quality of the standard audio channels. |
| 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 bass management functions to redirect bass from any channel to a subwoofer. |
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