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發表於 2013-7-5 14:33:36
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AUDYSSEY Dynamic EQ should be similar to THX Loundness Plus 
In my understanding, these 2 "EQ" are designed to correct the "perception" of lost in Dynamic of Bass & surround sound effect due to the fact human being perceive sound less sensitive at lower sound level than the "reference level", where all movies, music and games are mixed at Reference Level (0 db on the volume dial for THX Certified Receivers) in the studio.
http://www.audyssey.com/audio-technology/dynamic-eq
AUDYSSEY'S SOLUTION TO LOW VOLUME LISTENING PROBLEMS
Music, movies and games are mixed at high volumes and they’re meant to be played back at high volumes (reference level). In the studio, composers, musicians and engineers hear every detail. But in a home theater, people turn the volume down and sound quality suffers – voices change and bass and surround sound disappear.
Audyssey developed proprietary methods that calculate the differences between reference level and playback level in real time. Dynamic EQ is the first technology of its kind to combine information from incoming source levels with actual output sound levels in the room, while taking into account human perception and room acoustics. The result is something never before possible – bass response, octave-to-octave balance and surround impressions that are detailed and accurate at any volume
http://www.thx.com/consumer/thx-technology/thx-loudness-plus/
What Is THX Loudness Plus?
All movies, music and games are mixed at Reference Level in the studio, to be played back at the same Reference Level in the cinema or home theater (0 db on the volume dial for THX Certified Receivers is equal to the studio Reference Level). However, many of us find Reference Level is too loud for our homes. But, turning the volume down often means that elements of movie, music and other soundtracks are lost or perceived differently from the original sound mix.
THX Loudness Plus maintains the integrity of soundtracks when listening below Reference Level. The technology compensates for the tonal and spatial shifts that occur when the volume level is reduced. By automatically raising the levels of the ambient sound, you experience the true impact of movies, music and games regardless of the volume setting.
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樓主: samnet1
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發表於 2013-8-4 00:06:10
