For Listening Test Is able to reproduce same sound pressure, speech intelligibility and sound quality for all the students through the LUCID speaker installed in the center Ceiling of the classroom, which Resolve problems such as score deviation on the seat location.
Merit Of Lucid Speaker For Listening Test :
Providing the same sound pressure, Speech intelligibility and sound quality to all listeners - Lucid Speaker provides the same sound pressure, Speech intelligibility and sound quality to all listeners in the listening ares
Reducing the howling problem - It is possible to reduce the howing sounds because not only there is a relatively long distance between microphone and the speaker but also the sounds spread in every direction resulting in the sound energy flow into the microphone
Minimizing sound leakage to the outside of classroom - It can minimize the sound leakage to the outside of classroom because the relatively short distance between the speaker and students and possible to reproduce sufficient sound pressure using a low sound volume.
Using the existing sound systems - All existing sound systems can be re-used and replace speaker to Lucid Speaker only
Commercial Area - Store, Coffee Shop, Convention Center
Residential Area - Parking Lot, Hallway, Living Room
Public Space - Lobby, Meeting Room, Waiting Room
Difficult to deliver clear speech signal to the people between speakers
Big difference of sound quality and speech intelligibility depending on the location of listeners
Needs more Speakers & Cost.
Decreasing speech intelligibility due to the reflected sound by the wall because the speakers are heading toward the wall
Big Difference in sound quality and speech intelligibility depending on the location of listeners
Needs to more speakers and cost
Enhance speech intelligibility by minimizing reflected sound and maximizing direct sound to all listeners
Reproducing same high quality sounds to everywhere in listening area.
Reproducing Surround sound to all listeners in listening area.