Samsung HT-BP30, Service Manual

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Samsung Electronics 14-2
2. Concept of Sound
What is Sound Range?
People can listen to the sounds with frequency between 200Hz~20.000Hz
As time goes by, home theater system has become recognized as a system that helps listen sound
closer to the original sound rather than video. In this 21st century, most movie and animation films
will be produced for home theater and reproduce sound closer to original sound.
What is Sound Pressure?
* A measure of how well speaker converts electric signal it receives to sound
* Unit of sound pressure is decibel and mainly measures the size of sound at 1 m away after
sending 1 W power from speaker.
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High sound pressure doesn't necessary mean good performance
What is Timbre?
* How well the unique sound of musical instrument is expressed
* Better if violin and cello sound are accurately distinguished. Good timbre means high quality.