Medium mixed sound resonance

Medium mixed sound resonance, sound principle, USES a vibrator vibration sound + paper eardrum trumpet sound, we often use the stereo knows that, in addition to the ordinary acoustics professional audio, general average sound heavy bass is not enough, the bass better generally have no small volume, this is mainly due to the adoption of the horn TV Speaker sound affected by voice unit cell size is very big, so a lot of multimedia audio directly USES the subwoofer, external speakers, fully expand the scope of its sound unit cell volume, but it have a lot of restriction for the Wooden Computer Speaker of the stereo sound, that is why we see stereo in the market are generally four directions, four is the cause of the angular and bass effect is not very good. Combined sound exactly is the integrity of the manufacturers of the stereo set machine, its function as complete as possible, easy to use, look gorgeous. All part of the combined sound, such as speakers, amplifiers, booth and CD are provided by the manufacturer, is to cooperate on the whole, and are more uniform in shape, beautiful; After buying customers don't need to spend a lot of time debugging, generally can be used directly, more convenient in operation, function is relatively complete. Many people believe that the quality of the audio system is not high, but in fact, with the development of electronic technology, the performance of the combined sound also have greatly improved, therefore, for the majority of users, combined sound has been completely can meet the need. Combined sound of price, quality, performance, of course, there is a great gap, have one thousand yuan level of products, also have ten thousand yuan of products, need to which kind of, can according to customer's own economic strength and the demand for choice. When there is a tree in the forest fell down, gave a crashing the loud voice, but no one in the virgin forest, so I can't hear the sound. This is not a voice out? The sound come is for sure, because when the trunk and branches of the contact with the ground, they will produce certain sounds, but no one heard, but heard this voice for humans or other animals is different, so this is what is said in the acoustic psychological (Psychoacoustics).