| 摘要 |
<p>The present invention refers to electron product technical field, specially refers to a kind of 7.1 channel (containing 5.1 channel and 5 channel) surround sound earphone. The earphone comprises an external plug part, a power amplifier box and an earphone body. The earphone body and the power amplifier box are connected by wire, and the input port of the power amplifier box is connected with the external plug part by wire. The plugs in the external plug part can be connected with a sound card of computer and a USB interface; the earphone body can be equipped with a microphone. Via power amplification and filtration of the power amplifier box, signal-to-noise ratio is improved, signal distortion ratio is reduced. The invention can provide with 5.1 channel horn circuitry dependence connection which is indispensable to an in-home theatre system under the requirements of Dolby Digit (AC-3) and DTS, thus good playback effect of a real surround sound is achieved, penetrable and clear sound is produced, wearing comfortableness is achieved, and others will not be influenced when using the earphone.</p> |
