2results about How to "Hear clearly" patented technology

The invention discloses a high-speed rail waiting hall intelligent broadcasting system capable of automatically adjusting frequency and volume, and belongs to the technical field of intelligent broadcasting, and the system comprises an information collection module which is used for collecting background noise sound signals in a waiting hall in real time; the noise identification module is used for identifying volume and frequency information in the background noise sound signal; the data processing calculation module is used for calculating the current human ear sensitive frequency and volume in the waiting hall and dynamically adjusting the volume and broadcasting frequency of a loudspeaker; the broadcast control system is used for generating an adjusting instruction according to the adjusted volume and broadcast frequency; the broadcast regulator is used for automatically regulating the volume and the broadcast frequency of the loudspeaker according to the regulation instruction; and the loudspeaker is used for playing the broadcast information. According to the invention, the background noise condition in the waiting hall can be captured in real time, the volume and frequency of noise are identified through intelligent analysis, and the volume and frequency of broadcast are dynamically adjusted, so that the definition of broadcast and the comfort level of passengers are improved.

The utility model provides a kind of sound post speaker box, including shell and mesh cover, the shell is equipped with sealed installation cavity, the installation cavity is equipped with loudspeaker unit and two reverse phase pipes, two the reverse phase pipes are symmetrically equipped in the two ends of the loudspeaker unit along the length direction of the shell, the first passageway for the loudspeaker unit sound is passed out and two second passageways located at the two ends of the first passageway are set on the front side wall of the shell, one end of two the reverse phase pipes is located in the installation cavity, the other end is connected to two the second passageways respectively, so that the installation cavity is communicated with outside by two the reverse phase pipes, the mesh cover is connected on the front side wall of the shell.The utility model discloses a sound post speaker box, which can effectively expand the audio range, reduce the timbre distortion, more completely restore the sound effect, and improve the authenticity of the audience to obtain the sound.