Bluetooth earphone capable of reducing audio background noise

• Main Authors: HUANG ZHISHUN, LI XUN
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The utility model discloses a Bluetooth earphone capable of reducing audio background noise, and the earphone comprises a Bluetooth chip which is used for transmitting an audio signal inputted by a system; the audio processing module is connected with the Bluetooth chip and has a voltage dividing effect on the circuit so as to reduce audio background noise; the high-frequency noise suppression module is connected with the audio processing module so as to suppress high-frequency signals in the audio signals; and the SPK loudspeaker is connected with the high-frequency noise suppression module and is used for playing sound. By adopting the technical scheme, the audio processing module has a voltage division effect on the ground noise, so that the ground noise at the two ends of the SPK loudspeaker is reduced by voltage division, and the high-frequency noise suppression module transmits the audio signal after the high-frequency noise is reduced to the SPK loudspeaker through an LC filtering principle, so that th