Intelligent terminal-based high-intelligibility voice noise reduction algorithm

• Main Authors: CHEN FEI, FAN MINGFU
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2018
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The invention discloses an intelligent terminal-based high-intelligibility voice noise reduction algorithm. The intelligent terminal-based high-intelligibility voice noise reduction algorithm is usedfor realizing the communication between a hearing aid and an intelligent terminal. The hearing aid receives a noisy voice signal from the outside and transmits the voice signal to the intelligent terminal. The voice signal is processed by the intelligent terminal and then the noise estimation is obtained. In this way, the high intelligibility of output voice is realized. The algorithm specificallycomprises the following steps: (1) after the hearing aid receives the voice signal from the outside and transmits the voice signal to the intelligent terminal, two paths are formed after the digital-to-analog conversion and the analysis of a WOLA analysis filter, and a phase is stored; (2) the first path is used for extracting the stored phase, a digitalized voice signal is transmitted to the intelligent terminal to be su