HEARING AID FOR MODERATELY HARD OF HEARING, TRANSMISSION SYSTEM HAVING PROVISION FOR THE MODERATELY HARD OF HEARING, RECORDING AND REPRODUCING DEVICE FOR THE MODERATELY HARD OF HEARING AND REPRODUCING DEVICE HAVING PROVISION FOR THE MODERATELY HARD OF HEARING

摘要

PROBLEM TO BE SOLVED: To provide a hearing aid for a moderately hard of hearing with high articulation and with superior naturalness for the moderately hard of hearing who normally does not use hearing aid. SOLUTION: An audio signal, including a voice signal and a non-voice signal, is given to a voice non-voice discriminating means 12 and a hearing aid processing means 13 via an input terminal 11. The voice non-voice discriminating means 12 performs voice analysis by an LPC, refers a representative phoneme stored in a memory to classify the received audio signal into consonants, vowels and non-voice to generate a discrimination signal with respect to the likelihood of voice. The hearing aid processing means 13 performs hearing aid processing, such as high frequency emphasis when the input signal is discriminated to be a voice and passes it without processing, when the input signal is a non-voice. An amplifier 14 amplifiers the output signal of the hearing aid processing means 13, and a speaker 16 sounds a sound for a person with moderate hearing disability.