| 摘要 |
PURPOSE:To realize a proper hearing aid to the symptom of a person suffering from brady-acuity of hearing by using an output voice signal subject to desired conversion processing concerning to a speech speed and a frequency component synthesis for an input voice signal. CONSTITUTION:The hearing aid is provided with processing signal input sections (1-5) to extract input voice signal at a 1st sampling frequency, signal processing sections (10a-10e) and processing signal output sections (20-25) outputting a voice signal from the processed signal at a 1st or 2nd sampling frequency and as the signal processing sections (10a-10e) are made up of an input signal envelope component calculation means 11, an input signal instantaneous frequency calculation means 13, a means 14 implementing frequency conversion processing such as frequency shift and band compression/expansion or the like for the instantaneous frequency component, a means 15 calculating an FM component from the instantaneous frequency component subject to conversion processing, and a multiplier means 16 between the envelope component and the FM component. |
