Auditory sense training method and sound processing method for auditory sense training

Abstract

An auditory sense training device 1 to be used in an auditory sense training method for training auditory sense by listening to a sound formed by processing an original sound comprises a band attenuation processing method 20 for attenuating a predetermined frequency band of an original sound 10, a switching means 30 for selectively outputting either the original sound or the output from said band attenuation processing means, a panpot processing means 40 for performing a panpot process wherein a voice signal formed by attenuating an original sound of one channel is superposed to the original sound of another channel, and a phase reverse processing means 50 for performing a phase reverse process of reversing the phase of the original sound, wherein a trainee listens to the original sound and a band attenuation processed sound formed by attenuating a predetermined frequency band of the original sound alternately.

1 . A sound processing method for auditory sense training by hearing a processed sound of an original sound, comprising:
 alternately outputting a region attenuation processed sound and either a combination of the original sound and a silent part or one of the original sound and the silent part, wherein the region attenuation processed sound is obtained by attenuating the original sound in either a first region at or under a predetermined frequency in a range between 1800 Hz and 7000 Hz, a second region at or over a predetermined frequency in a range between 2000 Hz and 7000 Hz, or a third region which is a combination of the first region and the second region.   
   
   
       2 . The sound processing method for auditory sense training according to  claim 1 , wherein one of the regions of the predetermined frequency changes randomly among a plurality of different frequencies. 
   
   
       3 . The sound processing method for auditory sense training according to  claim 1 , wherein a time of alternately outputting the region attenuation processed sound changes randomly. 
   
   
       4 . The sound processing method for auditory sense training according to  claim 1 , wherein the region attenuation processed sound has a duration between 0.1 seconds and 7 seconds.