Patent ID: 8068644
Filing Date: 2011-11-29
Classification: G09B

Abstract:
1. A computer-implemented method for converting digital video information into an audio format comprehensible by blind people as video information, said method comprising: (i) a step for compressing the running video frame; (ii) a step for converting a compressed video image frame into a sonogram by reading the horizontal direction of the image as the time function and the vertical direction of the image as the frequency function; (iii) a step for converting the sonogram into an audio format by performing a frequency to amplitude conversion on each vertical line of the sonogram and writing the audio stream for the image frame; (iv) a step for separating the image audio file into two audio files modified to give lateral position feedback into the left and right ears, wherein the lateral position is provided by playing the audio image information with phase shift corresponding to sounds heard to the left and right of the listener.