Patent ID: 7978853

Claim:
A computer program product comprising a tangible computer useable recordable storage medium having computer useable program code for protecting information in an audio file, said computer program product including: computer useable program code for obtaining an audio file; computer useable program code for detecting semantic information in the audio file bearing one or more semantic segments in a speech signal, wherein the semantic information identifies each of the one or more segments containing information sought for protection and comprises a segment tag denoting nature of information in each segment containing information sought for protection; computer useable program code for encrypting the one or more segments containing information sought for protection by scrambling the one or more segments using a scrambling filter, wherein encrypting the one or more segments containing information sought for protection is based on the segment tag for each segment containing information sought for protection, wherein each segment tag corresponds to an encryption strength level; and computer useable program code for selectively decrypting zero or more of the encrypted segments based on user access privilege, wherein user access privilege denotes the encryption strength level at and under which the user is permitted to decrypt, and.