Voice transformation with encoded information

A method for reconstructing a voice transformation, comprising:

• receiving an output speech of a voice transformation system wherein the output speech is transformed speech which has encoded information on the transformation parameters using steganography;
• extracting the information on the transformation parameters;
• and
• carrying out an inverse transformation of the output speech to obtain an approximation of an original source speech.

A system for voice transformation comprising:

• a processor;
• a voice transformation component for transforming a source speech using transformation parameters;
• and
• a steganography component for encoding information on the transformation parameters in an output speech using steganography;
• wherein the source speech can be reconstructed using the output speech and the information on the transformation parameters.

A system for reconstructing a voice transformation, comprising:

• a processor;
• a speech receiver for receiving an input speech, wherein the input speech is transformed speech which has encoded information on the transformation parameters using steganography;
• a steganography decoder component for decoding the information on the transformation parameters from the input speech;
• and
• a voice reconstruction component for carrying out an inverse transformation of the input speech to obtain an approximation of an original source speech.

A computer program product for voice transformation, the computer program product comprising:

• a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising:
• computer readable program code configured to:
• transform a source speech using transformation parameters;
• and
• encode information on the transformation parameters in an output speech using steganography;
• wherein the source speech can be reconstructed using the information on the output speech and the transformation parameters.