System and method for speech processing using independent component analysis under stability restraints

A speech device, comprising:

• at least two spaced-apart microphones constructed to receive acoustic sound signals, the microphones being an expected distance from a speech source, and;
• an ICA or BSS processor coupled to the microphones,
• the processor operating steps comprising:
• receiving sound signals from the two microphones,
• separating the sound signals under stability constraints into at least one desired speech signal line and at least one noise signal line.

A system for separating desired speech signals in an acoustic environment, comprising

• a plurality of input channels each receiving one or more acoustic signals;
• at least one ICA or BSS filter, wherein the filter separates the received signals under stability constraints into one or more desired audio signals and one or more noise signals;
• and
• a plurality of output channels transmitting the separated signals.

A system for isolating a speech signal, comprising:

• a set of signal generators, each signal generator arranged to generate a mixed signal indicative of a mixture of the speech signal and other acoustic signals;
• a processor configured to receive each of the mixed signals;
• the processor operating a method further comprising:
• processing the set of mixed signals using an independent component analysis (ICA) or blind source separation (BSS) under stability constraints;
• and
• separating the mixed signals into the speech signal and at least one noise signal;
• and
• a speech enabled unit receiving the speech signal.