Method and apparatus for processing audio and speech signals

A machine-readable storage media having stored thereon instructions adapted to be executed by a processor to perform a method for processing signals representing a speech via a plurality of filters that approximate behaviors of human cochlea, comprising:

• providing a first signal representing speech to the plurality of filters;
• and
• filtering the first signal with the plurality of filters, each of the plurality of filters producing one of a plurality of filtered signals;
• wherein
• each of the plurality of filters is formed from a mother filter via a dilation and a shift in time;
• and
• an impulse response of the mother filter is substantially similar to an impulse response of a basilar membrane in the human cochlea to a sound.

A system for processing signals representing a speech via a plurality of filters that approximate behaviors of human cochlea, comprising:

• a plurality of filters;
• and
• a processor configured to:
• providing a first signal representing speech to the plurality of filters;
• and
• filtering the first signal with the plurality of filters, each of the plurality of filters producing one of a plurality of filtered signals;
• wherein
• each of the plurality of filters is formed from a mother filter via a dilation and a shift in time;
• and
• an impulse response of the mother filter is substantially similar to an impulse response of a basilar membrane in the human cochlea to a pure tone sound.