Measurement and processing of stringed acoustic instrument signals

A signal processing system comprising:

• a first stringed musical instrument;
• a plurality of sensors mounted on said first stringed musical instrument, each of said sensors responsive to at least one of force, displacement, velocity or acceleration and indicative of the vibrational response at a body point on said musical instrument;
• a set of body points forming a body point vector;
• a set of vibrational responses at said set of body points forming a body point response vector;
• a set of signals from said sensors forming a sensor signal vector, said sensor signal vector being equivalent to at least rank-2 transformation of said body point response vector;
• at least one signal processor having a plurality of re-creation filters for processing and transforming said sensor signal vector into a transformed signal vector, wherein said transformed signal vector is equivalent to at least rank-2 transformation of the body point response vector;
• a resynthesized output signal formed by said re-creation filters and corresponding to said transformed signal vector.

A signal processing method comprising the steps of:

• sensing and measuring through a plurality of sensors mounted on a first stringed musical instrument at least one vector measurement of force, displacement, velocity or acceleration, indicative of the vibrational response at a body point on said musical instrument;
• forming a body point vector based on a set of body points;
• forming a body point response vector based on a set of vibrational responses at said set of body points;
• forming a sensor signal vector from said set of signals the sensors, wherein said sensor signal vector is equivalent to a full rank transformation of said body point response vector;
• processing and transforming said sensor signal vector by a plurality of re-creation filters in at least one signal processor into a transformed signal vector, wherein said transformed signal vector is equivalent to a full rank transformation of the body point response vector;
• and
• producing a resynthesized output signal formed by said re-creation filters and corresponding to said transformed signal vector.