Musical instrument sustainers and transducers.

摘要: A sustainer for providing sustained sounds from a musical instrument has feedback circuit converting pickup signal representing vibration of string or other vibratory element to drive and applying forces the responsive signal. The is arranged compensate phase lag relative motion provided by driver may be provide difference between such that varies with frequency towards leading increasing frequency. This compensation provides enhanced response strings in fundamental mode vibration. preferably so applied do not vary lateral movement strings.