A multi-channel digital hearing instrument is provided that includes a microphone, an analog-to-digital (A/D) converter, a sound processor, a digital-to-analog (D/A) converter and a speaker. The microphone receives an acoustical signal and generates an analog audio signal. The A/D converter converts...http://www.google.com/patents/US8121323?utm_source=gb-gplus-sharePatent US8121323 - Inter-channel communication in a multi-channel digital hearing instrument
