海外直订3-note exercise book: baritone & euphonium t.c. (compens
专利ep1819040a1 - distortion compensating apparatus and method -
专利us20100223786 - method of compensating for crosstalk - googl
海外直订3-note exercise book: baritone & euphonium t.c. (compens
专利ep1819040a1 - distortion compensating apparatus and method -
专利us20100223786 - method of compensating for crosstalk - googl