56. The method as recited in claim 55 wherein the first voice signals comprise the voice of a virtual assistant and the second voice signals comprise the voice of a helper to the virtual assistant.
56. The method as recited in claim 55 wherein the first voice signals comprise the voice of a virtual assistant and the second voice signals comprise the voice of a helper to the virtual assistant. 58. The method as recited in claim 56 wherein the second voice signals comprise synthesized voice signals.