Virtual acoustic environments were implemented in a laboratory based on real-time convolution of multiple high-resolution impulse responses previously measured in real rooms. The quality of these environments has been tested during live music performance and recording in a highly demanding Virtual Haydn Project. The technological and conceptual novelty of this project is to allow one to separate the recording of the direct sound and of the ambient sound into two independent processes, each individually optimized and adjusted. The method offers recording and rehearsal rooms that are guaranteed to be quiet and free from traffic noise and other interference. At present, the technical complexity and system cost are still very high but we can expect that these will be reduced in time.
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