Singing adaptation in real and virtual acoustics
* Presenting author
This research project currently running at the TU-Berlin aims to investigate the capacity of adaptation of trained singers to the acoustics of various venues. A given short musical program is recorded in each room by means of a near-field microphone. In addition, room acoustical measurements are performed using a dodecahedral sound source, omnidirectional microphones and a dummy head. Another set of measurements consists in placing the dummy head together with a directional loudspeaker on a rotative plate in order to measure impulse responses from different orientations, at the position of the singer on stage. The second phase of recordings takes place in an anechoic chamber. It is the replication of the first experiment in virtual conditions. Interactive auralization is perform, i.e. the singers could hear their own voice in the virtual room while singing using real-time convolution and head tracking. Each note from the singing recordings in both real and virtual rooms is analyzed in terms of tempo, loudness, and timbre features. This data is further compared to the room acoustical parameters and correlations are estimated. It appears that the sound color of the room response plays an important role, along with the early reverberation time and the room gain.