A STUDY OF THE BLENDING OF VOCAL MUSIC WITH THE SOUND FIELD BY DIFFERENT SINGING STYLES

The initial time delay Δt₁ between the direct sound and the first reflection and the subsequent reverberation time T_sub are usually fixed within a given space. Thus, concert halls do not have ideal conditions for all forms of music. It has been shown that the most preferred conditions for both listeners and performers are determined by the minimum value of the effective duration of the running autocorrelation function (ACF) of sound signals, (τ_e)_min. To determine the suitability of vocal music for a given sound field, (τ_e)_min of vocal music was analyzed, after recording five solo singers (tenor) in an anechoic room. The results showed that (τ_e)_min of the ACF of a voice source, which is closely related to the two temporal factors of the sound field, varies with singing style. A significant finding is that the values of (τ_e)_min of sound signals forfalsetto and medium falsetto are significantly longer than that for operatic singing.