Vocal range and intensity in actors: a studio versus stage comparison

Area of Science:

• Vocal acoustics
• Speech science
• Performing arts medicine

Background:

• Voice range profiles (VRPs) define an individual's vocal capabilities.
• Understanding speech range profiles (SRPs) in relation to VRPs is crucial for actors.
• Previous research has not fully explored how actors utilize their vocal range during performances.

Purpose of the Study:

• To compare actors' speech pitch and loudness ranges with their established voice range profiles.
• To investigate whether actors operate within the central or boundary regions of their VRP during speech.
• To assess the ecological validity of laboratory-based speech recordings versus live theatrical performances.

Main Methods:

• Eight professional actors had their voice range profiles (VRPs) measured.
• Speech range profiles (SRPs) were recorded during laboratory readings and live stage performances.
• Vocal pitch and loudness data from SRPs were analyzed relative to the VRPs.

Main Results:

• Actors' speech ranges, particularly during stage performances, sometimes extended beyond the central VRP.
• Variability was observed in how closely actors adhered to their VRP during speech.
• Stage performances showed a tendency for some actors to push vocal limits more than laboratory settings.

Conclusions:

• Some actors may stress their vocal mechanisms during live performances, potentially exceeding their typical voice range.
• Exceeding VRP boundaries during performance could indicate a higher risk for vocal strain or injury.
• Further research is needed to understand the long-term implications of vocal boundary pushing in actors.