Can colors influence loudness?
Daniel Menzel -
menzel@tum.de
Elias Faccinelli
Hugo Fastl
AG Technische Akustik
Lehrstuhl für Mensch Maschine Kommunikation
Technische Universität München
Arcisstraße 21, 80333 München
Popular version of paper 2aPPa15
Presented Tuesday afternoon, July 1, 2008
Acoustics’08, Paris, France
Effect of vehicle color
To investigate if different images can influence how loud a sound is perceived, an experiment was performed using pictures of sports cars in various colors. The task of the subjects was to listen to sounds of an accelerating sports car while looking at the picture of a red (R), light-green (G), blue (B), or dark-green (DG) sports car (see Fig. 1). After each sound, they had to rate how loud they thought the car was by giving a corresponding number.
The sounds were presented with four different levels (90, 86, 82, and 78dB(A)) to make it harder for the subjects to remember which sounds they already heard. Sixteen subjects participated in this experiment, which was split in two sessions.
Fig. 2 shows the results of this experiment. The numbers which were given by the subjects were first normalized so that the perceived loudness of the dark-green car combined with the loudest sound (90dB(A)) corresponds to 1 (100%). In most cases, red cars seemed louder than blue or light-green cars for the same sound. For the loudest sound in session 1 for example, the sound associated with the red car was perceived as being approximately 5% louder than the same sound combined with a light-green car. Dark green also seems to elicit somewhat higher loudness ratings than light green or blue.
*** Conclusion
In this study, different colors showed the ability to influence how subjects rated the loudness of sports cars. Red cars were perceived as being louder than light-green or blue cars. This confirms the results of previous experiments, in which red passenger trains also seemed louder than green passenger trains