PsychoPy, MATLAB, Audacity
- To investigate the effect of source timbre, namely sine (pure) tone and vocal, on the accuracy of pitch reproduction.
- Furthermore, to question whether musical experience bears influence on this ability.
- Pitch reproduction is to match the fundamental frequency of a sound. Pitch and timbre are building blocks of music, both are perceived differently, but are tightly interlinked.
- 24 Stanford University students participated in this study, and were categorized into non-musicians, musicians (but non-singers), and singers.
- 20 stimuli were presented as 1-second long sine and vocal tones in matched pitch pairs (identical fundamental frequency), see samples below.
- Responses were processed using pitch extraction algorithms in MATLAB and Audacity, to measure mean pitch inaccuracy (or deviation from stimulus pitch).
- Results strongly conveyed that vocal tones better facilitate accurate pitch reproduction as compared to sine tones.
- Results showed some indication that a higher level of musical experience led to less dependence on timbre for accurate reproduction. However, more samples are required across these categories to confidently test this.