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Abstract:
Every day, you hear many sounds in your environment, like speech, music, animal calls, or passing cars. How do you tease apart these unique categories of sounds? We aimed to understand more about how people distinguish speech and music by using an instrument that can both “speak” and play music: the dùndún talking drum. We were interested in whether people could tell if the sound produced by the drum was speech or music. People who were familiar with the dùndún were good at the task, but so were those who had never heard the dùndún, suggesting that there are general characteristics of sound that define speech and music categories. We observed that music is faster, more regular, and more variable in volume than “speech.” This research helps us understand the interesting instrument that is dùndún and provides insights about how humans distinguish two important types of sound: speech and music.
