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Your voice changes when you're tired or exerting effort, and machines may soon use that signal
The "talk test" is often used as a low-tech way to measure exercise intensity: If you can easily talk or even sing, your ...
Vocal pitch, intensity, and pause structure are the vocal characteristics most sensitive to changes in breathing and effort.
Your voice is a reflection of your physical exertion. A new study identified that physical stress alters pitch, intensity, and pause structures long before a listener might notice.
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