| 摘要 |
A small, compact voice volume monitor has been developed that provides feedback to the speaker/user regarding the volume of the user's speech. The monitor is based on a sensing sound vibrations in the ear bone during speech and converting these vibrations into an electrical signal reflecting the speech volume. Electronic circuitry is then used to compare the intensity of this signal with pre-set reference levels. When the intensity of the signal is outside the reference levels for a set amount of time, feedback is provided to the user, for example, from a small vibratory motor.
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