| 摘要 |
An assistive-listening system is used with sound-producing equipment that includes a signal source, and first and second sound sources operatively associated with the signal source and configured to produce sound corresponding to signals received from the signal source. The assistive-listening system includes a volume control operatively associated with the signal source and configured proportionally to change the volume of both the first and second sound sources. Also included is a support structure configured to support and position the second sound source so that a hearing-impaired listener may listen effectively to sound controlled by the volume control without disturbing normal-hearing listeners.
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