自動音量控制工具程式，可排程全自動調整音量 免費麥金塔電腦應用程式 推廌app
Utilities

Gag
Mac OS X 系統版本

原App Store內容轉載:
 

Free for ten days in December.

Automatic sound volume control for your Mac.

• Quiet at night. Never again will a sudden loud sound of incoming IM message wake you up in the middle of the night.
• Fully automatic. No need for daily maintenance. Set it once and forget it – Gag will do its job in background. Quietly.
• Menu Bar App. For all Menu Bar application fans – a marvellous trumpet icon.
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