語音(收音機/電視)音量的大小常因不同電台頻道、發射功率及距離而有所變化。因此，當使用者更換頻道時，語音大小音量亦隨之變化。此種現象常會造成使用者不便，需常常調整音量輸出的大小。本研究中，我們建立了一智慧語音自動調控程式系統，此技術可記憶使用者先前最適當的音量；當切換不同頻道時，此系統能自動將音量調回使用者之前所接受最適當音量。

Audio (radio/TV) channels vary in their range and output power. For this reason, when users switch channels, audio signals tend to fluctuate. This phenomenon annoys the users, requiring him to manually adjust the audio volume level. In this research, we have programmed a smart-active audio adjustment technique. This technique records the user’s preferred audio volume and establishes it as the default setting. When the user switches channels, this system automatically adjusts the audio output to the user’s preferred volume.