副ふく音おん声せい

noun

second audio channel; supplementary sound channel

Refers to an additional audio track, often used in broadcasting for commentary, alternative language, or descriptive audio.

• この番ばん組ぐみは副ふく音おん声せいで英えい語ごの解かい説せつを聞きくことができる。

  You can listen to English commentary on the second audio channel for this program.