onkyōsokushin
1. echo sounding
Noun
1. echo sounding
1. sound; noise
1. sales promotion
1. promotion; acceleration
1. If it were sound-related; If it were audio
1. Audio; Sound
1. Was not sound equipment.; Was not an audio system.
1. Probably sound.; Likely audio.
1. Was not sound equipment.; Was not an audio system.
1. If sound systems; If acoustics