acoustically
adverb uk/əˈkuː.stɪ.kəl.i/ us/əˈkuː.stɪ.kəl.i/
(SOUND / HEARING)
音响的，听觉的
in a way that relates to sound or hearing
The new building was acoustically designed for album recordings. 从音响效果上看，新建筑是专为灌录唱片而设计的。
Words heard in isolation are acoustically different from the same words in running speech. 同样的词，孤立地听与在连续语流中听，得到的声响效果是不同的。
- More examples
- The modem would send and receive tones acoustically.
- Each of the alcoves in the recording studio are acoustically separate.
- Acoustically speaking, the most striking sound coming from the Hall these days is silence.
(NOT ELECTRIC)
以原声（自然声）的形式
on a musical instrument that is not made louder by electrical equipment
He plays with passion, whether on electric guitar or acoustically. 无论是用电吉他还是用木吉他，他的演奏都充满激情。
Tonight he will take the stage alone, performing acoustically. 今晚他将独自上台，进行原声表演。
- More examples
- I like doing songs acoustically.
- His band was formed years before the electronic era, and his greatest hits were acoustically recorded.
- The silence of a church may suit musicians playing acoustically.
See: acoustic