In an acoustic manner, or using an acoustic musical instrument.(adverb)
From the perspective of acoustics.(adverb)
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Use "acoustically" in a sentence
"So-called acoustically transparent perforated vinyl screens tend to cause audio and video problems such as video resolution loss, moiré interaction between the grid of digital pixels and the fixed grid of holes in the screen, as well as pronounced audio high frequency loss and comb filtering."
"The advantage of the Shuttle PCs is that they are dead quiet acoustically, meaning that I could place the PC in my equipment rack and use short interconnects to the preamp."
"Worse, consider if they had declared that song was dangerous, an unharnessed form of speech that acoustically shifted too much and led to the production of sound being too out of control, and possibly causing loss of speech and mind."