How can this produce directional sound beams if there is a glass plate covering ... | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

		amelius 2 days ago \| parent \| context \| favorite \| on: High-quality OLED displays now enabling integrated... How can this produce directional sound beams if there is a glass plate covering the display?

pornel 2 days ago [–]

Probably similar to antennas — using phase shifting and interference.

amelius 2 days ago | [–]

Yes, probably, but my question was more about the glass cover and if it wouldn't basically destroy the effect?

spookie 2 days ago | | [–]

If it is touching the glass it amplifies it, if anything. (Edit: I should say it amplifies some frequencies while attenuating others)

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact