3 ms·
They just explained what anyone who has played with 2 sine waves already knows, and drew no conclusions.
by mmaunder 9y ago
They just explained what anyone who has played with 2 sine waves already knows, and drew no conclusions.
- deleted 9y ago[deleted]
- superkuh 9y agoAnd even beyond that, ultrasound interference to produce restricted audio volumes has been commercialized and used in places like museums for decades.