nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqtmm95lu8a64aqyrcx8ka4wefzaj3hv7kr38hc4p7a7a5xdftak4sq4lqye nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpquqgvgepxg78kye8u74k30j69wwdptwn4pnalv6rwuxdtgtw602ss8w3tdq I wonder if you can make acoustic directional couplers