3 ms·
i'm just referring to the acoustic isolation from the mechanical coupler. obviously (?) the passband for telephone comms is far short of ultrasonic
by jiveturkey 4y ago
i'm just referring to the acoustic isolation from the mechanical coupler. obviously (?) the passband for telephone comms is far short of ultrasonic
- andi999 4y agoWhat do you mean by acoustic isolation?
- jiveturkey 4y agohttps://en.wikipedia.org/wiki/Acoustic_coupler https://en.wikipedia.org/wiki/Acoustic_coupler
- andi999 4y agoYes, but what can ultrasonic do here?
- jiveturkey 4y agoThe complaint was that the wrong payment can be made, because audio leaks.
- andi999 4y agoyes. Now I understand, but then the stated advantage of longer distance is also gone...