| These are unrelated functions | |
| Posted by: NeoAdamite 01:49 pm EDT 10/14/24 | |
| In reply to: New Listening Device for Theaters -- from Apple? - stan 08:49 am EDT 10/14/24 | |
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| I assume that Apple's app uses the mic in the phone and the mic in the earbuds at the same time. It has to prevent sound picked up by the earbuds from feeding back into the mic in the phone. (That's the tricky part - it's why people using hearing aids are sometimes told to turn them off when using assisted listening devices.) Your idea is interesting but unrelated: that the theater's audio feed be broadcast via WiFi to an app running on the patrons' phones. There is no overlap between these two ideas. Also, neither can work in airplane mode. The "hearing aid" function could work if you turned off WiFi and cell connections but left Bluetooth on. The "theater" function would need to keep WiFi on but somehow block all WiFi connections except the one needed by the app. I suspect that would require Apple to modify iOS, and nobody wants to pay for that. Currently, most theaters use infrared to broadcast their audio feed to the ALD. A few use radio, which is good because it doesn't require line-of-sight, but bad because it's heavier - it becomes a receiver plus a separate headphone. |
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