Re: "Bluetooth Hearing aides do not play audio for anything except phone calls."
✽ It may help to: Restart your iPhone - Apple Support (Deletes temporary files, re-establishes connections, may
update recent setting changes, and often restores order if something is not working as expected.
✽ For iOS18: Apple support's tips for how to: Use hearing devices with iPhone - Apple Support
include (amongst others):
"Stream audio to your hearing devices
You can stream audio from phone calls, music, movies, podcasts, Siri, and more.
- Tap
in Control Center, on the Lock Screen, or in the Now Playing controls for the app you’re listening to. - Choose your hearing device."
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Re: Hearing aid control app does not work any more (Signia)Podcast audio stops when I turn my hearing aides on.
Possibly related:
"Microphone delays and may not pick up first 2 to 10 seconds of speech for messaging and voice to text apps".
:
✽ Check with your hearing-specialist or the hearing-aid manufacturer (Eg: contact "support" on their website)
for a possible hearing-aid firmware update, or, as you use an app, an app (and / or firmware) update in the app.
The hearing-aid manual may have tips for firmware / updates / compatiility with iPhone etc.