Wrong Speaker on iOS

Is it an issue related to Adaptive Cards?

No

Is this an accessibility issue?

No

What version of Web Chat are you using?

Latest production

Which distribution are you using Web Chat from?

NPM

Which hosting environment does this issue primarily affect?

Web apps

Which browsers and platforms do the issue happened?

Platform: iOS/iPadOS

Which area does this issue affect?

Speech

What is the public URL for the website?

No response

Please describe the bug

The webchat packaged is being used to facilitate a voice-only journey.

The iPhone OS assigns the “earpiece speaker” instead of the “loudspeaker” resulting in the bot’s voice being low in volume.

This issue happens on few iOS devices like iPhone 11 (iOS v16.3), iPhone 12 (iOS v16.4.1), while it is working fine on iPhone 14 Pro (iOS v16.4), iPhone 14 Pro Max (iOS v16.4).

Do you see any errors in console log?

No

How to reproduce the issue?

Using an affected device (listed above)

1. Start a conversation with a speech-enabled bot.
2. The activity from the bot is spoken using the earpiece speaker instead of the loudspeaker.

What do you expect?

The application should use the loudspeaker to play the bot's voice.

What actually happened?

The application uses the earpiece speaker to play the bot's voice.

Do you have any screenshots or recordings to repro the issue?

No response

Adaptive Card JSON

No response

Additional context

No response