iOS voice does not work intermittently in Sample bot

[collegewap]

Was facing voice issue in iPhone in one of the custom bots, so after trying to figure out what is the issue, found that issue happens in Sample bot also.

Bot Link: https://microsoft.github.io/BotFramework-WebChat/03.speech/b.cognitive-speech-services-js/

Version

4.9.2

Describe the bug

In the iPhone, the bot will listen, but will not speak. The issue happens intermittently across the devices irrespective of the iOS version. Works fine in Android, Mac, Windows.

Steps to reproduce

A video can be found here. The bot does not speak here:

https://drive.google.com/file/d/1Svs6ICcYbgcCW8rlYeySe1bx7MrCLlxc/view?usp=drivesdk

iPhone used in the video:

iOS 12.4.6, iPhone 6

Expected behavior

The bot should speak in iPhone all the time

[Bug]

[daveta]

Hi @collegewap : Are you using the Directline Speech channel? Or a separate speech recognition approach?

[collegewap]

@daveta Using the same code as given here: https://github.com/microsoft/BotFramework-WebChat/tree/master/samples/03.speech/b.cognitive-speech-services-js

I have made changes only to the look and feel. No customizations related to speech. Also, I am using LUIS.

[compulim]

@daveta he is using Speech Services, not Direct Line Speech.

It is very interesting. When we do 4.9.2 release (and any production releases), we are 100% sure that speech synthesis is working. This is the page we test against on every release, https://corinagum.github.io/WebChat-release-testing/.

And when I am testing the page on my iPhone right now, it stopped working, just like how @collegewap recorded.

I need to hook a Mac to debug. But I am sure this will be addressed when we do the release next Monday. This is shipblocker.

Thanks for reporting.

[compulim]

In the meanwhile, @collegewap could you quickly check if it works on older version of Web Chat, e.g. 4.9.1, 4.8.1 and 4.7.1?

[compulim]

My bad, I flipped the "do not disturb" switch on iPhone (on it side), thus the audio was not coming through.

After I flipped the switch off, audio is going through. I tested 4.9.2 through this page https://microsoft.github.io/BotFramework-WebChat/03.speech/b.cognitive-speech-services-js/. And also through few of my testing pages and everything looks good.

@collegewap can you check on your side?

[compulim]

Attached is a video showing Safari on iPhone, on https://microsoft.github.io/BotFramework-WebChat/03.speech/b.cognitive-speech-services-js/. And is able to do both speech recognition and synthesis.

RPReplay_Final1596845716.zip

[compulim]

Closing due to inactivity.