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Text to Speech integrated with LUIS BOT does not voice out/playback in Safari browser on iOS/iPhone devices #1829

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corinagum opened this issue Mar 20, 2019 · 3 comments · Fixed by #2035
Closed

Text to Speech integrated with LUIS BOT does not voice out/playback in Safari browser on iOS/iPhone devices #1829

corinagum opened this issue Mar 20, 2019 · 3 comments · Fixed by #2035
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@compulim
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area-speech front-burner p1 Painful if we don't fix, won't block releasing
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R8 Prioritization

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@corinagum
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Customer is facing problems using Speech API on a LUIS BOT where, Text to Speech/voice out/playback is not working in Safari browser on iOS devices, though it works on both Android and Windows clients.
Here is a sample URL for testing which I have hosted.

Related to #995
@corinagum corinagum added needs-repro Waiting for repro or investigation and removed Triage-E labels Mar 28, 2019
@compulim
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compulim commented Apr 1, 2019

Need more investigations.

  • Go to https://compulim.github.io/web-speech-cognitive-services/ and try if text-to-speech is working on iOS or not.
    • If it is not, find out the issue in that repository
    • If yes, it could be related to "playing audio without an user interaction"
      • Prime the audio playback engine when the user click microphone button on Web Chat

@compulim compulim added the 4.5 label Apr 1, 2019
@compulim compulim removed their assignment Apr 1, 2019
@corinagum corinagum added backlog Out of scope for the current iteration but it will be evaluated in a future release. and removed 4.5 labels Apr 2, 2019
@corinagum corinagum added the bug Indicates an unexpected problem or an unintended behavior. label May 3, 2019
@cwhitten cwhitten added the 4.5 label May 13, 2019
@corinagum corinagum removed the backlog Out of scope for the current iteration but it will be evaluated in a future release. label May 13, 2019
@cwhitten cwhitten added p1 Painful if we don't fix, won't block releasing and removed needs-repro Waiting for repro or investigation labels May 13, 2019
@compulim compulim moved this from P1 to In-Flight in R8 Prioritization May 21, 2019
@compulim
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The exception thrown at this line.

image

image

@compulim compulim removed bug Indicates an unexpected problem or an unintended behavior. labels May 22, 2019
@compulim compulim mentioned this issue May 22, 2019
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@compulim
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The core bug of this issue is because we asked the speech synthesizer to cancel if it cannot start within a second. The kill-and-retry logic was used to workaround a Chrome bug and it no longer repro today.

Since we are using Cognitive Services, it could take more than a second to download and start playing the MP3. Thus, it is not very reliable today.

@compulim compulim mentioned this issue May 29, 2019
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@corinagum corinagum moved this from In-Flight to Done in R8 Prioritization May 31, 2019
@compulim compulim mentioned this issue Jul 11, 2019
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@compulim compulim

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area-speech front-burner p1 Painful if we don't fix, won't block releasing
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Fix long text is not synthesized when using Cognitive Services compulim/BotFramework-WebChat
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@cwhitten @compulim @corinagum