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Prime audio output on speech synthesis #34

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compulim opened this issue Jul 30, 2019 · 0 comments · Fixed by #36
Closed

Prime audio output on speech synthesis #34

compulim opened this issue Jul 30, 2019 · 0 comments · Fixed by #36
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text-to-speech Related to speech synthesis

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@compulim
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compulim commented Jul 30, 2019 •
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Safari will block audio playback if the first audio clip in the AudioContext instance is not rooted from user gesture.

We need to allow the user to pass an AudioContext instance, which is primed with an empty audio clip.

ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t 0.01 -q:a 9 -acodec libmp3lame out.mp3
data:audio/mp3;base64,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
@compulim compulim added the text-to-speech Related to speech synthesis label Jul 30, 2019
@compulim compulim pinned this issue Jul 31, 2019
@compulim compulim mentioned this issue Jul 31, 2019
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@compulim compulim unpinned this issue Aug 3, 2019
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Persisted AudioContext for priming Web Audio engine compulim/web-speech-cognitive-services
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