Older Safari: Handle speech sample rate errors, reuse audio context #111
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microbit-matt-hillsdon
commented
Feb 22, 2024
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- Workaround for modspeech doesn't work on iPad Safari 13.x and 14.1 (works on 14.5) #110 where we've observed that the sample rate of 19000 isn't supported. We'll aim to increase the sample rate in a separate PR but this will at least mean the simulator isn't put in a bad state.
- Reuse the audio context created after the user interaction, as there are limits to how many you can create on Safari 13 (4 in my BrowserStack testing). I think we always intended to do this, but careful review needed as this is a more significant change than I was anticipating. We already had clean up code for the nodes when the board stops. We never cleaned up the context. So I think we were assuming it lived forever. If this doesn't work out then an alternative is to try closing the old one before creating the new one.
We'll aim to increase the sample rate but this will at least mean the simulator isn't put in a bad state.
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