25 lines
838 B
Lua
25 lines
838 B
Lua
 
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local objc = require("objc.objc")
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objc.load("AVFoundation")
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local backend = {}
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backend.synth = objc.AVSpeechSynthesizer:alloc():init()
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-- Because AVSpeechSynthesizer doesn't give us the proper default voice (it returned ALbert on my system for some reason), we have to do this bit of uglyness with NSSpeechSynthesizer.
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backend.voice = objc.NSSpeechSynthesizer:alloc():init():defaultVoice()
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function backend.output(text, interrupt)
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text = tostring(text)
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interrupt = interrupt or false
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if interrupt then
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backend.synth:stopSpeakingAtBoundary(0)
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end
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local utterance = objc.AVSpeechUtterance:alloc():initWithString(text)
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utterance.voice = objc.AVSpeechSynthesisVoice:voiceWithIdentifier(backend.voice)
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backend.synth:speakUtterance(utterance)
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end
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function backend.isSpeaking()
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return backend.synth:isSpeaking()
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end
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return backend
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