iOS 13.2 SFSpeechRecognizer recognitionTask resultsHandler final result with 2 or more seconds delay

Question

Created Nov ’19

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When using recognitionTask of SFSpeechRecognizer on iOS 13.2, the resultsHandler gives partial results normally but the final one comes with around 2 seconds delay. 2 seconds was with english and around 30 seconds for other languages.

I was profiling it, trying to see if there is something keeping the final result to come, but I did not find anything.

recognitionTask function:

open func recognitionTask(with request: SFSpeechRecognitionRequest, resultHandler: @escaping (SFSpeechRecognitionResult?, Error?) -> Void) -> SFSpeechRecognitionTask

Did anybody had the same issue and maybe found out why is it happening?

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Answer 1

stipus OP

Nov ’19

I have a similar problem with iOS 13.2 and macOS 10.15.1

I get the final result only once, then I only get partial results until the Mac or iOS device is rebooted.

I just checked and it still works fine with iOS 12.4.1 and iOS 13.1.3

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Answer 2

stipus OP

Nov ’19

The problem seems to be solved in iOS 13.3 beta 1.

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Answer 3

stipus OP

Nov ’19

But the API issue is still not solved with iOS 13.2.2 on a real device !

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Answer 4

mploigt OP

Dec ’19

The 30 second delay (for German) is still there with iOS 13.3

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Answer 5

synatize OP

Jan ’21

I have quite a similar problem. I receive partial and final results with a huge delay. Sometimes it recognizes phrases spoken a long time ago (e.g. over 20-30 seconds). Was only able to reproduce this problem on very few devices (on an iPad Pro 3. gen for example). Also answers from Siri have a huge delay on that device sometimes. Has anyone yet found a solution for this?

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