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Won't Fix

Votes

0

Found in

2020.3.42f1

2021.3.18f1

2022.2.5f1

2023.1.0b2

2023.2.0a14

Issue ID

UUM-25512

Regression

No

Performance issues when instantiating a recognizer under UnityEngine.Windows.Speech

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Reproduction steps:

# Open the attached project “RecognizerIssue”
# In the project, navigate to "Assets/Scenes" and open "Sample Scene"
# Open the profiler (Window → Analysis → Profiler)
# In the CPU Usage module disable everything except Scripts
# Enter Play Mode

Expected result: Performance stays consistent
Actual result: Around frame 100 there is a large spike in the CPU usage section of the profiler

Reproducible with: 2020.3.42f1, 2021.3.18f1, 2022.2.5f1, 2023.1.0b2

Reproducible on: Windows 10

  1. Resolution Note:

    Thank you for your bug report.

    We are not able to improve the performance of the API provided by Unity without a major internal rewrite. After reviewing the issue and the impact it has on our users our team has decided that this case will be resolved as "Won't Fix". This does not mean that the issue isn’t a legitimate bug, but instead that we are not able to prioritize the fix, at this time.

    A workaround is available on the UWP platform. You can use, from a background thread, the Windows.Media.SpeechRecognition.SpeechRecognizer class from the Windows Runtime APIs.

    For more information on using Windows Runtime APIs in Unity, see https://docs.unity3d.com/Manual/IL2CPP-WindowsRuntimeSupport.html. For more information on using the SpeechRecognizer API in C#, see https://learn.microsoft.com/en-us/windows/apps/design/input/speech-recognition.

    The case will now be closed, and will not be reopened unless new information arises that would change the issue’s impact. Please let us know if you have additional information relating to the severity of this bug.

Comments (1)

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