Forum Discussion

KappaFlow's avatar
KappaFlow
Copper Contributor
Mar 09, 2025
Solved

Web Speech API stopped working on Edge starting with v.134

Starting with version 134 of the Edge Browser (Windows 10, Edge Stable Version 134.0.3124.51, released March 6, 2025), the functionality of speech recognition (WebSpeechAPI) has been broken. This iss...
edge
Speech Recognition
Kelly_Y's avatar
Kelly_Y
Icon for Microsoft rankMicrosoft
May 19, 2026

Hi Everyone!  I just left a similar reply in the other thread but just to make sure I reach everyone, replying here as well.  Our developers are investigating and need some additional information.  If you are able, can you provide the following? 

 

  1. Navigate to edge://metrics-internals/#variations and provide the values for SpeechNetworkStack and CFRSpeechServiceProtectECS experiments.  It is possible you will not have these but if you do, it will look something like this:
    "SpeechNetworkStack": {
            "enableFeatures": [
                "msSpeechRecognitionChromiumNetworkStack"
            ]
        },
        "CFRSpeechServiceProtectECS": {
            "enableFeatures": [
                "msSpeechSynthesisServiceUseCetoService",
                "msSpeechRecognitionServiceUseCetoService"
            ]
        },
  2. After you see the failure, navigate toedge://histograms and provide the information under the following sections (they will all be right next to each other)


"Microsoft.SpeechRecognition.CancellationReason"
"Microsoft.SpeechRecognition.Error"
"Microsoft.SpeechRecognition.ErrorRate"
"Microsoft.SpeechRecognition.Event"
"Microsoft.SpeechRecognition.Method2"
"Microsoft.SpeechRecognition.SdkInstall"
"Microsoft.SpeechRecognition.WasRateLimited"

 

If you prefer, please feel free to send me a message with this information.  Thanks! 

-Kelly

mlmason75's avatar
mlmason75
Brass Contributor
May 20, 2026

Here is mine but it was in the Edge Canary latest release.

]
},
"SpeechNetworkStack": {
"enableFeatures": [
"msSpeechRecognitionChromiumNetworkStack"
]
},
"CFRSpeechServiceProtectECS": {
"enableFeatures": [
"msSpeechSynthesisServiceUseCetoService",
"msSpeechRecognitionServiceUseCetoService"

 

Histogram: Microsoft.SpeechRecognition.Event recorded 11 samples, mean = 0.8 (flags = 0x41) [edge://histograms/#Microsoft.SpeechRecognition.Event]

0 -----O (5 = 45.5%) 1 -----O (5 = 45.5%) {45.5%} 2 ... 4 -O (1 = 9.1%) {90.9%} 5 ...

 

Histogram: Microsoft.SpeechRecognition.Method2 recorded 11 samples, mean = 1.5 (flags = 0x41) [edge://histograms/#Microsoft.SpeechRecognition.Method2]

0 -----O (5 = 45.5%) 1 -O (1 = 9.1%) {45.5%} 2 O (0 = 0.0%) {54.5%} 3 -----O (5 = 45.5%) {54.5%} 4 O (0 = 0.0%) {100.0%}

Histogram: Microsoft.SpeechRecognition.SavedAudioLength recorded 5 samples, mean = 0.0 (flags = 0x41) [edge://histograms/#Microsoft.SpeechRecognition.SavedAudioLength]

0 -----O (5 = 100.0%) 1 ...

 

Histogram: Microsoft.SpeechRecognition.WasRateLimited recorded 5 samples, mean = 0.0 (flags = 0x41) [edge://histograms/#Microsoft.SpeechRecognition.WasRateLimited]

0 -----O (5 = 100.0%) 1 ...

 

Not sure if this helps at all but this is all I could find.

 

 

 

 

 

  • Kelly_Y's avatar
    Kelly_Y
    Icon for Microsoft rankMicrosoft
    May 20, 2026

    Thanks, mlmason75​!  I'll pass this along!  

     

    As just a quick update, our developer has been able to reproduce the issue and is continuing to investigate.  

    • mlmason75's avatar
      mlmason75
      Brass Contributor
      May 28, 2026

      Hello,

      Any update on when the fix for this will make it into Edge?

       

      Thanks 

      • Kelly_Y's avatar
        Kelly_Y
        Icon for Microsoft rankMicrosoft
        May 28, 2026

        Hi mlmason75​ - I just talked to our developer and the team is still investigating, so no ETA yet but will keep you posted.  Thanks! 

        -Kelly