Azure Cognitive Speech Services Failed with error: WS_OPEN_ERROR_UNDERLYING_IO_OPEN_FAILED

Hello,

Thanks for reaching out to us, could you please confirm that your resource ID and other information you are using to call is correct? Could you also confirm that you have set your networking to allow all traffic?

As you are trying to call the recognize API, could you please try below code -

string resourceId = "Your Resource ID";
string aadToken = "Your Azure AD access token";
string region =  "Your Speech Region";
// You need to include the "aad#" prefix and the "#" (hash) separator between resource ID and AAD access token.
var authorizationToken = $"aad#{resourceId}#{aadToken}";
var speechConfig = SpeechTranslationConfig.FromAuthorizationToken(authorizationToken, region);

Please let us know how it works.

Regards,

Yutong

Hello Yutong,

thank you for your answer. Unfortunately I haven't fix the issue. I'm trying to call the Speech Services API, so I'm using the SpeechConfig.

Here is my updated code which still gives me the error:

public async Task<SpeechConfig> CreateAsync(string language = "pl-PL")
{
    var resourceId = "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/RG-WestEurope-SpeechServices-test2/providers/Microsoft.CognitiveServices/accounts/CognitiveServices-Speech-test2";
    var region = "westeurope";
    var tokenRequestContext = new TokenRequestContext(["https://cognitiveservices.azure.com/.default"]);
    var azureCredential = new DefaultAzureCredential();
    var tokenRequestResult = await azureCredential.GetTokenAsync(tokenRequestContext, default);
    var aadToken = tokenRequestResult.Token;
    // You need to include the "aad#" prefix and the "#" (hash) separator between resource ID and AAD access token.
    var authorizationToken = $"aad#{resourceId}#{aadToken}";
    var config = SpeechConfig.FromAuthorizationToken(authorizationToken, region);
    config.SetProperty("OPENSSL_DISABLE_CRL_CHECK", "true");
    config.SetProperty(PropertyId.Speech_LogFilename, "/tmp/speechLog.txt");
    return config;
}

I'm attaching my log file.

Could you please check what could be the issue here?

Hey Yutong,

thank you for your feedback. Unfortunately that didn't fix the issue. I'm connecting to the speech services API, so I'm using the SpeechConfig class.

I've updated the code so now all is in one place, could you please have a look if there are any issues with the code?

public async Task<SpeechConfig> CreateAsync(string language = "pl-PL")
{
    var resourceId = "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/RG-WestEurope-SpeechServices-test2/providers/Microsoft.CognitiveServices/accounts/CognitiveServices-Speech-test2";
    var region = "westeurope";
    var tokenRequestContext = new TokenRequestContext(["https://cognitiveservices.azure.com/.default"]);
    var azureCredential = new DefaultAzureCredential();
    var tokenRequestResult = await azureCredential.GetTokenAsync(tokenRequestContext, default);
    var aadToken = tokenRequestResult.Token;
    // You need to include the "aad#" prefix and the "#" (hash) separator between resource ID and AAD access token.
    var authorizationToken = $"aad#{resourceId}#{aadToken}";
    var config = SpeechConfig.FromAuthorizationToken(authorizationToken, region);
    config.SetProperty("OPENSSL_DISABLE_CRL_CHECK", "true");
    config.SetProperty(PropertyId.Speech_LogFilename, "/tmp/speechLog.txt");
    return config;
}

I'm attaching the log file for more context speechLog.txt

I've switched to the WorkloadIdentityCredential but the issue still exists.

Anyone knows what could be the issue? The code is working fine using private andpoint and subscription key.

I forgot to mention, but I'm trying to connect to the private endpoint of Speech Services:

https://video2.skills-academy.com/en-us/azure/ai-services/speech-service/speech-services-private-link?tabs=portal

So my {domain} parameter is the my-private-link-speech from article.

Is it possible to connect to a private endpoint using Microsoft Entra access token?