Updating

LCU.Webapps.Marketing.SPIT/LCU.Webapps.Marketing.SPIT/LCU.Webapps.Marketing.SPIT/Pages/Index.razor

@@ -214,12 +214,19 @@
             return;
         }
 
-        await JSRuntime.InvokeVoidAsync(
-            "synthesizeSpeech",
-            spitConfiguration.SpeechApiKey,
-            spitConfiguration.Region,
-            spitConfiguration.ResolveSpeechSdkEndpointUri()?.ToString(),
-            _textToSpeech.Ssml);
+        try
+        {
+            await JSRuntime.InvokeVoidAsync(
+                "synthesizeSpeech",
+                spitConfiguration.SpeechApiKey,
+                spitConfiguration.Region,
+                spitConfiguration.ResolveSpeechSdkEndpointUri()?.ToString(),
+                _textToSpeech.Ssml);
+        }
+        catch (Microsoft.JSInterop.JSException)
+        {
+            toastService.ShowError("Unable to load the speech playback SDK in the browser. Disable content blocking for this site or reload and try again.");
+        }
     }
 
     public void OpenDirectory(string fileDestination)

LCU.Webapps.Marketing.SPIT/LCU.Webapps.Marketing.SPIT/LCU.Webapps.Marketing.SPIT/Services/TextToSpeechService.cs

@@ -22,6 +22,7 @@ namespace LCU.Webapps.Marketing.SPIT.Services
             try
             {
                 var speechConfig = BuildSpeechConfig();
+                speechConfig.SetSpeechSynthesisOutputFormat(SpeechSynthesisOutputFormat.Riff16Khz16BitMonoPcm);
                 speechConfig.SpeechSynthesisVoiceName = textToSpeech.SelectedVoiceShortName;
                 var finalDestination = (_spitConfiguration.FileDestination ?? string.Empty).Trim();
                 if (string.IsNullOrWhiteSpace(finalDestination))

LCU.Webapps.Marketing.SPIT/LCU.Webapps.Marketing.SPIT/LCU.Webapps.Marketing.SPIT/wwwroot/js/SpeechFunctions.js

@@ -1,14 +1,15 @@
 function synthesizeSpeech(subscriptionKey, region, endpoint, ssml) {
-    var SpeechSDK;
-    if (!!window.SpeechSDK) {
-        SpeechSDK = window.SpeechSDK;
+    const speechSdk = window.SpeechSDK;
+
+    if (!speechSdk) {
+        throw new Error("Speech SDK is unavailable. The browser likely blocked the SDK script.");
     }
 
     const speechConfig = endpoint
-        ? SpeechSDK.SpeechConfig.fromEndpoint(new URL(endpoint), subscriptionKey)
-        : SpeechSDK.SpeechConfig.fromSubscription(subscriptionKey, region);
-    const audioConfig = SpeechSDK.AudioConfig.fromDefaultSpeakerOutput();
-    let synthesizer = new SpeechSDK.SpeechSynthesizer(speechConfig, audioConfig);
+        ? speechSdk.SpeechConfig.fromEndpoint(new URL(endpoint), subscriptionKey)
+        : speechSdk.SpeechConfig.fromSubscription(subscriptionKey, region);
+    const audioConfig = speechSdk.AudioConfig.fromDefaultSpeakerOutput();
+    let synthesizer = new speechSdk.SpeechSynthesizer(speechConfig, audioConfig);
 
     synthesizer.speakSsmlAsync(
         ssml,