Extra error handling

Author: laves

demo/package.json

@@ -17,7 +17,7 @@
   "author": "Picovoice Inc",
   "license": "Apache-2.0",
   "dependencies": {
-    "@picovoice/web-voice-processor": "^4.0.4",
+    "@picovoice/web-voice-processor": "^4.0.6",
     "http-server": "^14.0.0",
     "wavefile": "^11.0.0"
   }

demo/yarn.lock

@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@picovoice/web-voice-processor@^4.0.4":
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/@picovoice/web-voice-processor/-/web-voice-processor-4.0.4.tgz#12140c9a0120e0db9dda80bcf00d7f827f1a8c99"
-  integrity sha512-WZ4PPXU0i/yPzIjd+jbx9VSMF6Shbyf2BXt2U7a6MASJ2KWeG9+zDx6nteDF10cyG3T78G+4EB24tLsdyLVmWw==
+"@picovoice/web-voice-processor@^4.0.6":
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/@picovoice/web-voice-processor/-/web-voice-processor-4.0.6.tgz#4769283b82f64d3625794f7290d47c6d477a3f41"
+  integrity sha512-Ykfy6hrWFpOklfeN7rSJb5CGim8wDu7J+l8imRYyQxWHWVV1Wu5S8FW69zkJmwiDG2Wx+M2+h0SCMS+hNM5qow==
 
 ansi-styles@^4.1.0:
   version "4.3.0"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@picovoice/web-voice-processor",
-  "version": "4.0.5",
+  "version": "4.0.6",
   "description": "Real-time audio processing for voice, in web browsers",
   "entry": "src/index.ts",
   "module": "dist/esm/index.js",

src/web_voice_processor.ts

@@ -93,6 +93,10 @@ export class WebVoiceProcessor {
    */
   public static async subscribe(engines: PvEngine | PvEngine[]): Promise<void> {
     for (const engine of (Array.isArray(engines) ? engines : [engines])) {
+      if (!engine) {
+        throw new WvpError("InvalidEngine", "Null or undefined engine.");
+      }
+
       if (engine.worker) {
         if (engine.worker.postMessage && typeof engine.worker.postMessage === 'function') {
           this.instance()._engines.add(engine);
@@ -195,21 +199,23 @@ export class WebVoiceProcessor {
               await this._audioContext.resume();
             }
           } catch (error: any) {
-            if (error.name === 'SecurityError' || error.name === 'NotAllowedError') {
-              throw new WvpError(
-                'PermissionError',
-                'Failed to record audio: microphone permissions denied.'
-              );
-            } else if (error.name === 'NotFoundError' || error.name === 'OverconstrainedError') {
-              throw new WvpError(
-                'DeviceMissingError',
-                'Failed to record audio: audio recording device was not found.'
-              );
-            } else if (error.name === 'NotReadableError') {
-              throw new WvpError(
-                'DeviceReadError',
-                'Failed to record audio: audio recording device is not working correctly.'
-              );
+            if (error && error.name) {
+              if (error.name === 'SecurityError' || error.name === 'NotAllowedError') {
+                throw new WvpError(
+                  'PermissionError',
+                  'Failed to record audio: microphone permissions denied.'
+                );
+              } else if (error.name === 'NotFoundError' || error.name === 'OverconstrainedError') {
+                throw new WvpError(
+                  'DeviceMissingError',
+                  'Failed to record audio: audio recording device was not found.'
+                );
+              } else if (error.name === 'NotReadableError') {
+                throw new WvpError(
+                  'DeviceReadError',
+                  'Failed to record audio: audio recording device is not working correctly.'
+                );
+              }
             } else {
               throw error;
             }