diff --git a/lib/session/call-session.js b/lib/session/call-session.js
index 87881915..6b7edc77 100644
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
@@ -1335,17 +1335,17 @@ Duration=${duration} `
     for (const task of newTasks) {
       if (task.name === TaskName.Say) {
         /* identify vendor language, voice, and label */
-        const vendor = this.synthesizer.vendor && this.synthesizer.vendor !== 'default' ?
-          this.synthesizer.vendor :
+        const vendor = task.synthesizer.vendor && task.synthesizer.vendor !== 'default' ?
+          task.synthesizer.vendor :
           this.speechSynthesisVendor;
-        const language = this.synthesizer.language && this.synthesizer.language !== 'default' ?
-          this.synthesizer.language :
+        const language = task.synthesizer.language && task.synthesizer.language !== 'default' ?
+          task.synthesizer.language :
           this.speechSynthesisLanguage ;
-        const voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
-          this.synthesizer.voice :
+        const voice =  task.synthesizer.voice && task.synthesizer.voice !== 'default' ?
+          task.synthesizer.voice :
           this.speechSynthesisVoice;
-        const label = this.synthesizer.label && this.synthesizer.label !== 'default' ?
-          this.synthesizer.label :
+        const label = task.synthesizer.label && task.synthesizer.label !== 'default' ?
+          task.synthesizer.label :
           this.speechSynthesisLabel;
 
         this.logger.info({vendor, language, voice, label},