diff --git a/lib/tasks/gather.js b/lib/tasks/gather.js
index 0c974150..dc0150cb 100644
--- a/lib/tasks/gather.js
+++ b/lib/tasks/gather.js
@@ -484,6 +484,10 @@ class TaskGather extends Task {
     this.logger.debug({evt, bugname, finished}, 'Gather:_onTranscription');
     if (bugname && this.bugname !== bugname) return;
 
+    if (this.vendor === 'ibm') {
+      if (evt?.state === 'listening') return;
+    }
+
     evt = this.normalizeTranscription(evt, this.vendor, 1, this.language);
 
     /* count words for bargein feature */
diff --git a/lib/tasks/transcribe.js b/lib/tasks/transcribe.js
index 3652783e..9df0f3fa 100644
--- a/lib/tasks/transcribe.js
+++ b/lib/tasks/transcribe.js
@@ -226,6 +226,9 @@ class TaskTranscribe extends Task {
     const bugname = fsEvent.getHeader('media-bugname');
     if (bugname && this.bugname !== bugname) return;
 
+    if (this.vendor === 'ibm') {
+      if (evt?.state === 'listening') return;
+    }
     this.logger.debug({evt}, 'TaskTranscribe:_onTranscription - before normalization');
 
     evt = this.normalizeTranscription(evt, this.vendor, channel, this.language);