From 38d3e7932b349aa8d90f09b44eac6b1f883fab49 Mon Sep 17 00:00:00 2001
From: lukasIO <mail@lukasseiler.de>
Date: Wed, 11 Feb 2026 16:51:19 +0100
Subject: [PATCH 1/2] Ensure resampling is skipped for empty audio frames

---
 agents/src/stt/stt.ts |  5 +++++
 agents/src/utils.ts   | 12 ++++++++++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/agents/src/stt/stt.ts b/agents/src/stt/stt.ts
index 50f33bc71..837aae5b4 100644
--- a/agents/src/stt/stt.ts
+++ b/agents/src/stt/stt.ts
@@ -351,6 +351,11 @@ export abstract class SpeechStream implements AsyncIterableIterator<SpeechEvent>
       }
     }
 
+    if (frame.samplesPerChannel === 0) {
+      this.input.put(frame);
+      return;
+    }
+
     if (this.resampler) {
       const frames = this.resampler.push(frame);
       for (const frame of frames) {
diff --git a/agents/src/utils.ts b/agents/src/utils.ts
index 75033ff9a..fdd3c69ed 100644
--- a/agents/src/utils.ts
+++ b/agents/src/utils.ts
@@ -651,14 +651,22 @@ export function resampleStream({
   let resampler: AudioResampler | null = null;
   const transformStream = new TransformStream<AudioFrame, AudioFrame>({
     transform(chunk: AudioFrame, controller: TransformStreamDefaultController<AudioFrame>) {
+      if (chunk.samplesPerChannel === 0) {
+        controller.enqueue(chunk);
+        return;
+      }
       if (!resampler) {
         resampler = new AudioResampler(chunk.sampleRate, outputRate);
       }
       for (const frame of resampler.push(chunk)) {
         controller.enqueue(frame);
       }
-      for (const frame of resampler.flush()) {
-        controller.enqueue(frame);
+    },
+    flush(controller) {
+      if (resampler) {
+        for (const frame of resampler.flush()) {
+          controller.enqueue(frame);
+        }
       }
     },
   });

From 03114de0fd8ca7d2fc82b3de22057ada8b40c22e Mon Sep 17 00:00:00 2001
From: Brian Yin <brian.yin@livekit.io>
Date: Wed, 11 Feb 2026 15:16:34 -0800
Subject: [PATCH 2/2] Create fair-needles-obey.md

---
 .changeset/fair-needles-obey.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/fair-needles-obey.md

diff --git a/.changeset/fair-needles-obey.md b/.changeset/fair-needles-obey.md
new file mode 100644
index 000000000..6e8854b58
--- /dev/null
+++ b/.changeset/fair-needles-obey.md
@@ -0,0 +1,5 @@
+---
+"@livekit/agents": patch
+---
+
+Ensure resampling is skipped for empty audio frames