diff --git a/pc/peerconnection.cc b/pc/peerconnection.cc
index e60474ca1d..9549c42830 100644
--- a/pc/peerconnection.cc
+++ b/pc/peerconnection.cc
@@ -3311,9 +3311,13 @@ bool PeerConnection::StartRtcEventLog(rtc::PlatformFile file,
   const size_t max_size = (max_size_bytes < 0)
                               ? RtcEventLog::kUnlimitedOutput
                               : rtc::saturated_cast<size_t>(max_size_bytes);
+  int64_t output_period_ms = webrtc::RtcEventLog::kImmediateOutput;
+  if (field_trial::IsEnabled("WebRTC-RtcEventLogNewFormat")) {
+    output_period_ms = 5000;
+  }
   return StartRtcEventLog(
       absl::make_unique<RtcEventLogOutputFile>(file, max_size),
-      webrtc::RtcEventLog::kImmediateOutput);
+      output_period_ms);
 }
 
 bool PeerConnection::StartRtcEventLog(std::unique_ptr<RtcEventLogOutput> output,