diff --git a/test/scenario/audio_stream.cc b/test/scenario/audio_stream.cc
index 577b9352ff..a4ec5aa292 100644
--- a/test/scenario/audio_stream.cc
+++ b/test/scenario/audio_stream.cc
@@ -96,8 +96,9 @@ SendAudioStream::SendAudioStream(
   if (config.encoder.fixed_rate)
     send_config.send_codec_spec->target_bitrate_bps =
         config.encoder.fixed_rate->bps();
-
-  if (config.network_adaptation) {
+  if (!config.adapt.binary_proto.empty()) {
+    send_config.audio_network_adaptor_config = config.adapt.binary_proto;
+  } else if (config.network_adaptation) {
     send_config.audio_network_adaptor_config =
         CreateAdaptationString(config.adapt);
   }
diff --git a/test/scenario/scenario_config.h b/test/scenario/scenario_config.h
index fa998b89eb..c9d636a67f 100644
--- a/test/scenario/scenario_config.h
+++ b/test/scenario/scenario_config.h
@@ -190,6 +190,7 @@ struct AudioStreamConfig {
       DataRate min_rate_for_60_ms = DataRate::Zero();
       DataRate max_rate_for_120_ms = DataRate::Infinity();
     } frame;
+    std::string binary_proto;
   } adapt;
   struct Encoder {
     Encoder();