diff --git a/src/modules/audio_processing/test/process_test.cc b/src/modules/audio_processing/test/process_test.cc
index d5e8a06d56..aede7b7a2c 100644
--- a/src/modules/audio_processing/test/process_test.cc
+++ b/src/modules/audio_processing/test/process_test.cc
@@ -120,6 +120,7 @@ void usage() {
   printf("\n");
   printf("Modifiers:\n");
   printf("  --noasm            Disable SSE optimization.\n");
+  printf("  --delay DELAY      Add DELAY ms to input value.\n");
   printf("  --perf             Measure performance.\n");
   printf("  --quiet            Suppress text output.\n");
   printf("  --no_progress      Suppress progress.\n");
@@ -167,6 +168,7 @@ void void_main(int argc, char* argv[]) {
   bool perf_testing = false;
   bool verbose = true;
   bool progress = true;
+  int extra_delay_ms = 0;
   //bool interleaved = true;
 
   for (int i = 1; i < argc; i++) {
@@ -346,6 +348,10 @@ void void_main(int argc, char* argv[]) {
       // We need to reinitialize here if components have already been enabled.
       ASSERT_EQ(apm->kNoError, apm->Initialize());
 
+    } else if (strcmp(argv[i], "--delay") == 0) {
+      i++;
+      ASSERT_EQ(1, sscanf(argv[i], "%d", &extra_delay_ms));
+
     } else if (strcmp(argv[i], "--perf") == 0) {
       perf_testing = true;
 
@@ -619,7 +625,7 @@ void void_main(int argc, char* argv[]) {
         ASSERT_EQ(apm->kNoError,
                   apm->gain_control()->set_stream_analog_level(msg.level()));
         ASSERT_EQ(apm->kNoError,
-                  apm->set_stream_delay_ms(msg.delay()));
+                  apm->set_stream_delay_ms(msg.delay() + extra_delay_ms));
         ASSERT_EQ(apm->kNoError,
             apm->echo_cancellation()->set_stream_drift_samples(msg.drift()));
 
@@ -813,7 +819,7 @@ void void_main(int argc, char* argv[]) {
         ASSERT_EQ(apm->kNoError,
                   apm->gain_control()->set_stream_analog_level(capture_level));
         ASSERT_EQ(apm->kNoError,
-                  apm->set_stream_delay_ms(delay_ms));
+                  apm->set_stream_delay_ms(delay_ms + extra_delay_ms));
         ASSERT_EQ(apm->kNoError,
             apm->echo_cancellation()->set_stream_drift_samples(drift_samples));