diff --git a/Core/CmdLine.cpp b/Core/CmdLine.cpp
index 7d7b2d2547..44801d626a 100644
--- a/Core/CmdLine.cpp
+++ b/Core/CmdLine.cpp
@@ -212,6 +212,7 @@ static const CommandLineParam g_autoParams[] = {
 	{POFF(screenshotRenderTarget), CmdParamType::Bool, "screenshot-render-target", '\0', "Take screenshots of the current render target instead of the displayed framebuffer", CmdLineMode::Headless},
 	{POFF(screenshotFilenameDiff), CmdParamType::String, "screenshot-diff", '\0', "Save a visual comparison image to FILE when comparing screenshots", CmdLineMode::Headless},
 	{POFF(screenshotSaveKeepAlpha), CmdParamType::Bool, "screenshot-keep-alpha", '\0', "Preserve the alpha channel when saving PNG screenshots (default: alpha is forced to 255)", CmdLineMode::Headless},
+	{POFF(dumpAudioFilename), CmdParamType::String, "dump-audio", '\0', "Record the mixed audio output to a WAV file", CmdLineMode::Headless},
 	{POFF(timeoutWall), CmdParamType::Double, "timeout-wall", '\0', "Stop the run after this many real seconds", CmdLineMode::Headless},
 	{POFF(timeoutEmulated), CmdParamType::Double, "timeout-emulated", '\0', "Stop the run after this many emulated seconds", CmdLineMode::Headless},
 	// The old name for --timeout-wall, kept working because it's in a lot of scripts.
diff --git a/Core/CmdLine.h b/Core/CmdLine.h
index d9f2367b20..e0b7e03148 100644
--- a/Core/CmdLine.h
+++ b/Core/CmdLine.h
@@ -180,6 +180,7 @@ struct CommandLineOptions {
 	std::optional<std::string> screenshotFilename;
 	std::optional<std::string> screenshotFilenameSave;
 	std::optional<std::string> depthFilenameSave;
+	std::optional<std::string> dumpAudioFilename;
 	std::optional<int> replayEnd;
 	// Headless: apply the game's compatibility settings when replaying a GE frame dump.
 	std::optional<bool> dumpCompat;
diff --git a/docs/debugging.md b/docs/debugging.md
index ce00f9c646..53742585fc 100644
--- a/docs/debugging.md
+++ b/docs/debugging.md
@@ -220,6 +220,10 @@ To smoke-test a CPU or GPU change on real games, run the old and the new binary
 run to run, so a different screenshot means different behaviour. God of War: Chains of Olympus isn't: its menu
 animation follows wall-clock time, so even the same binary lands on different frames.
 
+For audio, `--dump-audio=FILE.wav` records the mixed output (before the game volume setting) for the whole run.
+An audio glitch you can hear usually shows in the waveform: a click is a jump between neighbouring samples, and
+a repeated or dropped mixer block is two identical 64-sample runs in a row.
+
 Pass `--graphics` explicitly even when you want the default, so a copied command line doesn't depend on it. If a
 run goes silent with no CPU use, a host thread is blocked, and neither `--timeout-wall` nor `--timeout-emulated`
 will end it, as both are only checked when the emulation loop comes around.
diff --git a/headless/Headless.cpp b/headless/Headless.cpp
index 76ccdc3c59..f6284ae9fa 100644
--- a/headless/Headless.cpp
+++ b/headless/Headless.cpp
@@ -58,6 +58,7 @@
 #include "Core/CoreTiming.h"
 #include "Core/EmuThread.h"
 #include "Core/HLE/HLE.h"
+#include "Core/HLE/__sceAudio.h"
 #include "Core/MIPS/MIPSTables.h"
 #include "Core/System.h"
 #include "Core/Util/PSARUnpack.h"
@@ -1187,6 +1188,12 @@ int main(int argc, const char* argv[]) {
 	if (cmdLineOptions.screenshotFilenameSave.has_value()) {
 		SetScreenshotSavePath(Path(std::string(cmdLineOptions.screenshotFilenameSave.value())));
 	}
+	if (cmdLineOptions.dumpAudioFilename.has_value()) {
+		// The mixer only feeds the dump while sound is enabled.
+		g_Config.bEnableSound = true;
+		g_Config.bDumpAudio = true;
+		__StartLogAudio(Path(std::string(cmdLineOptions.dumpAudioFilename.value())));
+	}
 	if (cmdLineOptions.replayEnd.has_value()) {
 		GPURecord::SetReplayDrawLimit(cmdLineOptions.replayEnd.value());
 	}