diff --git a/nx/include/switch/services/aud.h b/nx/include/switch/services/aud.h
new file mode 100644
index 000000000..b282a6a37
--- /dev/null
+++ b/nx/include/switch/services/aud.h
@@ -0,0 +1,47 @@
+/**
+ * @file aud.h
+ * @brief Only available on [11.0.0+].
+ * @note Only one session may be open at once.
+ * @author TotalJustice
+ * @copyright libnx Authors
+ */
+
+#pragma once
+
+#include "../types.h"
+#include "../sf/service.h"
+
+#define AUD_MAX_DELAY (1000000000ULL)
+
+/// Initialize aud:a. Only available on [11.0.0+].
+Result audaInitialize(void);
+
+/// Exit aud:a.
+void audaExit(void);
+
+/// Initialize aud:d. Only available on [11.0.0+].
+Result auddInitialize(void);
+
+/// Exit aud:d.
+void auddExit(void);
+
+/// Gets the Service for aud:a.
+Service* audaGetServiceSession(void);
+
+/// Gets the Service for aud:d.
+Service* auddGetServiceSession(void);
+
+Result audaRequestSuspendAudio(u64 pid, u64 delay);
+Result audaRequestResumeAudio(u64 pid, u64 delay);
+Result audaGetAudioOutputProcessMasterVolume(u64 pid, float* volume_out);
+
+Result audaSetAudioOutputProcessMasterVolume(u64 pid, u64 delay, float volume);
+Result audaGetAudioInputProcessMasterVolume(u64 pid, float* volume_out);
+
+// Sets both Output and Input volume
+Result audaSetAudioInputProcessMasterVolume(u64 pid, u64 delay, float volume);
+Result audaGetAudioOutputProcessRecordVolume(u64 pid, float* volume_out);
+Result audaSetAudioOutputProcessRecordVolume(u64 pid, u64 delay, float volume);
+
+Result auddRequestSuspendAudioForDebug(u64 pid, u64 delay);
+Result auddRequestResumeAudioForDebug(u64 pid, u64 delay);
diff --git a/nx/include/switch/services/audout.h b/nx/include/switch/services/audout.h
index 8a49a9b2b..c996066ff 100644
--- a/nx/include/switch/services/audout.h
+++ b/nx/include/switch/services/audout.h
@@ -10,6 +10,8 @@
 #include "../audio/audio.h"
 #include "../sf/service.h"
 
+#define AUDOUT_MAX_DELAY (1000000000ULL)
+
 typedef enum {
     AudioOutState_Started = 0,
     AudioOutState_Stopped = 1,
@@ -33,12 +35,30 @@ Result audoutInitialize(void);
 /// Exit audout.
 void audoutExit(void);
 
+/// Initialize audout:a. Removed in [11.0.0].
+Result audoutaInitialize(void);
+
+/// Exit audout:a.
+void audoutaExit(void);
+
+/// Initialize audout:d. Removed in [11.0.0].
+Result audoutdInitialize(void);
+
+/// Exit audout:d.
+void audoutdExit(void);
+
 /// Gets the Service object for the actual audout service session.
 Service* audoutGetServiceSession(void);
 
 /// Gets the Service object for IAudioOut.
 Service* audoutGetServiceSession_AudioOut(void);
 
+/// Gets the Service for audout:a.
+Service* audoutaGetServiceSession(void);
+
+/// Gets the Service for audout:d.
+Service* audoutdGetServiceSession(void);
+
 Result audoutListAudioOuts(char *DeviceNames, s32 count, u32 *DeviceNamesCount);
 Result audoutOpenAudioOut(const char *DeviceNameIn, char *DeviceNameOut, u32 SampleRateIn, u32 ChannelCountIn, u32 *SampleRateOut, u32 *ChannelCountOut, PcmFormat *Format, AudioOutState *State);
 Result audoutGetAudioOutState(AudioOutState *State);
@@ -83,3 +103,15 @@ u32 audoutGetSampleRate(void);                      ///< Supported sample rate (
 u32 audoutGetChannelCount(void);                    ///< Supported channel count (2 channels).
 PcmFormat audoutGetPcmFormat(void);                 ///< Supported PCM format (Int16).
 AudioOutState audoutGetDeviceState(void);           ///< Initial device state (stopped).
+
+Result audoutaRequestSuspendOld(u64 pid, u64 delay, Handle* handle_out); // [1.0.0] - [4.0.0]
+Result audoutaRequestResumeOld(u64 pid, u64 delay, Handle* handle_out); // [1.0.0] - [4.0.0]
+Result audoutaRequestSuspend(u64 pid, u64 delay); // [4.0.0]+
+Result audoutaRequestResume(u64 pid, u64 delay); // [4.0.0]+
+Result audoutaGetProcessMasterVolume(u64 pid, float* volume_out);
+Result audoutaSetProcessMasterVolume(u64 pid, u64 delay, float volume);
+Result audoutaGetProcessRecordVolume(u64 pid, float* volume_out);
+Result audoutaSetProcessRecordVolume(u64 pid, u64 delay, float volume);
+
+Result audoutdRequestSuspendForDebug(u64 pid, u64 delay);
+Result audoutdRequestResumeForDebug(u64 pid, u64 delay);
diff --git a/nx/source/services/aud.c b/nx/source/services/aud.c
new file mode 100644
index 000000000..018091337
--- /dev/null
+++ b/nx/source/services/aud.c
@@ -0,0 +1,115 @@
+#define NX_SERVICE_ASSUME_NON_DOMAIN
+#include "service_guard.h"
+#include "services/aud.h"
+#include "runtime/hosversion.h"
+
+static Service g_audaSrv;
+static Service g_auddSrv;
+
+NX_GENERATE_SERVICE_GUARD(auda);
+NX_GENERATE_SERVICE_GUARD(audd);
+
+Result _audaInitialize(void) {
+    if (hosversionBefore(11,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return smGetService(&g_audaSrv, "aud:a");
+}
+
+void _audaCleanup(void) {
+    serviceClose(&g_audaSrv);
+}
+
+Result _auddInitialize(void) {
+    return smGetService(&g_auddSrv, "aud:d");
+}
+
+void _auddCleanup(void) {
+    serviceClose(&g_auddSrv);
+}
+
+Service* audaGetServiceSession(void) {
+    return &g_audaSrv;
+}
+
+Service* auddGetServiceSession(void) {
+    return &g_auddSrv;
+}
+
+Result audaRequestSuspendAudio(u64 pid, u64 delay) {
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_audaSrv, 2, in);
+}
+
+Result audaRequestResumeAudio(u64 pid, u64 delay) {
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_audaSrv, 3, in);
+}
+
+Result audaGetAudioOutputProcessMasterVolume(u64 pid, float* volume_out) {
+    return serviceDispatchInOut(&g_audaSrv, 4, pid, *volume_out);
+}
+
+Result audaSetAudioOutputProcessMasterVolume(u64 pid, u64 delay, float volume) {
+    const struct {
+        float volume;
+        u64 pid;
+        u64 delay;
+    } in = { volume, pid, delay };
+
+    return serviceDispatchIn(&g_audaSrv, 5, in);
+}
+
+Result audaGetAudioInputProcessMasterVolume(u64 pid, float* volume_out) {
+    return serviceDispatchInOut(&g_audaSrv, 6, pid, *volume_out);
+}
+
+Result audaSetAudioInputProcessMasterVolume(u64 pid, u64 delay, float volume) {
+    const struct {
+        float volume;
+        u64 pid;
+        u64 delay;
+    } in = { volume, pid, delay };
+
+    return serviceDispatchIn(&g_audaSrv, 7, in);
+}
+
+Result audaGetAudioOutputProcessRecordVolume(u64 pid, float* volume_out) {
+    return serviceDispatchInOut(&g_audaSrv, 8, pid, *volume_out);
+}
+
+Result audaSetAudioOutputProcessRecordVolume(u64 pid, u64 delay, float volume) {
+    const struct {
+        float volume;
+        u64 pid;
+        u64 delay;
+    } in = { volume, pid, delay };
+
+    return serviceDispatchIn(&g_audaSrv, 9, in);
+}
+
+Result auddRequestSuspendAudioForDebug(u64 pid, u64 delay) {
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_auddSrv, 0, in);
+}
+
+Result auddRequestResumeAudioForDebug(u64 pid, u64 delay) {
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_auddSrv, 1, in);
+}
diff --git a/nx/source/services/audout.c b/nx/source/services/audout.c
index c1d6ac8c3..5f685fccd 100644
--- a/nx/source/services/audout.c
+++ b/nx/source/services/audout.c
@@ -11,6 +11,8 @@
 
 static Service g_audoutSrv;
 static Service g_audoutIAudioOut;
+static Service g_audoutaSrv;
+static Service g_audoutdSrv;
 
 static Event g_audoutBufferEvent;
 
@@ -22,6 +24,8 @@ static AudioOutState g_deviceState = AudioOutState_Stopped;
 static Result _audoutRegisterBufferEvent(Event *BufferEvent);
 
 NX_GENERATE_SERVICE_GUARD(audout);
+NX_GENERATE_SERVICE_GUARD(audouta);
+NX_GENERATE_SERVICE_GUARD(audoutd);
 
 Result _audoutInitialize(void) {
     Result rc = 0;
@@ -56,6 +60,28 @@ void _audoutCleanup(void) {
     serviceClose(&g_audoutSrv);
 }
 
+Result _audoutaInitialize(void) {
+    if (hosversionAtLeast(11,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return smGetService(&g_audoutaSrv, "audout:a");
+}
+
+void _audoutaCleanup(void) {
+    serviceClose(&g_audoutaSrv);
+}
+
+Result _audoutdInitialize(void) {
+    if (hosversionAtLeast(11,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return smGetService(&g_audoutdSrv, "audout:d");
+}
+
+void _audoutdCleanup(void) {
+    serviceClose(&g_audoutdSrv);
+}
+
 Service* audoutGetServiceSession(void) {
     return &g_audoutSrv;
 }
@@ -64,6 +90,14 @@ Service* audoutGetServiceSession_AudioOut(void) {
     return &g_audoutIAudioOut;
 }
 
+Service* audoutaGetServiceSession(void) {
+    return &g_audoutaSrv;
+}
+
+Service* audoutdGetServiceSession(void) {
+    return &g_audoutdSrv;
+}
+
 u32 audoutGetSampleRate(void) {
     return g_sampleRate;
 }
@@ -259,3 +293,103 @@ Result audoutGetAudioOutVolume(float *volume) {
 
     return serviceDispatchOut(&g_audoutIAudioOut, 13, *volume);
 }
+
+Result audoutaRequestSuspendOld(u64 pid, u64 delay, Handle* handle_out) {
+    if (hosversionAtLeast(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchInOut(&g_audoutaSrv, 0, in, *handle_out);
+}
+
+Result audoutaRequestResumeOld(u64 pid, u64 delay, Handle* handle_out) {
+    if (hosversionAtLeast(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchInOut(&g_audoutaSrv, 1, in, *handle_out);
+}
+
+Result audoutaRequestSuspend(u64 pid, u64 delay) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_audoutaSrv, 0, in);
+}
+
+Result audoutaRequestResume(u64 pid, u64 delay) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_audoutaSrv, 1, in);
+}
+
+Result audoutaGetProcessMasterVolume(u64 pid, float* volume_out) {
+    return serviceDispatchInOut(&g_audoutaSrv, 2, pid, *volume_out);
+}
+
+Result audoutaSetProcessMasterVolume(u64 pid, u64 delay, float volume) {
+    const struct {
+        float volume;
+        u64 pid;
+        u64 delay;
+    } in = { volume, pid, delay };
+
+    return serviceDispatchIn(&g_audoutaSrv, 3, in);
+}
+
+Result audoutaGetProcessRecordVolume(u64 pid, float* volume_out) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return serviceDispatchInOut(&g_audoutaSrv, 4, pid, *volume_out);
+}
+
+Result audoutaSetProcessRecordVolume(u64 pid, u64 delay, float volume) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    const struct {
+        float volume;
+        u64 pid;
+        u64 delay;
+    } in = { volume, pid, delay };
+
+    return serviceDispatchIn(&g_audoutaSrv, 5, in);
+}
+
+Result audoutdRequestSuspendForDebug(u64 pid, u64 delay) {
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_audoutdSrv, 0, in);
+}
+
+Result audoutdRequestResumeForDebug(u64 pid, u64 delay) {
+    const struct {
+        u64 pid;
+        u64 delay;
+    } in = { pid, delay };
+
+    return serviceDispatchIn(&g_audoutdSrv, 1, in);
+}