diff --git a/sdk/BUILD.gn b/sdk/BUILD.gn
index 7e973ddfce..dc9bd64a76 100644
--- a/sdk/BUILD.gn
+++ b/sdk/BUILD.gn
@@ -392,6 +392,20 @@ if (is_ios || is_mac) {
       }
     }
 
+    rtc_library("audio_device_objc") {
+      visibility = [ "*" ]
+
+      sources = [
+        "objc/native/src/objc_audio_device.h",
+        "objc/native/src/objc_audio_device.mm",
+      ]
+
+      deps = [
+        "../modules/audio_device:audio_device_api",
+        "../rtc_base:logging",
+      ]
+    }
+
     rtc_library("videosource_objc") {
       sources = [
         "objc/api/peerconnection/RTCVideoSource+Private.h",
diff --git a/sdk/objc/native/src/objc_audio_device.h b/sdk/objc/native/src/objc_audio_device.h
new file mode 100644
index 0000000000..88628894ae
--- /dev/null
+++ b/sdk/objc/native/src/objc_audio_device.h
@@ -0,0 +1,132 @@
+/*
+ *  Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef SDK_OBJC_NATIVE_SRC_OBJC_AUDIO_DEVICE_H_
+#define SDK_OBJC_NATIVE_SRC_OBJC_AUDIO_DEVICE_H_
+
+#include "modules/audio_device/include/audio_device.h"
+
+namespace webrtc {
+
+namespace objc_adm {
+
+class ObjCAudioDeviceModule : public AudioDeviceModule {
+ public:
+  ObjCAudioDeviceModule();
+  ~ObjCAudioDeviceModule() override;
+
+  // Retrieve the currently utilized audio layer
+  int32_t ActiveAudioLayer(AudioLayer* audioLayer) const override;
+
+  // Full-duplex transportation of PCM audio
+  int32_t RegisterAudioCallback(AudioTransport* audioCallback) override;
+
+  // Main initialization and termination
+  int32_t Init() override;
+  int32_t Terminate() override;
+  bool Initialized() const override;
+
+  // Device enumeration
+  int16_t PlayoutDevices() override;
+  int16_t RecordingDevices() override;
+  int32_t PlayoutDeviceName(uint16_t index,
+                            char name[kAdmMaxDeviceNameSize],
+                            char guid[kAdmMaxGuidSize]) override;
+  int32_t RecordingDeviceName(uint16_t index,
+                              char name[kAdmMaxDeviceNameSize],
+                              char guid[kAdmMaxGuidSize]) override;
+
+  // Device selection
+  int32_t SetPlayoutDevice(uint16_t index) override;
+  int32_t SetPlayoutDevice(WindowsDeviceType device) override;
+  int32_t SetRecordingDevice(uint16_t index) override;
+  int32_t SetRecordingDevice(WindowsDeviceType device) override;
+
+  // Audio transport initialization
+  int32_t PlayoutIsAvailable(bool* available) override;
+  int32_t InitPlayout() override;
+  bool PlayoutIsInitialized() const override;
+  int32_t RecordingIsAvailable(bool* available) override;
+  int32_t InitRecording() override;
+  bool RecordingIsInitialized() const override;
+
+  // Audio transport control
+  int32_t StartPlayout() override;
+  int32_t StopPlayout() override;
+  bool Playing() const override;
+  int32_t StartRecording() override;
+  int32_t StopRecording() override;
+  bool Recording() const override;
+
+  // Audio mixer initialization
+  int32_t InitSpeaker() override;
+  bool SpeakerIsInitialized() const override;
+  int32_t InitMicrophone() override;
+  bool MicrophoneIsInitialized() const override;
+
+  // Speaker volume controls
+  int32_t SpeakerVolumeIsAvailable(bool* available) override;
+  int32_t SetSpeakerVolume(uint32_t volume) override;
+  int32_t SpeakerVolume(uint32_t* volume) const override;
+  int32_t MaxSpeakerVolume(uint32_t* maxVolume) const override;
+  int32_t MinSpeakerVolume(uint32_t* minVolume) const override;
+
+  // Microphone volume controls
+  int32_t MicrophoneVolumeIsAvailable(bool* available) override;
+  int32_t SetMicrophoneVolume(uint32_t volume) override;
+  int32_t MicrophoneVolume(uint32_t* volume) const override;
+  int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const override;
+  int32_t MinMicrophoneVolume(uint32_t* minVolume) const override;
+
+  // Speaker mute control
+  int32_t SpeakerMuteIsAvailable(bool* available) override;
+  int32_t SetSpeakerMute(bool enable) override;
+  int32_t SpeakerMute(bool* enabled) const override;
+
+  // Microphone mute control
+  int32_t MicrophoneMuteIsAvailable(bool* available) override;
+  int32_t SetMicrophoneMute(bool enable) override;
+  int32_t MicrophoneMute(bool* enabled) const override;
+
+  // Stereo support
+  int32_t StereoPlayoutIsAvailable(bool* available) const override;
+  int32_t SetStereoPlayout(bool enable) override;
+  int32_t StereoPlayout(bool* enabled) const override;
+  int32_t StereoRecordingIsAvailable(bool* available) const override;
+  int32_t SetStereoRecording(bool enable) override;
+  int32_t StereoRecording(bool* enabled) const override;
+
+  // Playout delay
+  int32_t PlayoutDelay(uint16_t* delayMS) const override;
+
+  // Only supported on Android.
+  bool BuiltInAECIsAvailable() const override;
+  bool BuiltInAGCIsAvailable() const override;
+  bool BuiltInNSIsAvailable() const override;
+
+  // Enables the built-in audio effects. Only supported on Android.
+  int32_t EnableBuiltInAEC(bool enable) override;
+  int32_t EnableBuiltInAGC(bool enable) override;
+  int32_t EnableBuiltInNS(bool enable) override;
+
+  // Play underrun count. Only supported on Android.
+  int32_t GetPlayoutUnderrunCount() const override;
+
+#if defined(WEBRTC_IOS)
+  int GetPlayoutAudioParameters(AudioParameters* params) const override;
+  int GetRecordAudioParameters(AudioParameters* params) const override;
+#endif  // WEBRTC_IOS
+};
+
+}  // namespace objc_adm
+
+}  // namespace webrtc
+
+#endif  // SDK_OBJC_NATIVE_SRC_OBJC_AUDIO_DEVICE_H_
diff --git a/sdk/objc/native/src/objc_audio_device.mm b/sdk/objc/native/src/objc_audio_device.mm
new file mode 100644
index 0000000000..b252031bbf
--- /dev/null
+++ b/sdk/objc/native/src/objc_audio_device.mm
@@ -0,0 +1,309 @@
+/*
+ *  Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "objc_audio_device.h"
+
+#include "rtc_base/logging.h"
+
+namespace webrtc {
+namespace objc_adm {
+
+ObjCAudioDeviceModule::ObjCAudioDeviceModule() {
+  RTC_DLOG_F(LS_VERBOSE) << "";
+}
+
+ObjCAudioDeviceModule::~ObjCAudioDeviceModule() {
+  RTC_DLOG_F(LS_VERBOSE) << "";
+}
+
+int32_t ObjCAudioDeviceModule::RegisterAudioCallback(AudioTransport* audioCallback) {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::Init() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::Terminate() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+bool ObjCAudioDeviceModule::Initialized() const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::PlayoutIsAvailable(bool* available) {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+bool ObjCAudioDeviceModule::PlayoutIsInitialized() const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::InitPlayout() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+bool ObjCAudioDeviceModule::Playing() const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::StartPlayout() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::StopPlayout() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::PlayoutDelay(uint16_t* delayMS) const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::RecordingIsAvailable(bool* available) {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+bool ObjCAudioDeviceModule::RecordingIsInitialized() const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::InitRecording() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+bool ObjCAudioDeviceModule::Recording() const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::StartRecording() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::StopRecording() {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+#if defined(WEBRTC_IOS)
+
+int ObjCAudioDeviceModule::GetPlayoutAudioParameters(AudioParameters* params) const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+int ObjCAudioDeviceModule::GetRecordAudioParameters(AudioParameters* params) const {
+  RTC_DLOG_F(LS_VERBOSE) << "Not yet implemented";
+  return -1;
+}
+
+#endif  // WEBRTC_IOS
+
+#pragma mark - Not implemented/Not relevant
+
+int32_t ObjCAudioDeviceModule::ActiveAudioLayer(AudioLayer* audioLayer) const {
+  return -1;
+}
+
+int16_t ObjCAudioDeviceModule::PlayoutDevices() {
+  return 0;
+}
+
+int16_t ObjCAudioDeviceModule::RecordingDevices() {
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::PlayoutDeviceName(uint16_t index,
+                                                 char name[kAdmMaxDeviceNameSize],
+                                                 char guid[kAdmMaxGuidSize]) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::RecordingDeviceName(uint16_t index,
+                                                   char name[kAdmMaxDeviceNameSize],
+                                                   char guid[kAdmMaxGuidSize]) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::SetPlayoutDevice(uint16_t index) {
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetPlayoutDevice(WindowsDeviceType device) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::SetRecordingDevice(uint16_t index) {
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetRecordingDevice(WindowsDeviceType device) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::InitSpeaker() {
+  return 0;
+}
+
+bool ObjCAudioDeviceModule::SpeakerIsInitialized() const {
+  return true;
+}
+
+int32_t ObjCAudioDeviceModule::InitMicrophone() {
+  return 0;
+}
+
+bool ObjCAudioDeviceModule::MicrophoneIsInitialized() const {
+  return true;
+}
+
+int32_t ObjCAudioDeviceModule::SpeakerVolumeIsAvailable(bool* available) {
+  *available = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetSpeakerVolume(uint32_t volume) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::SpeakerVolume(uint32_t* volume) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MaxSpeakerVolume(uint32_t* maxVolume) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MinSpeakerVolume(uint32_t* minVolume) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::SpeakerMuteIsAvailable(bool* available) {
+  *available = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetSpeakerMute(bool enable) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::SpeakerMute(bool* enabled) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MicrophoneMuteIsAvailable(bool* available) {
+  *available = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetMicrophoneMute(bool enable) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MicrophoneMute(bool* enabled) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MicrophoneVolumeIsAvailable(bool* available) {
+  *available = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetMicrophoneVolume(uint32_t volume) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MicrophoneVolume(uint32_t* volume) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MaxMicrophoneVolume(uint32_t* maxVolume) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::MinMicrophoneVolume(uint32_t* minVolume) const {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::StereoPlayoutIsAvailable(bool* available) const {
+  *available = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetStereoPlayout(bool enable) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::StereoPlayout(bool* enabled) const {
+  *enabled = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::StereoRecordingIsAvailable(bool* available) const {
+  *available = false;
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::SetStereoRecording(bool enable) {
+  return -1;
+}
+
+int32_t ObjCAudioDeviceModule::StereoRecording(bool* enabled) const {
+  *enabled = false;
+  return 0;
+}
+
+bool ObjCAudioDeviceModule::BuiltInAECIsAvailable() const {
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::EnableBuiltInAEC(bool enable) {
+  return 0;
+}
+
+bool ObjCAudioDeviceModule::BuiltInAGCIsAvailable() const {
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::EnableBuiltInAGC(bool enable) {
+  return 0;
+}
+
+bool ObjCAudioDeviceModule::BuiltInNSIsAvailable() const {
+  return false;
+}
+
+int32_t ObjCAudioDeviceModule::EnableBuiltInNS(bool enable) {
+  return 0;
+}
+
+int32_t ObjCAudioDeviceModule::GetPlayoutUnderrunCount() const {
+  return -1;
+}
+
+}  // namespace objc_adm
+
+}  // namespace webrtc
\ No newline at end of file