IOS/USB: Emulate Wii Speak (OpenAL)

Credits to @degasus and @shuffle2 (godisgovernment):
https://github.com/degasus/dolphin/tree/wiispeak

Source/Core/Core/CMakeLists.txt

@@ -429,12 +429,16 @@ add_library(core
   IOS/USB/Common.h
   IOS/USB/Emulated/Infinity.cpp
   IOS/USB/Emulated/Infinity.h
+  IOS/USB/Emulated/Microphone.cpp
+  IOS/USB/Emulated/Microphone.h
   IOS/USB/Emulated/Skylanders/Skylander.cpp
   IOS/USB/Emulated/Skylanders/Skylander.h
   IOS/USB/Emulated/Skylanders/SkylanderCrypto.cpp
   IOS/USB/Emulated/Skylanders/SkylanderCrypto.h
   IOS/USB/Emulated/Skylanders/SkylanderFigure.cpp
   IOS/USB/Emulated/Skylanders/SkylanderFigure.h
+  IOS/USB/Emulated/WiiSpeak.cpp
+  IOS/USB/Emulated/WiiSpeak.h
   IOS/USB/Host.cpp
   IOS/USB/Host.h
   IOS/USB/OH0/OH0.cpp

Source/Core/Core/Config/MainSettings.cpp

@@ -594,6 +594,12 @@ const Info<bool> MAIN_EMULATE_SKYLANDER_PORTAL{
 const Info<bool> MAIN_EMULATE_INFINITY_BASE{
     {System::Main, "EmulatedUSBDevices", "EmulateInfinityBase"}, false};
 
+const Info<bool> MAIN_EMULATE_WII_SPEAK{{System::Main, "EmulatedUSBDevices", "EmulateWiiSpeak"},
+                                        false};
+
+const Info<std::string> MAIN_WII_SPEAK_MICROPHONE{{System::Main, "General", "WiiSpeakMicrophone"},
+                                                  ""};
+
 // The reason we need this function is because some memory card code
 // expects to get a non-NTSC-K region even if we're emulating an NTSC-K Wii.
 DiscIO::Region ToGameCubeRegion(DiscIO::Region region)

Source/Core/Core/Config/MainSettings.h

@@ -362,6 +362,8 @@ void SetUSBDeviceWhitelist(const std::set<std::pair<u16, u16>>& devices);
 
 extern const Info<bool> MAIN_EMULATE_SKYLANDER_PORTAL;
 extern const Info<bool> MAIN_EMULATE_INFINITY_BASE;
+extern const Info<bool> MAIN_EMULATE_WII_SPEAK;
+extern const Info<std::string> MAIN_WII_SPEAK_MICROPHONE;
 
 // GameCube path utility functions
 

Source/Core/Core/IOS/USB/Emulated/Microphone.cpp

@@ -0,0 +1,91 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "Core/IOS/USB/Emulated/Microphone.h"
+
+#include "Common/Swap.h"
+
+#include <algorithm>
+
+namespace IOS::HLE::USB
+{
+std::vector<std::string> Microphone::ListDevices()
+{
+  std::vector<std::string> devices{};
+  const ALchar* pDeviceList = alcGetString(nullptr, ALC_CAPTURE_DEVICE_SPECIFIER);
+  while (*pDeviceList)
+  {
+    devices.emplace_back(pDeviceList);
+    pDeviceList += strlen(pDeviceList) + 1;
+  }
+
+  return devices;
+}
+
+int Microphone::OpenMicrophone()
+{
+  m_device = alcCaptureOpenDevice(nullptr, SAMPLING_RATE, AL_FORMAT_MONO16, BUFFER_SIZE);
+  m_dsp_data.resize(BUFFER_SIZE, 0);
+  m_temp_buffer.resize(BUFFER_SIZE, 0);
+  return static_cast<int>(alcGetError(m_device));
+}
+
+int Microphone::StartCapture()
+{
+  alcCaptureStart(m_device);
+  return static_cast<int>(alcGetError(m_device));
+}
+
+void Microphone::StopCapture()
+{
+  alcCaptureStop(m_device);
+}
+
+void Microphone::PerformAudioCapture()
+{
+  m_num_of_samples = BUFFER_SIZE / 2;
+
+  ALCint samples_in{};
+  alcGetIntegerv(m_device, ALC_CAPTURE_SAMPLES, 1, &samples_in);
+  m_num_of_samples = std::min(m_num_of_samples, static_cast<u32>(samples_in));
+
+  if (m_num_of_samples == 0)
+    return;
+
+  alcCaptureSamples(m_device, m_dsp_data.data(), m_num_of_samples);
+}
+
+void Microphone::ByteSwap(const void* src, void* dst) const
+{
+  *static_cast<u16*>(dst) = Common::swap16(*static_cast<const u16*>(src));
+}
+
+void Microphone::GetSoundData()
+{
+  if (m_num_of_samples == 0)
+    return;
+
+  u8* ptr = const_cast<u8*>(m_temp_buffer.data());
+  // Convert LE to BE
+  for (u32 i = 0; i < m_num_of_samples; i++)
+  {
+    for (u32 indchan = 0; indchan < 1; indchan++)
+    {
+      const u32 curindex = (i * 2) + indchan * (16 / 8);
+      ByteSwap(m_dsp_data.data() + curindex, ptr + curindex);
+    }
+  }
+
+  m_rbuf_dsp.write_bytes(ptr, m_num_of_samples * 2);
+}
+
+void Microphone::ReadIntoBuffer(u8* dst, u32 size)
+{
+  m_rbuf_dsp.read_bytes(dst, size);
+}
+
+bool Microphone::HasData() const
+{
+  return m_num_of_samples != 0;
+}
+}  // namespace IOS::HLE::USB

Source/Core/Core/IOS/USB/Emulated/Microphone.h

@@ -0,0 +1,113 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <OpenAL/al.h>
+#include <OpenAL/alc.h>
+
+#include <string>
+#include <vector>
+
+#include "Common/CommonTypes.h"
+
+namespace IOS::HLE::USB
+{
+template <size_t S>
+class simple_ringbuf
+{
+public:
+  simple_ringbuf() { m_container.resize(S); }
+
+  bool has_data() const { return m_used != 0; }
+
+  u32 read_bytes(u8* buf, const u32 size)
+  {
+    u32 to_read = size > m_used ? m_used : size;
+    if (!to_read)
+      return 0;
+
+    u8* data = m_container.data();
+    u32 new_tail = m_tail + to_read;
+
+    if (new_tail >= S)
+    {
+      u32 first_chunk_size = S - m_tail;
+      std::memcpy(buf, data + m_tail, first_chunk_size);
+      std::memcpy(buf + first_chunk_size, data, to_read - first_chunk_size);
+      m_tail = (new_tail - S);
+    }
+    else
+    {
+      std::memcpy(buf, data + m_tail, to_read);
+      m_tail = new_tail;
+    }
+
+    m_used -= to_read;
+
+    return to_read;
+  }
+
+  void write_bytes(const u8* buf, const u32 size)
+  {
+    if (u32 over_size = m_used + size; over_size > S)
+    {
+      m_tail += (over_size - S);
+      if (m_tail > S)
+        m_tail -= S;
+
+      m_used = S;
+    }
+    else
+    {
+      m_used = over_size;
+    }
+
+    u8* data = m_container.data();
+    u32 new_head = m_head + size;
+
+    if (new_head >= S)
+    {
+      u32 first_chunk_size = S - m_head;
+      std::memcpy(data + m_head, buf, first_chunk_size);
+      std::memcpy(data, buf + first_chunk_size, size - first_chunk_size);
+      m_head = (new_head - S);
+    }
+    else
+    {
+      std::memcpy(data + m_head, buf, size);
+      m_head = new_head;
+    }
+  }
+
+protected:
+  std::vector<u8> m_container;
+  u32 m_head = 0, m_tail = 0, m_used = 0;
+};
+
+class Microphone final
+{
+public:
+  static std::vector<std::string> ListDevices();
+
+  int OpenMicrophone();
+  int StartCapture();
+  void StopCapture();
+  void PerformAudioCapture();
+  void GetSoundData();
+  void ReadIntoBuffer(u8* dst, u32 size);
+  bool HasData() const;
+
+private:
+  void ByteSwap(const void* src, void* dst) const;
+
+  static constexpr u32 SAMPLING_RATE = 8000;
+  static constexpr u32 BUFFER_SIZE = SAMPLING_RATE / 2;
+
+  ALCdevice* m_device;
+  u32 m_num_of_samples{};
+  std::vector<u8> m_dsp_data{};
+  std::vector<u8> m_temp_buffer{};
+  simple_ringbuf<BUFFER_SIZE> m_rbuf_dsp;
+};
+}  // namespace IOS::HLE::USB

Source/Core/Core/IOS/USB/Emulated/WiiSpeak.cpp

@@ -0,0 +1,374 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "Core/IOS/USB/Emulated/WiiSpeak.h"
+
+#include "Core/HW/Memmap.h"
+#include "Core/System.h"
+
+namespace IOS::HLE::USB
+{
+WiiSpeak::WiiSpeak()
+{
+  m_vid = 0x57E;
+  m_pid = 0x0308;
+  m_id = (u64(m_vid) << 32 | u64(m_pid) << 16 | u64(9) << 8 | u64(1));
+  m_device_descriptor =
+      DeviceDescriptor{0x12, 0x1, 0x200, 0, 0, 0, 0x10, 0x57E, 0x0308, 0x0214, 0x1, 0x2, 0x0, 0x1};
+  m_config_descriptor.emplace_back(ConfigDescriptor{0x9, 0x2, 0x0030, 0x1, 0x1, 0x0, 0x80, 0x32});
+  m_interface_descriptor.emplace_back(
+      InterfaceDescriptor{0x9, 0x4, 0x0, 0x0, 0x0, 0xFF, 0xFF, 0xFF, 0x0});
+  m_interface_descriptor.emplace_back(
+      InterfaceDescriptor{0x9, 0x4, 0x0, 0x01, 0x03, 0xFF, 0xFF, 0xFF, 0x0});
+  m_endpoint_descriptor.emplace_back(EndpointDescriptor{0x7, 0x5, 0x81, 0x1, 0x0020, 0x1});
+  m_endpoint_descriptor.emplace_back(EndpointDescriptor{0x7, 0x5, 0x2, 0x2, 0x0020, 0});
+  m_endpoint_descriptor.emplace_back(EndpointDescriptor{0x7, 0x5, 0x3, 0x1, 0x0040, 1});
+
+  m_microphone = Microphone();
+  if (m_microphone.OpenMicrophone() != 0)
+  {
+    ERROR_LOG_FMT(IOS_USB, "Error opening the microphone.");
+    b_is_mic_connected = false;
+    return;
+  }
+
+  if (m_microphone.StartCapture() != 0)
+  {
+    ERROR_LOG_FMT(IOS_USB, "Error starting captures.");
+    b_is_mic_connected = false;
+    return;
+  }
+
+  m_microphone_thread = std::thread([this] {
+    u64 timeout{};
+    constexpr u64 TIMESTEP = 256ull * 1'000'000ull / 48000ull;
+    while (true)
+    {
+      if (m_shutdown_event.WaitFor(std::chrono::microseconds{timeout}))
+        return;
+
+      std::lock_guard lg(m_mutex);
+      timeout = TIMESTEP - (std::chrono::duration_cast<std::chrono::microseconds>(
+                                std::chrono::steady_clock::now().time_since_epoch())
+                                .count() %
+                            TIMESTEP);
+      m_microphone.PerformAudioCapture();
+      m_microphone.GetSoundData();
+    }
+  });
+}
+
+WiiSpeak::~WiiSpeak()
+{
+  {
+    std::lock_guard lg(m_mutex);
+    if (!m_microphone_thread.joinable())
+      return;
+
+    m_shutdown_event.Set();
+  }
+
+  m_microphone_thread.join();
+  m_microphone.StopCapture();
+}
+
+DeviceDescriptor WiiSpeak::GetDeviceDescriptor() const
+{
+  return m_device_descriptor;
+}
+
+std::vector<ConfigDescriptor> WiiSpeak::GetConfigurations() const
+{
+  return m_config_descriptor;
+}
+
+std::vector<InterfaceDescriptor> WiiSpeak::GetInterfaces(u8 config) const
+{
+  return m_interface_descriptor;
+}
+
+std::vector<EndpointDescriptor> WiiSpeak::GetEndpoints(u8 config, u8 interface, u8 alt) const
+{
+  return m_endpoint_descriptor;
+}
+
+bool WiiSpeak::Attach()
+{
+  if (m_device_attached)
+    return true;
+
+  DEBUG_LOG_FMT(IOS_USB, "[{:04x}:{:04x}] Opening device", m_vid, m_pid);
+  m_device_attached = true;
+  return true;
+}
+
+bool WiiSpeak::AttachAndChangeInterface(const u8 interface)
+{
+  if (!Attach())
+    return false;
+
+  if (interface != m_active_interface)
+    return ChangeInterface(interface) == 0;
+
+  return true;
+}
+
+int WiiSpeak::CancelTransfer(const u8 endpoint)
+{
+  INFO_LOG_FMT(IOS_USB, "[{:04x}:{:04x} {}] Cancelling transfers (endpoint {:#x})", m_vid, m_pid,
+               m_active_interface, endpoint);
+
+  return IPC_SUCCESS;
+}
+
+int WiiSpeak::ChangeInterface(const u8 interface)
+{
+  DEBUG_LOG_FMT(IOS_USB, "[{:04x}:{:04x} {}] Changing interface to {}", m_vid, m_pid,
+                m_active_interface, interface);
+  m_active_interface = interface;
+  return 0;
+}
+
+int WiiSpeak::GetNumberOfAltSettings(u8 interface)
+{
+  return 0;
+}
+
+int WiiSpeak::SetAltSetting(u8 alt_setting)
+{
+  return 0;
+}
+
+int WiiSpeak::SubmitTransfer(std::unique_ptr<CtrlMessage> cmd)
+{
+  DEBUG_LOG_FMT(IOS_USB,
+                "[{:04x}:{:04x} {}] Control: bRequestType={:02x} bRequest={:02x} wValue={:04x}"
+                " wIndex={:04x} wLength={:04x}",
+                m_vid, m_pid, m_active_interface, cmd->request_type, cmd->request, cmd->value,
+                cmd->index, cmd->length);
+
+  if (!b_is_mic_connected)
+    return IPC_ENOENT;
+
+  switch (cmd->request_type << 8 | cmd->request)
+  {
+  case USBHDR(DIR_DEVICE2HOST, TYPE_STANDARD, REC_INTERFACE, REQUEST_GET_INTERFACE):
+  {
+    constexpr std::array<u8, 1> data{1};
+    cmd->FillBuffer(data.data(), 1);
+    cmd->ScheduleTransferCompletion(1, 100);
+    break;
+  }
+  case USBHDR(DIR_HOST2DEVICE, TYPE_VENDOR, REC_INTERFACE, 0):
+  {
+    init = false;
+    cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+    break;
+  }
+  case USBHDR(DIR_DEVICE2HOST, TYPE_VENDOR, REC_INTERFACE, REQUEST_GET_DESCRIPTOR):
+  {
+    if (!init)
+    {
+      constexpr std::array<u8, 1> data{0};
+      cmd->FillBuffer(data.data(), 1);
+      cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+      init = true;
+    }
+    else
+    {
+      constexpr std::array<u8, 1> data{1};
+      cmd->FillBuffer(data.data(), 1);
+      cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+    }
+    break;
+  }
+  case USBHDR(DIR_HOST2DEVICE, TYPE_VENDOR, REC_INTERFACE, 1):
+    SetRegister(cmd);
+    cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+    break;
+  case USBHDR(DIR_DEVICE2HOST, TYPE_VENDOR, REC_INTERFACE, 2):
+    GetRegister(cmd);
+    cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+    break;
+  default:
+    NOTICE_LOG_FMT(IOS_USB, "Unknown command");
+    cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+  }
+
+  return IPC_SUCCESS;
+}
+
+int WiiSpeak::SubmitTransfer(std::unique_ptr<BulkMessage> cmd)
+{
+  cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+  return IPC_SUCCESS;
+}
+
+int WiiSpeak::SubmitTransfer(std::unique_ptr<IntrMessage> cmd)
+{
+  cmd->GetEmulationKernel().EnqueueIPCReply(cmd->ios_request, IPC_SUCCESS);
+  return IPC_SUCCESS;
+}
+
+int WiiSpeak::SubmitTransfer(std::unique_ptr<IsoMessage> cmd)
+{
+  if (!b_is_mic_connected)
+    return IPC_ENOENT;
+
+  auto& system = cmd->GetEmulationKernel().GetSystem();
+  auto& memory = system.GetMemory();
+
+  u8* packets = memory.GetPointerForRange(cmd->data_address, cmd->length);
+  if (packets == nullptr)
+  {
+    ERROR_LOG_FMT(IOS_USB, "Wii Speak command invalid");
+    return IPC_EINVAL;
+  }
+
+  if (cmd->endpoint == 0x81 && m_microphone.HasData())
+    m_microphone.ReadIntoBuffer(packets, cmd->length);
+
+  // Anything more causes the visual cue to not appear.
+  // Anything less is more choppy audio.
+  cmd->ScheduleTransferCompletion(IPC_SUCCESS, 20000);
+  return IPC_SUCCESS;
+};
+
+void WiiSpeak::SetRegister(std::unique_ptr<CtrlMessage>& cmd)
+{
+  auto& system = cmd->GetEmulationKernel().GetSystem();
+  auto& memory = system.GetMemory();
+  const u8 reg = memory.Read_U8(cmd->data_address + 1) & ~1;
+  const u16 arg1 = memory.Read_U16(cmd->data_address + 2);
+  const u16 arg2 = memory.Read_U16(cmd->data_address + 4);
+
+  switch (reg)
+  {
+  case SAMPLER_STATE:
+    sampler.sample_on = !!arg1;
+    break;
+  case SAMPLER_FREQ:
+    switch (arg1)
+    {
+    case FREQ_8KHZ:
+      sampler.freq = 8000;
+      break;
+    case FREQ_11KHZ:
+      sampler.freq = 11025;
+      break;
+    case FREQ_RESERVED:
+    case FREQ_16KHZ:
+    default:
+      sampler.freq = 16000;
+      break;
+    }
+    break;
+  case SAMPLER_GAIN:
+    switch (arg1 & ~0x300)
+    {
+    case GAIN_00dB:
+      sampler.gain = 0;
+      break;
+    case GAIN_15dB:
+      sampler.gain = 15;
+      break;
+    case GAIN_30dB:
+      sampler.gain = 30;
+      break;
+    case GAIN_36dB:
+    default:
+      sampler.gain = 36;
+      break;
+    }
+    break;
+  case EC_STATE:
+    sampler.ec_reset = !!arg1;
+    break;
+  case SP_STATE:
+    switch (arg1)
+    {
+    case SP_ENABLE:
+      sampler.sp_on = arg2 == 0;
+      break;
+    case SP_SIN:
+    case SP_SOUT:
+    case SP_RIN:
+      break;
+    }
+    break;
+  case SAMPLER_MUTE:
+    sampler.mute = !!arg1;
+    break;
+  }
+}
+
+void WiiSpeak::GetRegister(std::unique_ptr<CtrlMessage>& cmd)
+{
+  auto& system = cmd->GetEmulationKernel().GetSystem();
+  auto& memory = system.GetMemory();
+  const u8 reg = memory.Read_U8(cmd->data_address + 1) & ~1;
+  const u32 arg1 = cmd->data_address + 2;
+  const u32 arg2 = cmd->data_address + 4;
+
+  switch (reg)
+  {
+  case SAMPLER_STATE:
+    memory.Write_U16(sampler.sample_on ? 1 : 0, arg1);
+    break;
+  case SAMPLER_FREQ:
+    switch (sampler.freq)
+    {
+    case 8000:
+      memory.Write_U16(FREQ_8KHZ, arg1);
+      break;
+    case 11025:
+      memory.Write_U16(FREQ_11KHZ, arg1);
+      break;
+    case 16000:
+    default:
+      memory.Write_U16(FREQ_16KHZ, arg1);
+      break;
+    }
+    break;
+  case SAMPLER_GAIN:
+    switch (sampler.gain)
+    {
+    case 0:
+      memory.Write_U16(0x300 | GAIN_00dB, arg1);
+      break;
+    case 15:
+      memory.Write_U16(0x300 | GAIN_15dB, arg1);
+      break;
+    case 30:
+      memory.Write_U16(0x300 | GAIN_30dB, arg1);
+      break;
+    case 36:
+    default:
+      memory.Write_U16(0x300 | GAIN_36dB, arg1);
+      break;
+    }
+    break;
+  case EC_STATE:
+    memory.Write_U16(sampler.ec_reset ? 1 : 0, arg1);
+    break;
+  case SP_STATE:
+    switch (memory.Read_U16(arg1))
+    {
+    case SP_ENABLE:
+      memory.Write_U16(1, arg2);
+      break;
+    case SP_SIN:
+      break;
+    case SP_SOUT:
+      memory.Write_U16(0x39B0, arg2);  // 6dB
+      break;
+    case SP_RIN:
+      break;
+    }
+    break;
+  case SAMPLER_MUTE:
+    memory.Write_U16(sampler.mute ? 1 : 0, arg1);
+    break;
+  }
+}
+}  // namespace IOS::HLE::USB

Source/Core/Core/IOS/USB/Emulated/WiiSpeak.h

@@ -0,0 +1,95 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+#include "Common/CommonTypes.h"
+#include "Common/Event.h"
+#include "Core/IOS/USB/Common.h"
+#include "Core/IOS/USB/Emulated/Microphone.h"
+
+namespace IOS::HLE::USB
+{
+class WiiSpeak final : public Device
+{
+public:
+  WiiSpeak();
+  ~WiiSpeak();
+  DeviceDescriptor GetDeviceDescriptor() const override;
+  std::vector<ConfigDescriptor> GetConfigurations() const override;
+  std::vector<InterfaceDescriptor> GetInterfaces(u8 config) const override;
+  std::vector<EndpointDescriptor> GetEndpoints(u8 config, u8 interface, u8 alt) const override;
+  bool Attach() override;
+  bool AttachAndChangeInterface(u8 interface) override;
+  int CancelTransfer(u8 endpoint) override;
+  int ChangeInterface(u8 interface) override;
+  int GetNumberOfAltSettings(u8 interface) override;
+  int SetAltSetting(u8 alt_setting) override;
+  int SubmitTransfer(std::unique_ptr<CtrlMessage> message) override;
+  int SubmitTransfer(std::unique_ptr<BulkMessage> message) override;
+  int SubmitTransfer(std::unique_ptr<IntrMessage> message) override;
+  int SubmitTransfer(std::unique_ptr<IsoMessage> message) override;
+
+private:
+  struct WSState
+  {
+    bool sample_on;
+    bool mute;
+    int freq;
+    int gain;
+    bool ec_reset;
+    bool sp_on;
+  };
+
+  WSState sampler{};
+
+  enum Registers
+  {
+    SAMPLER_STATE = 0,
+    SAMPLER_MUTE = 0xc0,
+
+    SAMPLER_FREQ = 2,
+    FREQ_8KHZ = 0,
+    FREQ_11KHZ = 1,
+    FREQ_RESERVED = 2,
+    FREQ_16KHZ = 3,  // default
+
+    SAMPLER_GAIN = 4,
+    GAIN_00dB = 0,
+    GAIN_15dB = 1,
+    GAIN_30dB = 2,
+    GAIN_36dB = 3,  // default
+
+    EC_STATE = 0x14,
+
+    SP_STATE = 0x38,
+    SP_ENABLE = 0x1010,
+    SP_SIN = 0x2001,
+    SP_SOUT = 0x2004,
+    SP_RIN = 0x200d
+  };
+
+  void GetRegister(std::unique_ptr<CtrlMessage>& cmd);
+  void SetRegister(std::unique_ptr<CtrlMessage>& cmd);
+
+  u16 m_vid = 0;
+  u16 m_pid = 0;
+  u8 m_active_interface = 0;
+  bool m_device_attached = false;
+  bool init = false;
+  bool b_is_mic_connected = true;
+  Microphone m_microphone;
+  DeviceDescriptor m_device_descriptor{};
+  std::vector<ConfigDescriptor> m_config_descriptor;
+  std::vector<InterfaceDescriptor> m_interface_descriptor;
+  std::vector<EndpointDescriptor> m_endpoint_descriptor;
+  std::thread m_microphone_thread;
+  std::mutex m_mutex;
+  Common::Event m_shutdown_event;
+};
+}  // namespace IOS::HLE::USB

Source/Core/Core/IOS/USB/USBScanner.cpp

@@ -23,6 +23,7 @@
 #include "Core/IOS/USB/Common.h"
 #include "Core/IOS/USB/Emulated/Infinity.h"
 #include "Core/IOS/USB/Emulated/Skylanders/Skylander.h"
+#include "Core/IOS/USB/Emulated/WiiSpeak.h"
 #include "Core/IOS/USB/Host.h"
 #include "Core/IOS/USB/LibusbDevice.h"
 #include "Core/NetPlayProto.h"
@@ -177,6 +178,9 @@ void USBScanner::AddEmulatedDevices(DeviceMap* new_devices)
     auto infinity_base = std::make_unique<USB::InfinityUSB>();
     AddDevice(std::move(infinity_base), new_devices);
   }
+
+  auto wii_speak = std::make_unique<USB::WiiSpeak>();
+  AddDevice(std::move(wii_speak), new_devices);
 }
 
 void USBScanner::AddDevice(std::unique_ptr<USB::Device> device, DeviceMap* new_devices)

Source/Core/DolphinLib.props

@@ -404,9 +404,11 @@
     <ClInclude Include="Core\IOS\USB\Bluetooth\WiimoteHIDAttr.h" />
     <ClInclude Include="Core\IOS\USB\Common.h" />
     <ClInclude Include="Core\IOS\USB\Emulated\Infinity.h" />
+    <ClInclude Include="Core\IOS\USB\Emulated\Microphone.h" />
     <ClInclude Include="Core\IOS\USB\Emulated\Skylanders\Skylander.h" />
     <ClInclude Include="Core\IOS\USB\Emulated\Skylanders\SkylanderCrypto.h" />
     <ClInclude Include="Core\IOS\USB\Emulated\Skylanders\SkylanderFigure.h" />
+    <ClInclude Include="Core\IOS\USB\Emulated\WiiSpeak.h" />
     <ClInclude Include="Core\IOS\USB\Host.h" />
     <ClInclude Include="Core\IOS\USB\LibusbDevice.h" />
     <ClInclude Include="Core\IOS\USB\OH0\OH0.h" />
@@ -1069,9 +1071,11 @@
     <ClCompile Include="Core\IOS\USB\Bluetooth\WiimoteHIDAttr.cpp" />
     <ClCompile Include="Core\IOS\USB\Common.cpp" />
     <ClCompile Include="Core\IOS\USB\Emulated\Infinity.cpp" />
+    <ClCompile Include="Core\IOS\USB\Emulated\Microphone.cpp" />
     <ClCompile Include="Core\IOS\USB\Emulated\Skylanders\Skylander.cpp" />
     <ClCompile Include="Core\IOS\USB\Emulated\Skylanders\SkylanderCrypto.cpp" />
     <ClCompile Include="Core\IOS\USB\Emulated\Skylanders\SkylanderFigure.cpp" />
+    <ClCompile Include="Core\IOS\USB\Emulated\WiiSpeak.cpp" />
     <ClCompile Include="Core\IOS\USB\Host.cpp" />
     <ClCompile Include="Core\IOS\USB\LibusbDevice.cpp" />
     <ClCompile Include="Core\IOS\USB\OH0\OH0.cpp" />

Source/Core/DolphinQt/CMakeLists.txt

@@ -247,6 +247,8 @@ add_executable(dolphin-emu
   DiscordHandler.h
   DiscordJoinRequestDialog.cpp
   DiscordJoinRequestDialog.h
+  EmulatedUSB/WiiSpeakWindow.cpp
+  EmulatedUSB/WiiSpeakWindow.h
   FIFO/FIFOAnalyzer.cpp
   FIFO/FIFOAnalyzer.h
   FIFO/FIFOPlayerWindow.cpp

Source/Core/DolphinQt/DolphinQt.vcxproj

@@ -157,6 +157,7 @@
     <ClCompile Include="Debugger\WatchWidget.cpp" />
     <ClCompile Include="DiscordHandler.cpp" />
     <ClCompile Include="DiscordJoinRequestDialog.cpp" />
+    <ClCompile Include="EmulatedUSB\WiiSpeakWindow.cpp" />
     <ClCompile Include="FIFO\FIFOAnalyzer.cpp" />
     <ClCompile Include="FIFO\FIFOPlayerWindow.cpp" />
     <ClCompile Include="GameList\GameList.cpp" />
@@ -374,6 +375,7 @@
     <QtMoc Include="Debugger\WatchWidget.h" />
     <QtMoc Include="DiscordHandler.h" />
     <QtMoc Include="DiscordJoinRequestDialog.h" />
+    <QtMoc Include="EmulatedUSB\WiiSpeakWindow.h" />
     <QtMoc Include="FIFO\FIFOAnalyzer.h" />
     <QtMoc Include="FIFO\FIFOPlayerWindow.h" />
     <QtMoc Include="GameList\GameList.h" />

Source/Core/DolphinQt/EmulatedUSB/WiiSpeakWindow.cpp

@@ -0,0 +1,84 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "DolphinQt/EmulatedUSB/WiiSpeakWindow.h"
+
+#include <string>
+
+#include <QCheckBox>
+#include <QComboBox>
+#include <QCompleter>
+#include <QDialogButtonBox>
+#include <QGroupBox>
+#include <QLabel>
+#include <QLineEdit>
+#include <QMessageBox>
+#include <QPushButton>
+#include <QScrollArea>
+#include <QString>
+#include <QVBoxLayout>
+
+#include "Common/IOFile.h"
+
+#include "Core/Config/MainSettings.h"
+#include "Core/Core.h"
+#include "Core/IOS/USB/Emulated/Microphone.h"
+#include "Core/System.h"
+
+#include "DolphinQt/QtUtils/DolphinFileDialog.h"
+#include "DolphinQt/Settings.h"
+
+WiiSpeakWindow::WiiSpeakWindow(QWidget* parent) : QWidget(parent)
+{
+  setWindowTitle(tr("Wii Speak Manager"));
+  setObjectName(QStringLiteral("wii_speak_manager"));
+  setMinimumSize(QSize(700, 200));
+
+  CreateMainWindow();
+
+  connect(&Settings::Instance(), &Settings::EmulationStateChanged, this,
+          &WiiSpeakWindow::OnEmulationStateChanged);
+
+  installEventFilter(this);
+
+  OnEmulationStateChanged(Core::GetState(Core::System::GetInstance()));
+};
+
+WiiSpeakWindow::~WiiSpeakWindow() = default;
+
+void WiiSpeakWindow::CreateMainWindow()
+{
+  auto* main_layout = new QVBoxLayout();
+
+  auto* checkbox_group = new QGroupBox();
+  auto* checkbox_layout = new QHBoxLayout();
+  checkbox_layout->setAlignment(Qt::AlignLeft);
+  m_checkbox = new QCheckBox(tr("Emulate Wii Speak"), this);
+  m_checkbox->setChecked(Config::Get(Config::MAIN_EMULATE_WII_SPEAK));
+  connect(m_checkbox, &QCheckBox::toggled, this, &WiiSpeakWindow::EmulateWiiSpeak);
+  checkbox_layout->addWidget(m_checkbox);
+  checkbox_group->setLayout(checkbox_layout);
+
+  m_combobox_microphones = new QComboBox();
+  for (const std::string& device : IOS::HLE::USB::Microphone::ListDevices())
+  {
+    m_combobox_microphones->addItem(QString::fromStdString(device));
+  }
+
+  checkbox_layout->addWidget(m_combobox_microphones);
+
+  main_layout->addWidget(checkbox_group);
+  setLayout(main_layout);
+}
+
+void WiiSpeakWindow::EmulateWiiSpeak(bool emulate)
+{
+  Config::SetBaseOrCurrent(Config::MAIN_EMULATE_WII_SPEAK, emulate);
+}
+
+void WiiSpeakWindow::OnEmulationStateChanged(Core::State state)
+{
+  const bool running = state != Core::State::Uninitialized;
+
+  m_checkbox->setEnabled(!running);
+}

Source/Core/DolphinQt/EmulatedUSB/WiiSpeakWindow.h

@@ -0,0 +1,27 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QWidget>
+
+#include "Core/Core.h"
+
+class QCheckBox;
+class QComboBox;
+
+class WiiSpeakWindow : public QWidget
+{
+  Q_OBJECT
+public:
+  explicit WiiSpeakWindow(QWidget* parent = nullptr);
+  ~WiiSpeakWindow() override;
+
+private:
+  void CreateMainWindow();
+  void OnEmulationStateChanged(Core::State state);
+  void EmulateWiiSpeak(bool emulate);
+
+  QCheckBox* m_checkbox;
+  QComboBox* m_combobox_microphones;
+};

Source/Core/DolphinQt/MainWindow.cpp

@@ -94,6 +94,7 @@
 #include "DolphinQt/Debugger/ThreadWidget.h"
 #include "DolphinQt/Debugger/WatchWidget.h"
 #include "DolphinQt/DiscordHandler.h"
+#include "DolphinQt/EmulatedUSB/WiiSpeakWindow.h"
 #include "DolphinQt/FIFO/FIFOPlayerWindow.h"
 #include "DolphinQt/GCMemcardManager.h"
 #include "DolphinQt/GameList/GameList.h"
@@ -579,6 +580,7 @@ void MainWindow::ConnectMenuBar()
   connect(m_menu_bar, &MenuBar::ShowFIFOPlayer, this, &MainWindow::ShowFIFOPlayer);
   connect(m_menu_bar, &MenuBar::ShowSkylanderPortal, this, &MainWindow::ShowSkylanderPortal);
   connect(m_menu_bar, &MenuBar::ShowInfinityBase, this, &MainWindow::ShowInfinityBase);
+  connect(m_menu_bar, &MenuBar::ShowWiiSpeakWindow, this, &MainWindow::ShowWiiSpeakWindow);
   connect(m_menu_bar, &MenuBar::ConnectWiiRemote, this, &MainWindow::OnConnectWiiRemote);
 
 #ifdef USE_RETRO_ACHIEVEMENTS
@@ -1438,6 +1440,18 @@ void MainWindow::ShowInfinityBase()
   m_infinity_window->activateWindow();
 }
 
+void MainWindow::ShowWiiSpeakWindow()
+{
+  if (!m_wii_speak_window)
+  {
+    m_wii_speak_window = new WiiSpeakWindow();
+  }
+
+  m_wii_speak_window->show();
+  m_wii_speak_window->raise();
+  m_wii_speak_window->activateWindow();
+}
+
 void MainWindow::StateLoad()
 {
   QString dialog_path = (Config::Get(Config::MAIN_CURRENT_STATE_PATH).empty()) ?

Source/Core/DolphinQt/MainWindow.h

@@ -52,6 +52,7 @@ class ThreadWidget;
 class ToolBar;
 class WatchWidget;
 class WiiTASInputWindow;
+class WiiSpeakWindow;
 struct WindowSystemInfo;
 
 namespace Core
@@ -173,6 +174,7 @@ private:
   void ShowFIFOPlayer();
   void ShowSkylanderPortal();
   void ShowInfinityBase();
+  void ShowWiiSpeakWindow();
   void ShowMemcardManager();
   void ShowResourcePackManager();
   void ShowCheatsManager();
@@ -246,6 +248,7 @@ private:
   FIFOPlayerWindow* m_fifo_window = nullptr;
   SkylanderPortalWindow* m_skylander_window = nullptr;
   InfinityBaseWindow* m_infinity_window = nullptr;
+  WiiSpeakWindow* m_wii_speak_window = nullptr;
   MappingWindow* m_hotkey_window = nullptr;
   FreeLookWindow* m_freelook_window = nullptr;
 

Source/Core/DolphinQt/MenuBar.cpp

@@ -279,6 +279,7 @@ void MenuBar::AddToolsMenu()
   auto* usb_device_menu = new QMenu(tr("Emulated USB Devices"), tools_menu);
   usb_device_menu->addAction(tr("&Skylanders Portal"), this, &MenuBar::ShowSkylanderPortal);
   usb_device_menu->addAction(tr("&Infinity Base"), this, &MenuBar::ShowInfinityBase);
+  usb_device_menu->addAction(tr("&Wii Speak"), this, &MenuBar::ShowWiiSpeakWindow);
   tools_menu->addMenu(usb_device_menu);
 
   tools_menu->addSeparator();

Source/Core/DolphinQt/MenuBar.h

@@ -94,6 +94,7 @@ signals:
   void ShowResourcePackManager();
   void ShowSkylanderPortal();
   void ShowInfinityBase();
+  void ShowWiiSpeakWindow();
   void ConnectWiiRemote(int id);
 
 #ifdef USE_RETRO_ACHIEVEMENTS