diff --git a/src/Core/Inc/GLCore.h b/src/Core/Inc/GLCore.h
index 746b9c7..55a5504 100644
--- a/src/Core/Inc/GLCore.h
+++ b/src/Core/Inc/GLCore.h
@@ -5,6 +5,9 @@
 #if !defined(EMBEDDED_LINUX)
 #include "menu.h"
 #endif
+#ifdef EMBEDDED_LINUX
+#include <QPushButton>
+#endif
 
 #ifdef Q_OS_WIN
 #include <windows.h>
@@ -85,6 +88,9 @@ private:
 #if !defined(EMBEDDED_LINUX)
     Menu *contextMenu;              /// 使用 Menu 类
 #endif
+#ifdef EMBEDDED_LINUX
+    QPushButton *pttButton;         /// 嵌入式平台PTT按钮
+#endif
 
     bool isLeftPressed;             /// 鼠标左键是否按下
     bool isRightPressed;            /// 鼠标右键是否按下
diff --git a/src/Core/Src/AppCore.cpp b/src/Core/Src/AppCore.cpp
index 55f52f7..da6e6ba 100644
--- a/src/Core/Src/AppCore.cpp
+++ b/src/Core/Src/AppCore.cpp
@@ -8,8 +8,10 @@
 #include <QTimer>
 
 #include "AudioDataHandle.h"
+#if !defined(EMBEDDED_LINUX)
 #include "AutoAgentHandle.h"
 #include "ScreenShotReqDataHandle.h"
+#endif
 #include "DeviceDataHandle.h"
 
 #include "AudioInput.h"
@@ -88,13 +90,31 @@ AppCore::AppCore(QObject *parent) : QObject(parent)
 
     // 初始化业务解析单例
     AudioDataHandle::getInstance();
+#if !defined(EMBEDDED_LINUX)
     AutoAgentHandle::getInstance();
     ScreenShotReqDataHandle::getInstance();
+#endif
     // 注入发送接口
     NetworkDO::getInstance()->registerSender([](const QString& type, const QJsonObject& data){
         WebSocketClient::getInstance()->sendJson(type, data);
     });
-    // TODO Test
+#ifdef EMBEDDED_LINUX
+    // 嵌入式平台无Settings UI，需手动绑定WebSocket接收链路
+    connect(WebSocketClient::getInstance(), &WebSocketClient::jsonReceived,
+            NetworkDO::getInstance(), &NetworkDO::onDataReceived);
+    // 自动配置并连接服务端（优先读取环境变量 YOSUGA_SERVER_URL）
+    {
+        QString serverUrl = qEnvironmentVariable("YOSUGA_SERVER_URL", "ws://192.168.1.18:8765");
+        auto *client = WebSocketClient::getInstance();
+        client->setConfiguration(QUrl(serverUrl));
+        client->setAutoReconnect(true);
+        client->connectToServer();
+        qDebug() << "[AppCore] Embedded: connecting to server:" << serverUrl;
+    }
+#endif
+#ifdef EMBEDDED_LINUX
+    AudioInput::getInstance()->setAudioSettings(16000, 2);
+#endif
     AudioInput::getInstance()->setAudioPath(QDir::currentPath(), "/temp.wav");
     // 连接必要的信号
     connect(AudioInput::getInstance(), &AudioInput::recordingFinished_Byte,
@@ -114,8 +134,10 @@ AppCore::~AppCore()
     if (m_deviceTcpServer) m_deviceTcpServer->stop();
     if (m_deviceWsServer) m_deviceWsServer->stop();
 
+#if !defined(EMBEDDED_LINUX)
     ScreenShotReqDataHandle::destroy();
     AutoAgentHandle::destroy();
+#endif
     AudioDataHandle::destroy();
     DeviceDataHandle::destroy();
 
diff --git a/src/Core/Src/GLCore.cpp b/src/Core/Src/GLCore.cpp
index 86bbf31..810ba22 100644
--- a/src/Core/Src/GLCore.cpp
+++ b/src/Core/Src/GLCore.cpp
@@ -14,8 +14,11 @@
 #include <algorithm>
 
 #include "TextRenderer.h"
-// #include "AudioOutput.h"
 #include "AppContext.h"
+#ifdef EMBEDDED_LINUX
+#include "AppCore.h"
+#include <QIcon>
+#endif
 QMap<QString, double> GLCore::frameRateMap = {
     {"30", 30.0},
     {"60", 60.0},
@@ -87,6 +90,35 @@ GLCore::GLCore(const int width, const int height, QWidget *parent)
     connect(contextMenu, &Menu::closeMainWindow, this, &GLCore::closeGL);   // 关闭窗口信号
 #endif
 
+#ifdef EMBEDDED_LINUX
+    AppCore::getInstance();
+
+    pttButton = new QPushButton(this);
+    pttButton->setFixedSize(64, 64);
+    pttButton->move(width - 80, height - 80);
+    pttButton->setIcon(QIcon("Resources/Pic/Others/voice.png"));
+    pttButton->setIconSize(QSize(56, 56));
+    pttButton->setStyleSheet(
+        "QPushButton {"
+        "  background-color: rgba(255, 255, 255, 60);"
+        "  border-radius: 32px;"
+        "  border: none;"
+        "}"
+        "QPushButton:pressed {"
+        "  background-color: rgba(250, 80, 80, 150);"
+        "}"
+    );
+    pttButton->raise();
+    pttButton->show();
+
+    connect(pttButton, &QPushButton::pressed, this, []() {
+        AppCore::getInstance()->startPttRecording();
+    });
+    connect(pttButton, &QPushButton::released, this, []() {
+        AppCore::getInstance()->stopPttRecording();
+    });
+#endif
+
     // 注册当前实例到中介类
     AppContext::RegisterGLCore(this);
 }
diff --git a/src/Handle/AudioHandle/Inc/AudioInput.h b/src/Handle/AudioHandle/Inc/AudioInput.h
index b740328..cffe0a0 100644
--- a/src/Handle/AudioHandle/Inc/AudioInput.h
+++ b/src/Handle/AudioHandle/Inc/AudioInput.h
@@ -12,6 +12,9 @@
 #include <vector>
 #include <QScopedPointer>
 #include <QMutex>
+#ifdef EMBEDDED_LINUX
+#include <QProcess>
+#endif
 
 /**
  * @brief  录音模块
@@ -150,5 +153,8 @@ private:
     qreal m_smoothRms = 0.0;                /// 平滑RMS值(用于防止低频杂波突然打断静音检测)
 
     bool m_hasVoiceDetected = false;        /// 是否已检测到人声
+#ifdef EMBEDDED_LINUX
+    QProcess *m_arecordProcess = nullptr;   /// 嵌入式平台使用arecord录音
+#endif
 };
 
diff --git a/src/Handle/AudioHandle/Src/AudioInput.cpp b/src/Handle/AudioHandle/Src/AudioInput.cpp
index b4ee43e..7e9afed 100644
--- a/src/Handle/AudioHandle/Src/AudioInput.cpp
+++ b/src/Handle/AudioHandle/Src/AudioInput.cpp
@@ -53,7 +53,6 @@ void AudioInput::setAudioSettings(const int rate, const int channels)
 {
     m_format.setSampleRate(rate);
     m_format.setChannelCount(channels);
-    // 为了生成标准 WAV 且方便计算 RMS，强制设为 Int16
     m_format.setSampleFormat(QAudioFormat::Int16);
 
     // 检查设备是否支持该格式，不支持则使用最接近的
@@ -72,6 +71,30 @@ void AudioInput::setAudioPath(const QString &path, const QString &fileName)
 
 void AudioInput::startAudio()
 {
+#ifdef EMBEDDED_LINUX
+    m_rawPCMData.clear();
+    if (!m_arecordProcess) {
+        m_arecordProcess = new QProcess(this);
+        connect(m_arecordProcess, &QProcess::readyReadStandardOutput, this, [this]() {
+            m_rawPCMData.append(m_arecordProcess->readAllStandardOutput());
+        });
+    } else if (m_arecordProcess->state() != QProcess::NotRunning) {
+        m_arecordProcess->terminate();
+        m_arecordProcess->waitForFinished(1000);
+    }
+    m_arecordProcess->start("arecord", {
+        "-D", "hw:0,0", "-f", "S16_LE",
+        "-r", QString::number(m_format.sampleRate()),
+        "-c", QString::number(m_format.channelCount()),
+        "-t", "raw", "-q", "-"
+    });
+    if (m_arecordProcess->waitForStarted(1000)) {
+        qDebug() << "Started recording via arecord: hw:0,0"
+                 << m_format.sampleRate() << "Hz" << m_format.channelCount() << "ch S16_LE";
+    } else {
+        qCritical() << "Failed to start arecord";
+    }
+#else
     // 每次开始前重新创建 QAudioSource，确保状态重置
     if (m_audioSource) {
         delete m_audioSource;
@@ -79,8 +102,6 @@ void AudioInput::startAudio()
     }
 
     m_audioSource = new QAudioSource(m_currentDevice, m_format, this);
-
-    // 调大缓冲区以避免溢出
     m_audioSource->setBufferSize(128000);
 
     // start() 返回一个 QIODevice，可以从中读取数据
@@ -92,14 +113,21 @@ void AudioInput::startAudio()
     } else {
         qCritical() << "Failed to start audio recording.";
     }
+#endif
 }
 
 void AudioInput::stopAudio()
 {
+#ifdef EMBEDDED_LINUX
+    if (m_arecordProcess && m_arecordProcess->state() != QProcess::NotRunning) {
+        m_arecordProcess->terminate();
+        m_arecordProcess->waitForFinished(2000);
+    }
+#else
     if (m_audioSource) {
         m_audioSource->stop();
-        // 注意：不要立即 delete m_audioSource，某些情况下可能导致 crash，停止即可
     }
+#endif
 
     // 停止所有定时器
     m_timer->stop();
diff --git a/src/Handle/AudioHandle/Src/AudioOutput.cpp b/src/Handle/AudioHandle/Src/AudioOutput.cpp
index 99b0126..d485781 100644
--- a/src/Handle/AudioHandle/Src/AudioOutput.cpp
+++ b/src/Handle/AudioHandle/Src/AudioOutput.cpp
@@ -29,27 +29,24 @@ void StreamAudioWorker::start(int sampleRate, int channelCount, int bitDepth) {
 
     m_firstChunk = true;
 
-    // 配置音频格式
     QAudioFormat format;
     format.setSampleRate(sampleRate);
     format.setChannelCount(channelCount);
 
     if (bitDepth == 8) format.setSampleFormat(QAudioFormat::UInt8);
     else if (bitDepth == 16) format.setSampleFormat(QAudioFormat::Int16);
-    else if (bitDepth == 32) format.setSampleFormat(QAudioFormat::Float); // 32位通常为Float
-    else format.setSampleFormat(QAudioFormat::Int16); // 默认回退
+    else if (bitDepth == 32) format.setSampleFormat(QAudioFormat::Float);
+    else format.setSampleFormat(QAudioFormat::Int16);
 
-    // 检查设备是否支持
     auto device = QMediaDevices::defaultAudioOutput();
     if (!device.isFormatSupported(format)) {
         qWarning() << "[Worker] Device does not support format, using preferred format.";
         format = device.preferredFormat();
     }
 
-    // 创建 Sink (必须在 Worker 线程中创建)
     m_sink.reset(new QAudioSink(device, format));
+    m_sink->setBufferSize(sampleRate * channelCount * (bitDepth / 8));
 
-    // 监听状态
     connect(m_sink.data(), &QAudioSink::stateChanged, this, [this](QAudio::State state){
         if (state == QAudio::IdleState) {
             emit playbackFinished();
@@ -61,32 +58,34 @@ void StreamAudioWorker::start(int sampleRate, int channelCount, int bitDepth) {
         }
     });
 
-    // 启动，获取 IO 设备
     m_ioDevice = m_sink->start();
     if (!m_ioDevice) {
         emit errorOccurred("Failed to start audio device");
     } else {
-        qDebug() << "[Worker] Stream started:" << sampleRate << "Hz";
+        qDebug() << "[Worker] Stream started:" << sampleRate << "Hz, buffer:" << m_sink->bufferSize();
     }
 }
 
 void StreamAudioWorker::processChunk(const QByteArray& chunk) {
     if (chunk.isEmpty() || !m_ioDevice || !m_sink) return;
     QByteArray dataToWrite = chunk;
-    // 智能处理 WAV 头
     if (m_firstChunk) {
         if (hasWavHeader(chunk)) {
-            qDebug() << "[Worker] Detected WAV header, stripping 44 bytes.";
             dataToWrite = chunk.mid(44);
         }
         m_firstChunk = false;
     }
 
-    // 写入音频设备 (QAudioSink 内部有缓冲区，这里直接 write 即可)
-    // 如果数据量过大，write 可能会阻塞，但在独立线程中这是可以接受的
-    qint64 written = m_ioDevice->write(dataToWrite);
-    if (written != dataToWrite.size()) {
-        qWarning() << "[Worker] Incomplete write:" << written << "/" << dataToWrite.size();
+    const char *ptr = dataToWrite.constData();
+    qint64 remaining = dataToWrite.size();
+    while (remaining > 0) {
+        qint64 written = m_ioDevice->write(ptr, remaining);
+        if (written > 0) {
+            ptr += written;
+            remaining -= written;
+        } else {
+            QThread::msleep(5);
+        }
     }
 }