diff --git a/src/uni_modules/ty-recording/utssdk/app-ios/index.uts b/src/uni_modules/ty-recording/utssdk/app-ios/index.uts
index b0358f33..118cff78 100644
--- a/src/uni_modules/ty-recording/utssdk/app-ios/index.uts
+++ b/src/uni_modules/ty-recording/utssdk/app-ios/index.uts
@@ -3,10 +3,24 @@ import { StartAudioRecordFailImpl, AudioErrorCode } from '../unierror.uts';
 
 
 import { UTSiOS } from "DCloudUTSFoundation"
+import { AVAudioEngine, AVAudioSession, AVAudioFormat, AVAudioInputNode, AVAudioPCMBuffer } from "AVFoundation";
+import { NSData, NSMutableData } from "Foundation";
 
-// 线程安全的录制状态标识
+// @argumentLabel("forBus") 
+/**
+ * 音频采集状态（全局变量，保证生命周期）
+ */
 let isRecording = false;
-
+/**
+ * 音频引擎实例（全局变量，避免异步回调中被释放）
+ */
+let audioEngine: AVAudioEngine | null = null;
+/**
+ * 音频输入节点（全局变量，避免被释放）
+ */
+let inputNode: AVAudioInputNode | null = null;
+// 全局复用缓冲区（避免每次创建新数组）
+let reuseInt32Array: Int32Array | null = new Int32Array(4800);
 
 /**
  * 启动音频采集（iOS端核心实现）
@@ -16,19 +30,83 @@ let isRecording = false;
 export function startAudioRecord(options: StartAudioRecordOptions): void {
     // 避免重复启动
 	console.log('避免重复启动', isRecording);
-    if (isRecording) return;
+    // if (isRecording) return;
     
     try {
 		const audioSession = AVAudioSession.sharedInstance();
-		const authStatus = audioSession.recordPermission();
-		console.log('asaadda', authStatus);
+		UTSiOS.try(audioSession.setCategory(
+			AVAudioSession.Category.playAndRecord,
+			mode=AVAudioSession.Mode.spokenAudio,
+			options= AVAudioSession.CategoryOptions.duckOthers // 可选：其他音频静音
+		));
+		// UTSiOS.try(audioSession.setCategory(AVAudioSession.Category.playAndRecord));
+		// UTSiOS.try(audioSession.setMode(AVAudioSession.Mode.spokenAudio));
+		UTSiOS.try(audioSession.setActive(true));
+		audioSession.requestRecordPermission((granted: boolean) => {
+				    // 闭包内处理权限结果（异步执行）
+				    if (granted) {
+				        // 权限通过：继续初始化采集逻辑
+				        try {
+				            // 创建音频引擎（移到闭包内，保证权限通过后才执行）
+				            audioEngine = AVAudioEngine.init();
+							if (audioEngine === null) { // 解包：先判断是否为nil
+								throw new Error("音频输入节点为空，无法获取音频格式");
+							}
+				            inputNode = audioEngine!.inputNode;
+						    if (inputNode === null) { // 解包：先判断是否为nil
+								throw new Error("音频输入节点为空，无法获取音频格式");
+							}
+							const unwrappedInputNode = inputNode!;
+						    const inputFormat = unwrappedInputNode.inputFormat(forBus= 0);
+							unwrappedInputNode.installTap(
+									onBus= 0,  // 总线编号，通常传 0
+							        bufferSize= 1024,  // 缓冲区大小，常用 1024/2048
+							        format= inputFormat,  // 音频格式
+							        block=(buffer: AVAudioPCMBuffer, time: any) => {
+										const floatData = buffer.floatChannelData;
+										const channelData = floatData![0];
+										const frameLength = buffer.frameLength as number;
+										const bytesPerSample = 2; // 16位整型=2字节/样本
+										const totalBytes = frameLength * bytesPerSample;
+											
+										console.log(channelData);
+										console.log(totalBytes);
+										const pcmData = NSMutableData.dataWithCapacity(20); // 可变Data，支持写入
+										
+										// const data = new Float32Array(int32Array.byteLength);
+										// data.set(int32Array.buffer, 1); // 内存块拷贝，替代逐字节写入
+										
+										options.onFrame?.(pcmData);
+										// if (floatData !== null) {
+										// 	// 单声道取第0个通道（立体声可取[0]左声道、[1]右声道）
+										// 	const channelData = floatData[0];
+											
+										// 	options.onFrame?.(channelData)
+										// }
+							        }
+							);
+							UTSiOS.try(audioEngine!.start());
+							if (audioEngine!.isRunning) {
+							    console.log("引擎确实处于运行状态");
+							    isRecording = true;
+							} else {
+							    console.error("调用 start() 但引擎未运行");
+							}
+				            isRecording = true;
+				        } catch (error) {
+				            isRecording = false;
+				        }
+				    } else {
+				        // 权限被拒绝：回调错误
+				        isRecording = false;
+				    }
+		});
         isRecording = true;
     } catch (error) {
         // 初始化失败回调错误
-        const err = new StartAudioRecordFailImpl(AudioErrorCode.AUDIO_FORMAT_ILLEGAL);
+        const err = new StartAudioRecordFailImpl(9010002);
         options.onError?.(err);
         // 重置状态
-        
         return;
     }
 }
@@ -37,7 +115,34 @@ export function startAudioRecord(options: StartAudioRecordOptions): void {
  * 停止音频采集（配套停止逻辑，保证功能完整）
  * @param options 回调配置
  */
-@UTSJS.keepAlive
+
 export function stopAudioRecord(): void {
+	if (audioEngine === null) { // 解包：先判断是否为nil
+		isRecording = false;
+		return; // 直接返回，不执行后续逻辑
+	}
+	const _audioEngine = audioEngine!
+    if (_audioEngine.isRunning) {
+        _audioEngine.stop();
+    }
+	if (inputNode === null) { // 解包：先判断是否为nil
+		isRecording = false;
+		return; // 直接返回，不执行后续逻辑
+	}
+	const _inputNode = inputNode!
+    _inputNode.removeTap(onBus= 0); // 移除音频回调
     
+    
+    // 停用音频会话
+    const audioSession = AVAudioSession.sharedInstance();
+	
+	try {
+		UTSiOS.try(audioSession.setActive(false));
+	}catch (e) {
+		console.log(e)
+	} 
+	inputNode = null;
+	audioEngine = null; // 释放全局引擎
+	isRecording = false;
+	
 }
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