diff --git a/src/api/common.js b/src/api/common.js
index e98d8ae2..4656ddad 100644
--- a/src/api/common.js
+++ b/src/api/common.js
@@ -157,6 +157,7 @@ export function downloadVoiceFile(url) {
 		uni.downloadFile({
 			url: `${baseUrl}${url}`,
 			header,
+			timeout: 180000,
 			success(result) {
 				console.log(result)
 				resolve(result)
diff --git a/src/pages/course/study.vue b/src/pages/course/study.vue
index 5c6c95fe..4999363d 100644
--- a/src/pages/course/study.vue
+++ b/src/pages/course/study.vue
@@ -806,6 +806,10 @@
 		//#ifdef APP-PLUS
 		uni.offKeyboardHeightChange(setHeight)
 		// #endif
+		try {
+			teacherVoiceObj?.stop()
+			teacherVoiceObj.src = ''
+		} catch {}
 		// common.show('提示信息', '检测到您已离开，即将退出学习页面。',false, '','确认').then((res) => {
 		// 	common.redirectTo(`/pages/courseDetail/index?crsId=${crsId.value}&crsNum=${crsNum.value}&from=study`)
 		// }).finally(() => {})