diff --git a/src/api/common.js b/src/api/common.js
index f8bf7f6b..f70be42a 100644
--- a/src/api/common.js
+++ b/src/api/common.js
@@ -96,7 +96,6 @@ export function downloadVoiceFile(url) {
 	if (token) 
 			header['summary'] = token
 	let baseUrl = get_base_url();
-	let _params = new FormData()
 	return new Promise((resolve, reject) => {  
 		uni.downloadFile({  
 			url: `${baseUrl}${url}`,  
diff --git a/src/pages/course/study.vue b/src/pages/course/study.vue
index 7deb9269..9dc3c0ba 100644
--- a/src/pages/course/study.vue
+++ b/src/pages/course/study.vue
@@ -171,7 +171,7 @@ const nextStep = () => {
 			console.log(111)
 			if( socketTask && socketTask.readyState === 1){
 				sendMessage({
-					"commond" : 'open',
+					"commond" : 'OPEN',
 					"body" : {
 						crsId: crsId.value,
 						teacherNo: choiceTeacher.value
@@ -305,6 +305,8 @@ onShow(()=>{
 })
 onHide(()=>{ 
 	closeWebSocket()
+	teacherVoiceObj.stop()
+	teacherVoiceObj.src = ''
 })
 // onUnmounted(()=>{
 // 	closeWebSocket()
@@ -342,11 +344,7 @@ const hideOverlayTalking = (obj) => {
 	// #endif
 	if(!isOut.value){
 		console.log('发送')
-		// let formData = new FormData()
-		// formData.append('voice',)
-		console.log(audioPath.value)
 		setTimeout(()=>{
-			
 			uploadVoiceFile(audioPath.value,{}).then(res=>{
 				console.log(JSON.parse(res.data))
 			}).catch(err=>{