diff --git a/src/common/audio.ts b/src/common/audio.ts
index 4dd82afd..388c0cfd 100644
--- a/src/common/audio.ts
+++ b/src/common/audio.ts
@@ -40,12 +40,14 @@ async function convert(filePath: string, pcmPath: string, logger: LogWrapper): P
     });
 }
 
-async function handleWavFile(file: Buffer, filePath: string, pcmPath: string, logger: LogWrapper): Promise<Buffer> {
+async function handleWavFile(
+    file: Buffer, filePath: string, pcmPath: string, logger: LogWrapper
+): Promise<{input: Buffer, sampleRate: number}> {
     const { fmt } = getWavFileInfo(file);
     if (!ALLOW_SAMPLE_RATE.includes(fmt.sampleRate)) {
-        return await convert(filePath, pcmPath, logger);
+        return {input: await convert(filePath, pcmPath, logger), sampleRate: 24000};
     }
-    return file;
+    return {input: file, sampleRate: fmt.sampleRate};
 }
 
 export async function encodeSilk(filePath: string, TEMP_DIR: string, logger: LogWrapper) {
@@ -55,8 +57,10 @@ export async function encodeSilk(filePath: string, TEMP_DIR: string, logger: Log
         if (!isSilk(file)) {
             logger.log(`语音文件${filePath}需要转换成silk`);
             const pcmPath = `${pttPath}.pcm`;
-            const input = isWav(file) ? await handleWavFile(file, filePath, pcmPath, logger) : await convert(filePath, pcmPath, logger);
-            const silk = await encode(input, 24000);
+            const { input, sampleRate } = isWav(file)
+                ? (await handleWavFile(file, filePath, pcmPath, logger))
+                : {input: await convert(filePath, pcmPath, logger), sampleRate: 24000};
+            const silk = await encode(input, sampleRate);
             await fsPromise.writeFile(pttPath, silk.data);
             logger.log(`语音文件${filePath}转换成功!`, pttPath, '时长:', silk.duration);
             return {
diff --git a/src/onebot/api/msg.ts b/src/onebot/api/msg.ts
index 826e1d00..7cfff9d5 100644
--- a/src/onebot/api/msg.ts
+++ b/src/onebot/api/msg.ts
@@ -466,7 +466,6 @@ export class OneBotMsgApi {
                 sendMsg.data.summary,
                 sendMsg.data.sub_type,
             );
-            context.deleteAfterSentFiles.push(sendPicElement.picElement.sourcePath);
             return sendPicElement;
         },
 
diff --git a/src/onebot/api/quick-action.ts b/src/onebot/api/quick-action.ts
index 6ba910fb..6434b26f 100644
--- a/src/onebot/api/quick-action.ts
+++ b/src/onebot/api/quick-action.ts
@@ -47,7 +47,7 @@ export class OneBotQuickActionApi {
         const peerContextMode = msg.message_type == 'private' ? ContextMode.Private : ContextMode.Group;
 
         const peer: Peer = await createContext(this.core, {
-            message: "",
+            message_type: undefined,
             group_id: msg.group_id?.toString(),
             user_id: msg.user_id?.toString(),
         }, peerContextMode);