diff --git a/apps/web-antd/src/views/doctor/doctor-reception/api/index.ts b/apps/web-antd/src/views/doctor/doctor-reception/api/index.ts
index 5731d6e4..cd3fcfad 100644
--- a/apps/web-antd/src/views/doctor/doctor-reception/api/index.ts
+++ b/apps/web-antd/src/views/doctor/doctor-reception/api/index.ts
@@ -459,6 +459,8 @@ export async function aiGeneratePrescriptionApi(data: {
 export async function aiVoiceAsrApi(file: File, durationMs = 0) {
   const fd = new FormData();
   fd.append('audio', file);
+  // PC 已转成 wav；显式声明避免 MIME 误判
+  fd.append('audio_format', 'wav');
   if (durationMs > 0) {
     fd.append('duration_ms', String(durationMs));
   }