diff --git a/internal/asr/client.go b/internal/asr/client.go
index bda6052..e6030c8 100644
--- a/internal/asr/client.go
+++ b/internal/asr/client.go
@@ -63,8 +63,8 @@ func Dial(cfg Config, resultCh chan<- wsMsg.ServerMsg) (*Client, error) {
 	req := &FullClientRequest{
 		User: UserMeta{UID: connID},
 		Audio: AudioMeta{
-			Format:  "raw",
-			Codec:   "pcm",
+			Format:  "pcm",
+			Codec:   "raw",
 			Rate:    16000,
 			Bits:    16,
 			Channel: 1,