NxPlayer needs to set curbyte field to zero before enqueuing a buffer. Otherwise, it looks like beginning of the buffer has already been consumed

audio/pcm_decode.c

@@ -1455,8 +1455,6 @@ static int pcm_enqueuebuffer(FAR struct audio_lowerhalf_s *dev,
   lower = priv->lower;
   DEBUGASSERT(lower && lower->ops->enqueuebuffer && lower->ops->configure);
 
-  apb->curbyte = 0;
-
   /* Are we streaming yet? */
 
   if (priv->streaming)