websocket and reduce playback

1. I have the problem – this server can’t service audio only streams in websockets player. I use Wirecast 6 to generate streams. And if I send in rtmp only audio stream without video server get error and player can’t playback it. It is really problem because I often use HLS audio only streams and I want to change HLS with websockets to minimize playback delay. 2. How I can reduce playback delay? In Flash I can control delay from 1 sec. 3. I use demo page to test websockets streams. Are you have API and documentation to this player? Can I change design? Or may be exist another player which can playback this type of streams?