Html5 audio not working in FF4 / Safari

Question

I got this audio link in an html5 document:

   <audio 
      src="http://sverigesradio.se/topsy/ljudfil/3017771.m4a" 
      type="audio/mp4" 
      controls="true" 
      preload="metadata" 
      title="Senaste sändningen från Radiosporten">
   Senaste sändningen från Radiosporten</audio>

It displays correctly in chrome, but in FF4 it first flashes normally with controls, and then I get a big "X". On safari, it seems to hang while reading metadata.

Is there a problem with my audio tag or audio file? Is redirection a problem?

Answer 1

Firefox does not support MP4 audio, it only supports OGG audio.

Answer 2

See this page for audio support:

http://html5doctor.com/native-audio-in-the-browser/

UPDATE: m4a ( ), Safari Chrome , , IE9, .

( , ): http://diveintohtml5.ep.io/video.html

2: , .

Answer 3

Firefox does not support mp4, but you can use the PCM sound standard, such as .WAV, which supports firefox, safari and chrome.