FLV Audio Quality Drops when viewed online

I have a FLV playing in my SWF and when viewed locally in Flash or just in the Flash player by clicking the file on my desktop the file plays fine with decent quality audio.

However as soon as I upload the file to my website the audio quality seems to drop.

The difference is quite noticeable, is there any reason for this?

The FLV is playing with AS not the FLV playback comp if that makes any difference.