text: how do i hear streaming audio? i think my antivirus or firewall is blocking me from hearing audio on the internet. i can't hear music on myspace and i can't hear videos on youtube. how can i fix this? any advice would be great! try these. 1. turn your speakers on. 1.a. if you don't have sound after doing that, fix your sound card and/or audio settings. 2. press the play button. 3. check your browser and security settings.  that's all i can think of. the first one may sound a little condescending, but it's something a lot of people overlook.