You would first need to concentrate on the sound quality that you would be using on your Website. Because you would be relaying information using your own or somebody else's voice, then it would be crucible that you would be able to do so clearly and efficiently. Quality would not only require that you have the best equipment but also a voice that can be heard and understood clearly.
You could also aim to put audio streaming on the portions of your Website which are most dull and monotonous. These web pages would probably include the About Us web page. This is because people might not normally be interested in reading paragraph upon paragraph of your company's profile, but with audio streaming, you will be able to capture the attention of your reader, which is essential in achieving brand awareness.
It would also be good to add the recordings from TV and radio interviews.
Also remember that audio streaming files are a bit heavy, which could in turn affect your Website's download speed. And so, it would be important to compress your files to smaller formats like WAV or MP3. That way, your files would be a lot easier to download and would not be taking up too much space.
It would pay to have several variations with the topics you have. You need not just focus on the ones, which are directly related to the products, and services that you offer. That way, you would be able to reach out to more users.