Realtime Graph from Audio Inputs

I have a measuring device that sends audio outputs through an audio jack that plugs into the audio input in a computer. This piece of equipment is a bio-chemical device that measures the rate of blood circulation (hence it measures your anxiety level based on the speed of your blood as it travels through your body and interprets it into audio outputs of high to low frequency and volume. This device comes with its own charting software that lets the user track his or her own progress through a period of time. Instead of windows software, I need an application that I can embed into an HTML page (preferably Flash, but not necessary) (to be viewed by a web browser) that charts in realtime these audio inputs. This application will be embedded into an html web site and keep track of user anxiety level as he/she surfs the web site (internet optimization of application NOT NEEDED since the site will run off of a CD). I have no idea what kind of programming is needed for this project, so give me a short or long explanation of how you plan to achieve this in your bid or PMD. Please do not bid unless you have a good idea of how to accomplish this project by letting me know that I am in good hands.