I'm graphing the voice quality of a phone call over its duration. The voice quality is computed in real-time every t seconds. This is resulting in a wavy line graph. At the end of the call, I am able to compute the average voice quality achieved throughout the call. I want to go back and overlay a flat line, with this value, over the wavy line graph.
Right now I'm using "transaction" to combine all the measurements from the same call, and then using "streamstats" to calculate the average voice quality. However, transaction is defined in time by its starting time, so when I go to plot the average voice quality, it shows up as a single point, plotted near the beginning of the phone call. I would like it to extend the full length of the phone call.
Thank you very much for your response! It came very close to solving my problem, but not totally. Unfortunately, when there is more than one call in the time interval displayed, all the calls show up with the same average. I need to be able to display the average quality for each call, that's why I thought I might need to use "transaction". Any other ideas?
I tried posting a screenshot, but currently don't have enough karma 😞