I want to plot the raw signal data from audio data that is sampled at the standard 44Kbps but there is a challenge if the signal is taken for a very long time; eg. 3 hrs of signal. There is then considerable latency in the presentation of the finalized plot and the time taken to save the figure to disk.
What can be done to reduce the time taken to visualize and save the figure to disk? Are there any ‘tricks’ in GR or Pyplot that can utilize some preset functionality? I was thinking that subsampling the signal would be the only route and visualizing that subsampled signal instead. Are there any recommended avenues for that and for the plotting packages a recommended max number of points for the latency to not grow too large