I am recording audio in WAV format using AudioRecord. How to plot the received data while recording in form of a realtime graph using android plot.
Android: Display data captured using AudioRecord in form a dynamic chart using android plot
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This question is much too broad to fully answer, but I can hopefully at least point you in the right direction to get started. I'd suggest beginning by converting your data into an
XYSeries. There are multiple ways to do this and which one you choose depends on how you want your dynamic data to look:x?Once you know the answer to these questions you can begin to decide how to represent each sample in terms of
[x, y]values. This means converting each sample(i) into an x and y value. Fory, you'll need to convert your wav amplitude into aNumber. Forx, if you just want to show the sample index, usei. If you want to show time then you'll probably want to use the sampling frequency and recording start time to convertiinto a timestamp.Once you've got the basics of your
XYSeriesimplementation figured out you can move on to displaying the series data in anXYPlot. Take a look at the Plotting Dynamic Data guide, which includes a link to source samples.