What's the fastest way (if possible in the browser thanks to an online tool, or if not possible easily, with Python), to get the frequency response curve (x-axis: Hz, y-axis: dB), when giving just:
- the sampling rate, example: 44100
- the coefficients, example:
y[n] = 1 * x[n] + (-1) x[n-1] = x[n] - x[n-1]
This would be often useful to quickly have an eye on the frequency response curve of a filter.