docs: def synthesize(self, duration):
          """
          Synthesize white noise
  
          Args:
              duration (numpy.timedelta64): The duration of the synthesized sound
          """
          sr = self.samplerate.samples_per_second
          seconds = duration / Seconds(1)
          samples = np.random.uniform(low=-1., high=1., size=int(sr * seconds))
          return AudioSamples(samples, self.samplerate)