Yes, it is possible to set the number of channels to be more than 2 in write_sin_01.py. You can use Python to generate and submit a .wav file with more than two channels, with different waveforms for each channel.To do this, you can modify the `write_wave` function in `thinkdsp.py` module as shown below:```def write_wave(ys, filename='sound.wav', framerate=44100, sampwidth=2, channels=2):nchannels = min(2, channels) # replace 2 with desired number of channels params = nchannels, sampwidth, framerate, len(ys), 'NONE', 'not compressed' with wave.open(filename, 'w') as fp: fp.setparams(params) fp.writeframes(ys.astype(np.int16).tostring())```You can then create waveforms with different frequencies and write them to a .wav file with more than two channels, as shown below:```from thinkdsp import SinSignal, decorate, read_waveimport numpy as npdef generate_wave(duration, start_freq, freq_step, num_channels): waves = [] for i in range(num_channels): freq = start_freq + i * freq_step wave = SinSignal(freq, 0, 1) waves.append(wave) signal = sum(waves) wave = signal.make_wave(duration, num_channels=num_channels) return wave, signaldef main(): duration = 2 start_freq = 440 freq_step = 10 num_channels = 4 wave, signal = generate_wave(duration, start_freq, freq_step, num_channels) wave.write('output.wav')if __name__ == '__main__': main()```In the above code, `generate_wave` function generates multiple `SinSignal`s with increasing frequencies and combines them using `sum` method. It then creates a `Wave` object with `num_channels` and duration `duration`. Finally, it writes the wave to a file named `output.wav`.You can then play the file using any audio player that supports more than two channels.