asgaut

# Plot spectrum of wav file saved by SDR# as function of time (3D plot)
# Bandwidth = 32 kHz when input sample rate = 2.048 MHz (decimated by 64)
# Asgaut Eng/2016-10-02

import numpy as np
import scipy.io.wavfile as wav
import scipy.signal as signal
from scipy.fftpack import fft, fftfreq, fftshift
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D