main application with tuning, playing, and GUI

main.py

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+import numpy as np
+import matplotlib.pyplot as plt
+from pysdr import IQFileSource
+from pysdr import FMReceiver
+from hackrf import HackRfSource
+
+# Set the HackRF parameters
+sample_rate = 2e6  # 2 MHz sample rate
+center_freq = 100e6  # 100 MHz center frequency
+
+# Set the FM receiver parameters
+audio_sample_rate = 48e3  # 48 kHz audio sample rate
+fm_deviation = 75e3  # FM deviation (typical for broadcast FM)
+
+# Create HackRF source
+hackrf_source = HackRfSource(sample_rate, center_freq)
+
+# Create IQ file source
+iq_file_source = IQFileSource('fm_radio.iq', sample_rate)
+
+# Create FM receiver
+fm_receiver = FMReceiver(sample_rate, audio_sample_rate, fm_deviation)
+
+# Read samples from the source and process them
+try:
+    while True:
+        samples = hackrf_source.read_samples(1024)
+        if len(samples) == 0:
+            break
+
+        # Process the samples using the FM receiver
+        audio_samples = fm_receiver.process(samples)
+
+        # Do something with the audio samples (e.g., play them)
+        # For simplicity, let's just plot the spectrum
+        plt.specgram(audio_samples, Fs=audio_sample_rate, cmap='viridis')
+        plt.xlabel('Time (s)')
+        plt.ylabel('Frequency (Hz)')
+        plt.title('FM Radio Spectrum')
+        plt.show()
+
+except KeyboardInterrupt:
+    pass
+
+finally:
+    # Close the HackRF source
+    hackrf_source.close()