adding barplot visualizer (#184)

barplot.py

@@ -0,0 +1,85 @@
+import numpy as np
+import sounddevice as sd
+import matplotlib.pyplot as plt
+import matplotlib.animation as animation
+from matplotlib.widgets import Button
+
+# Constants
+CHUNK = 1024
+RATE = 22050  # Sample rate
+N_BARS = 50  # Number of bars in the visualization
+
+# Initialize plot
+fig, ax = plt.subplots(figsize=(10, 6))
+bars = ax.bar(np.arange(N_BARS), np.zeros(N_BARS), color='blue')
+ax.set_ylim(0, 1)
+ax.set_xlim(0, N_BARS)
+ax.set_title('Real-time Audio Bar Visualization')
+ax.set_xlabel('Frequency Bins')
+ax.set_ylabel('Amplitude')
+
+# Global variables
+is_paused = False
+color_maps = ['blue', 'green', 'red', 'purple', 'orange']
+color_map_index = 0
+audio_data = np.zeros(CHUNK)
+
+# Function to update the plot
+def update(frame):
+    global audio_data, is_paused, bars, color_maps, color_map_index
+    if not is_paused:
+        # Compute the FFT of the audio data
+        fft_data = np.abs(np.fft.fft(audio_data)[:N_BARS])
+        # Normalize the data
+        fft_data = fft_data / np.max(fft_data)
+        # Update the heights and colors of the bars
+        for bar, height in zip(bars, fft_data):
+            bar.set_height(height)
+            bar.set_color(color_maps[color_map_index])
+    return bars
+
+# Callback function for audio input stream
+def audio_callback(indata, frames, time, status):
+    global audio_data
+    if status:
+        print(status)
+    audio_data = indata[:, 0]
+
+# Function to toggle pause/resume
+def toggle_pause(event):
+    global is_paused
+    is_paused = not is_paused
+    if is_paused:
+        ax.set_title('Real-time Audio Bar Visualization (Paused)')
+    else:
+        ax.set_title('Real-time Audio Bar Visualization')
+
+# Function to change color
+def change_color(event):
+    global color_map_index
+    color_map_index = (color_map_index + 1) % len(color_maps)
+    update(None)  # Force an update to apply the new color
+
+# Add pause/resume button
+ax_pause = plt.axes([0.81, 0.01, 0.1, 0.075])
+btn_pause = Button(ax_pause, 'Pause/Resume')
+btn_pause.on_clicked(toggle_pause)
+
+# Add change color button
+ax_color = plt.axes([0.61, 0.01, 0.15, 0.075])
+btn_color = Button(ax_color, 'Change Color')
+btn_color.on_clicked(change_color)
+
+# Start the audio input stream
+stream = sd.InputStream(callback=audio_callback, channels=1, samplerate=RATE, blocksize=CHUNK)
+stream.start()
+
+# Start the animation
+ani = animation.FuncAnimation(fig, update, blit=False, interval=50)
+
+# Show plot
+plt.show()
+
+# Stop the stream on exit
+stream.stop()
+stream.close()

mainLanding.py

@@ -50,7 +50,9 @@ def build(self):
             "Depth-Perspective Visualizer",
             "Chroma-Feature Visualizer"
             "Lissajous-Curves Visualizer",
-            "Voxel-Grid Visualizer"
+            "Voxel-Grid Visualizer",
+            "Chromagram Visualizer",
+            "BarPlot Histogram Visualizer"
         ]
         for visualizer in visualizers:
             button = Button(
@@ -148,9 +150,11 @@ def launch_visualizer(self, instance):
             "Spectrogram": "Spectrogram.py",
             "Intensity vs Frequency and Time": "Intensity-vs-Frequency-and-Time.py",
             "Depth-Perspective Visualizer": "Depth-Perspective-Visualizer.py",
-            "Chroma-Feature Visualizer": "Chroma-Feature-Visualizer.py"
+            "Chroma-Feature Visualizer": "Chroma-Feature-Visualizer.py",
             "Lissajous-Curves Visualizer": "Lissajous-Curves-Visualizer.py",
-            "Voxel-Grid Visualizer": "Voxel-Grid-Visualizer.py"
+            "Voxel-Grid Visualizer": "Voxel-Grid-Visualizer.py",
+            "Chromagram Visualizer": "Chromagram.py",
+            "BarPlot Histogram Visualizer": "barplot.py"
         }
 
         script_name = instance.text

requirements.txt

@@ -6,3 +6,6 @@ PySimpleGUI
 sounddevice
 soundfile
 librosa
+kivy
+pygame 
+PyOpenGL