Create app.py

app.py

@@ -0,0 +1,77 @@
+# app.py
+
+import gradio as gr
+from audio_tuner import change_audio_tuning
+import os
+
+def tuning_interface(audio_input, initial_tuning, desired_tuning):
+    """
+    A wrapper function to connect the core logic to the Gradio interface.
+    
+    Args:
+        audio_input (str): The temporary filepath of the uploaded audio provided by Gradio.
+        initial_tuning (float): The initial tuning frequency from the number input.
+        desired_tuning (float): The desired tuning frequency from the number input.
+
+    Returns:
+        (int, numpy.ndarray) or None: The processed audio data or None if an error occurs.
+    """
+    if audio_input is None:
+        raise gr.Error("Please upload an audio file first.")
+    
+    try:
+        # The first argument from the gr.Audio input is the filepath
+        return change_audio_tuning(audio_input, initial_tuning, desired_tuning)
+    except ValueError as e:
+        # Display errors gracefully in the Gradio interface
+        raise gr.Error(str(e))
+    except Exception as e:
+        raise gr.Error(f"An unexpected error occurred: {e}")
+
+
+# --- Define the Gradio Interface ---
+with gr.Blocks(theme=gr.themes.Soft()) as demo:
+    gr.Markdown(
+        """
+        # Audio Tuning Speed Adjuster
+        Upload an audio file, set its original tuning frequency (e.g., A4 = 440Hz),
+        and then set your desired tuning frequency (e.g., A4 = 432Hz).
+        The app will slow down or speed up the audio to match the desired tuning without digital pitch correction.
+        """
+    )
+    
+    with gr.Row():
+        with gr.Column():
+            audio_in = gr.Audio(type="filepath", label="Input Audio")
+            
+            gr.Markdown("### Tuning Parameters")
+            initial_hz = gr.Number(label="Initial Tuning (Hz)", value=440)
+            desired_hz = gr.Number(label="Desired Tuning (Hz)", value=432)
+            
+            submit_btn = gr.Button("Apply Tuning", variant="primary")
+            
+        with gr.Column():
+            audio_out = gr.Audio(label="Tuned Audio", type="numpy")
+
+    submit_btn.click(
+        fn=tuning_interface, 
+        inputs=[audio_in, initial_hz, desired_hz], 
+        outputs=audio_out
+    )
+    
+    gr.Examples(
+        examples=[
+            [None, 440, 432],
+            [None, 440, 528],
+            [None, 432, 444],
+        ],
+        inputs=[audio_in, initial_hz, desired_hz],
+        outputs=audio_out,
+        fn=tuning_interface,
+        cache_examples=False # Set to True if you have example audio files
+    )
+
+
+# --- Run the App ---
+if __name__ == "__main__":
+    demo.launch()