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import gradio as gr
import subprocess
import os
import tempfile
def speak_text_via_festival(text):
"""
Uses Festival to speak the given text and returns the path to the generated audio file.
"""
if not text:
return None
# Create a temporary WAV file for Festival output
# Using tempfile to ensure unique and safely managed temporary files
with tempfile.NamedTemporaryFile(suffix=".wav", delete=False) as temp_audio_file:
audio_filepath = temp_audio_file.name
try:
# Command to make Festival speak and output to a WAV file
# (audio_mode 'wav) makes it output to a file instead of direct playback
# (utt.save.wave utt "filename.wav") saves the utterance
festival_command = f"""
(set! utt (SayText "{text}"))
(utt.save.wave utt "{audio_filepath}")
"""
process = subprocess.Popen(['festival', '--pipe'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
text=True)
stdout, stderr = process.communicate(input=festival_command)
if process.returncode != 0:
print(f"Error speaking text with Festival: {stderr}")
if os.path.exists(audio_filepath):
os.remove(audio_filepath) # Clean up partial file
return None
# Gradio's gr.Audio component expects a path to the audio file
return audio_filepath
except FileNotFoundError:
print("Error: Festival executable not found. Make sure Festival is installed and in your PATH.")
if os.path.exists(audio_filepath):
os.remove(audio_filepath)
return None
except Exception as e:
print(f"An unexpected error occurred: {e}")
if os.path.exists(audio_filepath):
os.remove(audio_filepath)
return None
# Define the Gradio Interface
iface = gr.Interface(
fn=speak_text_via_festival,
inputs=gr.Textbox(lines=2, label="Enter text for Festival TTS:"),
outputs=gr.Audio(label="Generated Audio", type="filepath", autoplay=True),
title="Festival TTS with Gradio",
description="Enter text to synthesize speech using the local Festival system."
)
# Launch the Gradio app
if __name__ == "__main__":
iface.launch()
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