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# modules/tts_handler.py
import subprocess
import platform
import sys
import os
import config
import tempfile
import numpy as np
import wave
def text_to_speech_file(text_to_speak):
"""Generate TTS audio file - with fallback to silent audio if TTS fails"""
print(f"AI generating audio for: {text_to_speak[:100]}...")
try:
# Try using system TTS (macOS say command)
if platform.system() == "Darwin": # macOS
with tempfile.NamedTemporaryFile(delete=False, suffix=".wav") as wav_file:
wav_filename = wav_file.name
# Use macOS 'say' command to generate speech
command = ['say', '-o', wav_filename, '--data-format=LEF32@22050', text_to_speak]
process = subprocess.run(command, capture_output=True, text=True, timeout=30)
if process.returncode == 0 and os.path.exists(wav_filename):
print("✅ TTS generated successfully with macOS 'say'")
return wav_filename
else:
print("❌ macOS 'say' command failed, falling back to silent audio")
return create_silent_audio()
else:
print("❌ TTS not available on this system, using silent audio")
return create_silent_audio()
except Exception as e:
print(f"❌ TTS generation failed: {e}")
return create_silent_audio()
def create_silent_audio():
"""Create a short silent audio file as fallback"""
try:
with tempfile.NamedTemporaryFile(delete=False, suffix=".wav") as wav_file:
wav_filename = wav_file.name
# Create 1 second of silence
sample_rate = 22050
duration = 1.0 # seconds
samples = int(sample_rate * duration)
audio_data = np.zeros(samples, dtype=np.int16)
# Write WAV file
with wave.open(wav_filename, 'w') as wav_file:
wav_file.setnchannels(1) # Mono
wav_file.setsampwidth(2) # 2 bytes per sample
wav_file.setframerate(sample_rate)
wav_file.writeframes(audio_data.tobytes())
print("✅ Silent audio fallback created")
return wav_filename
except Exception as e:
print(f"❌ Even silent audio creation failed: {e}")
return None |