How to save pyttsx3 results to MP3 or WAV file?

How to save pyttsx3 results to MP3 or WAV file?

To save the results of the pyttsx3 library to an MP3 or WAV file, you can't directly do it using pyttsx3 alone. However, you can make use of an intermediate library called pyaudio to capture the audio output and then save it to a file format like WAV.

Here's a step-by-step guide to achieve this:

  • Install Required Libraries: Ensure you've installed pyttsx3, pyaudio, and wave.

    pip install pyttsx3 pyaudio wave

  • Capture and Save Audio to WAV:

    import pyttsx3 import pyaudio import wave def save_speech_to_wav(text, filename): # Initialize pyttsx3 engine engine = pyttsx3.init() # Setup pyaudio for recording FORMAT = pyaudio.paInt16 CHANNELS = 1 RATE = 44100 CHUNK = 1024 RECORD_SECONDS = len(text) * 0.1 # Rough estimate audio = pyaudio.PyAudio() # Start Recording stream = audio.open(format=FORMAT, channels=CHANNELS, rate=RATE, input=True, frames_per_buffer=CHUNK) frames = [] engine.save_to_file(text, 'dummy.mp3') # This is a hack. We don't really need the mp3 file. engine.runAndWait() # This plays the audio which we record print("Recording...") for _ in range(0, int(RATE / CHUNK * RECORD_SECONDS)): data = stream.read(CHUNK) frames.append(data) print("Finished recording") # Stop everything stream.stop_stream() stream.close() audio.terminate() # Save to WAV file with wave.open(filename, 'wb') as wf: wf.setnchannels(CHANNELS) wf.setsampwidth(audio.get_sample_size(FORMAT)) wf.setframerate(RATE) wf.writeframes(b''.join(frames)) save_speech_to_wav("Hello, this is a test!", "output.wav")

Please note that this method might not always be accurate in terms of starting and ending the recording at the right time. The RECORD_SECONDS value is just a rough estimate. Adjust as necessary.

  • Convert WAV to MP3 (Optional):

    If you want to convert the WAV file to MP3, you can use pydub:

    pip install pydub

    To convert:

    from pydub import AudioSegment sound = AudioSegment.from_wav("output.wav") sound.export("output.mp3", format="mp3")

    Ensure you have ffmpeg or libav installed as they're prerequisites for pydub when working with MP3s.

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