python - How to save the output of PyTTSx to wav file

Python - How to save the output of PyTTSx to wav file

To save the output of pyttsx3 (not PyTTSx, which seems to be a typo) to a WAV file in Python, you can follow these steps. pyttsx3 is a text-to-speech conversion library in Python. Here's how you can generate speech and save it to a WAV file:

Installation

First, make sure you have pyttsx3 installed. You can install it using pip if you haven't already:

pip install pyttsx3

Example Code to Save Speech to WAV File

Here's a sample Python script that demonstrates how to use pyttsx3 to generate speech from text and save it to a WAV file:

import pyttsx3 import os # Initialize the text-to-speech engine engine = pyttsx3.init() # Input text to convert to speech text_to_speak = "Hello, this is a sample text to convert to speech and save to a WAV file." # Set properties for saving to WAV engine.setProperty('rate', 150) # Speed percent (can go over 100) engine.setProperty('volume', 0.9) # Volume 0-1 # Save speech to a WAV file output_file = "output_speech.wav" engine.save_to_file(text_to_speak, output_file) # Wait for the speech to be generated and saved engine.runAndWait() # Provide feedback to the user print(f"Speech saved to {output_file}") # Optionally, play the generated speech os.system(f"start {output_file}") # Opens the file with the default application

Explanation:

  1. Initialization: pyttsx3.init() initializes the text-to-speech engine.

  2. Setting Properties: Use engine.setProperty() to adjust settings like speech rate ('rate') and volume ('volume'). These properties can be adjusted according to your preference.

  3. Saving to WAV: engine.save_to_file(text_to_speak, output_file) generates speech from text_to_speak and saves it to output_file in WAV format.

  4. Running and Waiting: engine.runAndWait() ensures that the speech generation and saving are completed before proceeding.

  5. Feedback: Provides feedback to the user about the location where the speech was saved (output_file).

  6. Playing the Speech: Optionally, os.system(f"start {output_file}") opens the saved WAV file with the default application to play the speech.

Notes:

  • File Path: Adjust output_file to the desired path and filename where you want to save the WAV file.

  • Properties: Experiment with rate and volume values to achieve the desired speech output quality.

  • Compatibility: This approach should work on Windows, macOS, and Linux, but the command to open the file (os.system(f"start {output_file}")) may need adjustments for different operating systems.

By following these steps, you can effectively generate speech from text using pyttsx3 and save it to a WAV file in Python, suitable for various applications like voice prompts, audio notifications, and more. Adjust the input text and properties to meet your specific requirements.

Examples

  1. "python PyTTSx save speech to wav file"

    • Description: Learn how to use the pyttsx3 library to convert text to speech and save the output as a WAV file using the pyttsx3 and pydub libraries.
    • Code:
      import pyttsx3 from pydub import AudioSegment from pydub.playback import play # Initialize the text-to-speech engine engine = pyttsx3.init() engine.save_to_file('Hello World', 'output.mp3') engine.runAndWait() # Convert the mp3 file to wav sound = AudioSegment.from_mp3('output.mp3') sound.export('output.wav', format='wav')

  2. "convert pyttsx3 speech to wav file"

    • Description: This code demonstrates how to convert speech generated by pyttsx3 to a WAV file by first saving it to an MP3 file and then converting it to WAV using the pydub library.
    • Code:
      import pyttsx3 from pydub import AudioSegment engine = pyttsx3.init() engine.save_to_file('This is a test', 'test.mp3') engine.runAndWait() audio = AudioSegment.from_mp3('test.mp3') audio.export('test.wav', format='wav')

  3. "saving pyttsx3 output directly to wav file"

    • Description: Directly save the output of pyttsx3 to a WAV file by using a file-like object from the io module.
    • Code:
      import pyttsx3 import io from pydub import AudioSegment engine = pyttsx3.init() with io.BytesIO() as audio_file: engine.save_to_file('Direct to WAV', audio_file) engine.runAndWait() audio = AudioSegment.from_file(audio_file, format="wav") audio.export('direct.wav', format='wav')

  4. "pyttsx3 save speech output as wav using gTTS"

    • Description: Use gTTS to convert text to speech and save it directly as a WAV file.
    • Code:
      from gtts import gTTS from pydub import AudioSegment tts = gTTS('Hello from gTTS', lang='en') tts.save('output.mp3') sound = AudioSegment.from_mp3('output.mp3') sound.export('output.wav', format='wav')

  5. "text to speech save as wav file in python"

    • Description: Utilize pyttsx3 to generate speech from text and save it as a WAV file using wave and io libraries.
    • Code:
      import pyttsx3 import wave import io engine = pyttsx3.init() with io.BytesIO() as buffer: engine.save_to_file('Save as WAV', buffer) engine.runAndWait() buffer.seek(0) with wave.open('output.wav', 'wb') as wav_file: wav_file.setnchannels(1) wav_file.setsampwidth(2) wav_file.setframerate(44100) wav_file.writeframes(buffer.read())

  6. "python pyttsx3 save voice output to wav"

    • Description: A detailed approach to saving voice output from pyttsx3 to a WAV file by using pydub for format conversion.
    • Code:
      import pyttsx3 from pydub import AudioSegment engine = pyttsx3.init() engine.save_to_file('Voice Output to WAV', 'voice.mp3') engine.runAndWait() audio = AudioSegment.from_mp3('voice.mp3') audio.export('voice.wav', format='wav')

  7. "pyttsx3 save audio to wav file in python"

    • Description: Convert speech from pyttsx3 to a WAV file by leveraging an intermediary MP3 file and then converting it using pydub.
    • Code:
      import pyttsx3 from pydub import AudioSegment engine = pyttsx3.init() engine.save_to_file('Audio to WAV', 'audio.mp3') engine.runAndWait() audio = AudioSegment.from_mp3('audio.mp3') audio.export('audio.wav', format='wav')

  8. "how to save pyttsx3 output as wav file"

    • Description: Save the output of pyttsx3 as an MP3 file and then convert it to a WAV file using the pydub library.
    • Code:
      import pyttsx3 from pydub import AudioSegment engine = pyttsx3.init() engine.save_to_file('Output as WAV', 'output.mp3') engine.runAndWait() sound = AudioSegment.from_mp3('output.mp3') sound.export('output.wav', format='wav')

  9. "pyttsx3 convert text to speech and save as wav"

    • Description: Demonstrates using pyttsx3 to convert text to speech and save the output as a WAV file through MP3 conversion.
    • Code:
      import pyttsx3 from pydub import AudioSegment engine = pyttsx3.init() engine.save_to_file('Convert text to WAV', 'text.mp3') engine.runAndWait() audio = AudioSegment.from_mp3('text.mp3') audio.export('text.wav', format='wav')

  10. "python pyttsx3 export speech to wav file"

    • Description: Export speech generated by pyttsx3 to a WAV file by saving to MP3 first and then converting using pydub.
    • Code:
      import pyttsx3 from pydub import AudioSegment engine = pyttsx3.init() engine.save_to_file('Export to WAV', 'speech.mp3') engine.runAndWait() sound = AudioSegment.from_mp3('speech.mp3') sound.export('speech.wav', format='wav')

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