Test espeak with docker

Dockerfile

# Use the official Python image as a base
FROM python:3.8-slim

# Set environment variables
ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8

# Install dependencies
RUN apt-get update && apt-get install -y \
    espeak-ng \
    git \
    alsa-utils \
    pulseaudio \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Create a working directory
WORKDIR /app

# Create the output directory
RUN mkdir -p /app/output

# Copy the requirements file into the container
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application code
COPY . .

# Command to run the application
CMD ["python", "test_pyttsx3.py"]

requirements.txt

git+https://github.com/willwade/py3-tts.git@master#egg=py3-tts

test_pyttsx3.py

import pyttsx3
import os

def onStart(name):
    print('starting', name)

def onWord(name, location, length):
    print('word', name, location, length)

def onEnd(name, completed):
    print('finishing', name, completed)

engine = pyttsx3.init('espeak')
engine.connect('started-utterance', onStart)
engine.connect('started-word', onWord)
engine.connect('finished-utterance', onEnd)
engine.say('The quick brown fox jumped over the lazy dog.')
engine.save_to_file('Hello World', 'output/test.wav')
engine.runAndWait()

# Verify the file
output_file = 'output/test.wav'
if os.path.exists(output_file):
    print(f"{output_file} exists")
    if os.path.getsize(output_file) > 0:
        print(f"{output_file} has data")
    else:
        print(f"{output_file} is empty")
else:
    print(f"{output_file} does not exist")

docker build -t pyttsx3-app .
docker run --rm pyttsx3-app

or

docker run -it --rm -v ~/Desktop:/app/output pyttsx3-app