构建语音助手时如何将pyttsx3语音设置为男声？调整语速与频率无效的解决及代码修改方案

Hey there! The issue you’re facing is that pyttsx3 defaults to the first available voice on your system, which happens to be female. To switch to a male voice, you need to explicitly select one from the list of installed voices on your machine. Here’s how to modify your code:

Step 1: Identify Available Voices (Optional but Helpful) #

First, let’s print out all voices installed on your system so you can spot the male one. Add this snippet right after initializing the engine:

# Get list of available voices
voices = engine.getProperty('voices')
# Print details of each voice to find the male option
for voice in voices:
    print(f"Voice ID: {voice.id}")
    print(f"Name: {voice.name}")
    print(f"Language: {voice.language}\n")

Running this will show entries like (example on Windows):

Voice ID: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens\TTS_MS_EN-US_DAVID_11.0
Name: Microsoft David Desktop - English (United States)
Language: en-us

Step 2: Update Code to Use Male Voice #

Once you’ve identified the male voice’s ID or index, update your code to set that voice. Here’s the full modified version:

import speech_recognition as sr
import pyttsx3

listener = sr.Recognizer()
engine = pyttsx3.init()

# Set male voice (adjust index or use exact ID from your system's output)
voices = engine.getProperty('voices')
# Example: Use the second voice (common for male on Windows) or replace with your male voice ID
engine.setProperty('voice', voices[1].id)

# Optional: Tweak rate and volume if needed
engine.setProperty('rate', 150)  # Lower = slower, higher = faster
engine.setProperty('volume', 0.9)  # Range: 0.0 to 1.0

engine.say('Hello, I am your male voice assistant')
engine.say('What can I help you with?')
engine.runAndWait()

try:
    with sr.Microphone() as source:
        print('listening...')
        voice = listener.listen(source)
        command = listener.recognize_google(voice)
        command = command.lower()
        if 'hey vocal' in command:
            print(command)
except:
    pass

Key Notes: #

• The voice index (like voices[1]) might vary on your system—use the earlier print snippet to find the correct one, or paste the exact voice ID string instead of the index.
• If no male voice shows up in the list, install one:
  • Windows: Go to Settings → Time & Language → Speech → Add voices, then select a male English voice.
  • macOS: Open System Preferences → Accessibility → Speech, then pick a male voice from the dropdown.
  • Linux: Install additional espeak voices (e.g., espeak-ng packages), then check available options with espeak --voices.

That should get your assistant talking in a male voice right away!

内容的提问来源于stack exchange，提问作者Aniket M