#8730 All error for edge-tts 403, message='Invalid response status', url='wss://speech.platform.bing.com/consumer/speech/synt

This is not a network or proxy problem: Microsoft changed the authentication logic of its free edge-tts interface, so the request signature (Sec-MS-GEC) submitted by v4.03 is no longer accepted and the server always returns 403. This problem was fixed in v4.16; v4.03 itself has no workaround.

Solution:

1. Download the latest full package (or the latest patch package) from https://pyvideotrans.com/downpackage and overwrite your current installation.
2. When overwriting, copy the complete contents of the package (sp.exe + the _internal folder + the videotrans folder); do not overwrite only sp.exe. Otherwise, you will get "module version too old" errors.
3. If old files remain and cause errors, delete every __pycache__ file and folder inside the old _internal folder, then overwrite again.
4. After upgrading, if you still use Edge-TTS heavily, go to Menu → Tools/Options → Advanced Options → Dubbing Settings, set EdgeTTS Max Concurrency to 1, and set Post-Dubbing Delay (s) to 5–10 to avoid being rate-limited and blocked again.
5. If a proxy is set in the main interface, create an empty edgetts-noproxy.txt in the software root directory to bypass it for Edge-TTS; otherwise, clear the proxy box.

Temporary alternative while upgrading: switch the TTS channel to Qwen3-TTS(Built-in) (supports Chinese/English and other languages, and supports cloning), ZipVoice, or gTTS.

Note: if you deployed from source rather than using the packaged build, run uv add git+https://github.com/rany2/edge-tts.git to update the edge-tts library directly; if that fails, run uv remove edge-tts first, then run the add command again.

Please refer to the related documentation:

• Edge-TTS (Free)
• Windows version download
• FAQ