[BUG] Voice input in Claude Code chat does not respect accessibility.voice.speechLanguage setting (Russian / non-English languages)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Description:

When using the microphone button in Claude Code's chat panel and speaking Russian, the speech is transcribed in Latin characters (English phonetics) instead of Cyrillic, even when the VS Code Speech language is configured to Russian.

Steps to reproduce:

Install VS Code Speech extension (Microsoft)
Install "Russian (Russia) language support for VS Code Speech" extension
Set "accessibility.voice.speechLanguage": "ru-RU" in settings.json
Open Claude Code chat panel and click the microphone button
Speak Russian
Expected behavior:

Russian speech is transcribed as Cyrillic text in the chat input.

Actual behavior:

Russian speech is transcribed as Latin characters (e.g., "privet" instead of "привет").

Additional context:

Editor dictation (Ctrl + Alt + V) works correctly in Russian — Cyrillic text appears in the editor.
The issue is specific to Claude Code's chat microphone, which appears to use a different speech recognition mechanism than VS Code Speech.
Environment:

OS: Windows 11
VS Code Speech: v0.5.0
Claude Code: latest

What Should Happen?

Description:

When using the microphone button in Claude Code's chat panel and speaking Russian, the speech is transcribed in Latin characters (English phonetics) instead of Cyrillic, even when the VS Code Speech language is configured to Russian.

Steps to reproduce:

Install VS Code Speech extension (Microsoft)
Install "Russian (Russia) language support for VS Code Speech" extension
Set "accessibility.voice.speechLanguage": "ru-RU" in settings.json
Open Claude Code chat panel and click the microphone button
Speak Russian
Expected behavior:

Russian speech is transcribed as Cyrillic text in the chat input.

Actual behavior:

Russian speech is transcribed as Latin characters (e.g., "privet" instead of "привет").

Additional context:

Editor dictation (Ctrl + Alt + V) works correctly in Russian — Cyrillic text appears in the editor.
The issue is specific to Claude Code's chat microphone, which appears to use a different speech recognition mechanism than VS Code Speech.
Environment:

OS: Windows 11
VS Code Speech: v0.5.0
Claude Code: latest

Error Messages/Logs

Steps to Reproduce

Description:

When using the microphone button in Claude Code's chat panel and speaking Russian, the speech is transcribed in Latin characters (English phonetics) instead of Cyrillic, even when the VS Code Speech language is configured to Russian.

Steps to reproduce:

Install VS Code Speech extension (Microsoft)
Install "Russian (Russia) language support for VS Code Speech" extension
Set "accessibility.voice.speechLanguage": "ru-RU" in settings.json
Open Claude Code chat panel and click the microphone button
Speak Russian
Expected behavior:

Russian speech is transcribed as Cyrillic text in the chat input.

Actual behavior:

Russian speech is transcribed as Latin characters (e.g., "privet" instead of "привет").

Additional context:

Editor dictation (Ctrl + Alt + V) works correctly in Russian — Cyrillic text appears in the editor.
The issue is specific to Claude Code's chat microphone, which appears to use a different speech recognition mechanism than VS Code Speech.
Environment:

OS: Windows 11
VS Code Speech: v0.5.0
Claude Code: latest

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Latest

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Description:

When using the microphone button in Claude Code's chat panel and speaking Russian, the speech is transcribed in Latin characters (English phonetics) instead of Cyrillic, even when the VS Code Speech language is configured to Russian.

Steps to reproduce:

Install VS Code Speech extension (Microsoft)
Install "Russian (Russia) language support for VS Code Speech" extension
Set "accessibility.voice.speechLanguage": "ru-RU" in settings.json
Open Claude Code chat panel and click the microphone button
Speak Russian
Expected behavior:

Russian speech is transcribed as Cyrillic text in the chat input.

Actual behavior:

Russian speech is transcribed as Latin characters (e.g., "privet" instead of "привет").

Additional context:

Editor dictation (Ctrl + Alt + V) works correctly in Russian — Cyrillic text appears in the editor.
The issue is specific to Claude Code's chat microphone, which appears to use a different speech recognition mechanism than VS Code Speech.
Environment:

OS: Windows 11
VS Code Speech: v0.5.0
Claude Code: latest