[BUG] Voice mode transcription silently fails on macOS Terminal.app

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?

After holding Space (voice mode active, language set to French via /config), "Listening" appears then "voice process" briefly, but no text is inserted. Only spaces accumulated during the hold remain in the input field. Occasionally "no speech recognized" appears instead.

What Should Happen?

The transcribed speech should be inserted in the input field after releasing Space.

Error Messages/Logs

no speech recognized

Steps to Reproduce

1. Set voice language to French via /config
2. Enable voice mode with /voice
3. Click outside the input field to shift focus
4. Hold Space — "Listening" appears
5. Speak while holding Space
6. Release Space — "voice process" appears briefly
7. Nothing is inserted

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.84 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

• Microphone permission granted for Terminal.app (System Preferences → Privacy → Microphone)
• Internal microphone works correctly (level meter shows activity in Sound settings)
• macOS 13.7.8 Ventura (build 22H730), Node.js v24.14.0
• Bug identified with the assistance of Claude Code (claude-sonnet-4-6)