Voice demo audio

Drop a small (<100KB) WAV file named sample.wav in this directory. The voice demo (/demos/voice) fetches it client-side and POSTs to the transcription endpoint so the flow works without mic permissions.

Expected content: an audio clip speaking the phrase "What is the weather in Tokyo?" — the demo caption advertises that phrase to the user, and the bundled QA checklist + E2E spec assert the transcribed text contains "weather" and/or "Tokyo".

Generate locally, for example:

• macOS: say -o sample.aiff "What is the weather in Tokyo?" && ffmpeg -i sample.aiff -ar 16000 -ac 1 sample.wav
• Linux: espeak-ng -w sample.wav "What is the weather in Tokyo?"
• Windows: PowerShell System.Speech.Synthesis.SpeechSynthesizer → SetOutputToWaveFile

Target: 16kHz mono, 3-5s duration, <100KB.