curl https://api.openai.com/v1/audio/speech -H 'Authorization: Bearer $OPENAI_API_KEY' -d '{"model":"tts-1","input":"Hello","voice":"alloy"}' --output speech.mp3curl https://api.openai.com/v1/audio/speech -H 'Authorization: Bearer $OPENAI_API_KEY' -d '{"model":"tts-1","input":"Hello","voice":"alloy"}' --output speech.mp3