Get streaming transcription WebSocket URL

Returns the WebSocket URL and connection details for real-time audio transcription. The returned URL can be used to establish a WebSocket connection for streaming audio data and receiving transcribed text in real-time.

Audio Requirements:

• Sample Rate: 16kHz
• Encoding: PCM 16-bit little-endian
• Channels: Mono (1 channel)

Pricing: $0.01 per minute ($0.60 per hour)