AI-generated Answer for bazooka98
This is a common issue that many users have encountered with the ElevenLabs WebSocket API. The behavior you're experiencing is actually expected, but it can be confusing if you're not familiar with how the API is designed to work.
When using the WebSocket API for text-to-speech synthesis, the isFinal flag behaves differently than you might expect. Here's what's happening:
- Intermediate audio chunks will have
isFinal set to None.
- The final message, which should contain
isFinal: true, is only sent when you properly signal the end of the sequence.
The key to getting the isFinal: true message is in how you end your text input. Instead of using flush: true, you need to send an End of Sequence (EOS) message with an empty string as the text. Here's how to do it correctly:
- Send your text chunks as usual.
- After sending all your text, send a final message with an empty string:
{"text": ""}
This empty string message tells the server that you've finished sending text for that segment. In response, you should receive a final message where isFinal is true and the audio field is null.
If you're using flush: true with a space (" "), you're not triggering the proper end-of-stream behavior. This is why you're getting the full audio but not seeing the isFinal: true message.
To keep your WebSocket connection open for multiple text-to-speech generations during a session, you'll need to:
- Send an EOS message (
{"text": ""}) after each complete text segment.
- Handle the final response where
isFinal is true.
- Start the next text-to-speech generation by sending a new text chunk.
If you need to maintain a long-lived session, you might need to implement your own heuristic using flush messages and accumulating alignment data to determine when a chunk is complete without relying on the isFinal flag.
Remember, the WebSocket API is designed with the expectation that you'll close the connection (or segment it) when you're done sending a particular piece of text. This design allows you to get the final isFinal signal for each text segment.
If you continue to experience issues or need more specific guidance, please provide more details about your implementation, and we can offer more targeted assistance.
unique zinc
civic skiff