azure v2 speech synthesis error: Connection was closed by the remote host. Error code: 4429. Error details: The request is throttled because you have exceeded the concurrent request limit allowed for your sub USP state: TurnStarted.

[hybfly]

上周还是好好的，今天突然报这样的错误：azure v2 speech synthesis error: Connection was closed by the remote host. Error code: 4429. Error details: The request is throttled because you have exceeded the concurrent request limit allowed for your sub USP state: TurnStarted.