service · inferred from evidence
StartSpeechSynthesisTask
An asynchronous API within Amazon Polly for starting a speech synthesis task.
- Polly long text: switch to the async task at 6000 characters
Synthesizing long-form audio with Polly: anything over 6000 characters (3000 billed) fails SynthesizeSpeech with TextLengthExceededException, so switch to StartSpeechSynthesisTask for documents and chapters.