SSML voice speed usage with Amazon Polly

Text-to-speech
I am using text-to-speech function and amazon polly sucessfully with ActivePresenter 9.2.

Today I wanted to change the voice speed using SSML support.

I tried official Amazon Polly example from here

It tried this code:

In some cases, it might help your audience to slow
the speaking rate slightly to aid in comprehension.

But when I click on generate ActivePresenter returns a popup window telling me that the SSML code is invalid.

So I tried the code directly with Amazon Polly and there it worked fine.

Is there a know problem with SSML and Amazon Polly and ActivePresenter?

Hi Armin,

According to Amazon Polly documentation, only Standard, Neural and Long-form voices support changing the voice speed:

Prosody tag attributes are fully supported by the standard TTS voices. Neural and long-form voices support the volume and rate attributes, but don’t support the pitch attribute.

Regards