[Bug]: SSML bookmark tag returning junk value with a specifc voice

[branaway]

What happened?

for

<speak version='1.0' xmlns="http://www.w3.org/2001/10/synthesis" xmlns:mstts="https://www.w3.org/2001/mstts" xml:lang='en-US'>
        <voice name='zh-CN-XiaoxiaoMultilingualNeural'>
anything <bookmark mark="hello"/>  anything
        </voice>
      </speak>

The bookmark event returned weird characters: 배萓罵

Other models worked fine, such as: zh-CN-XiaoyuMultilingualNeural.

How does the bookmark have anything to do with the voice....

Version

1.36.0 (Latest)

What browser/platform are you seeing the problem on?

Safari

Relevant log output

No response

[branaway]

I was using the East Asia region, FYI

[BrianMouncer]

@branaway do you see this happen with the none multilingual voices like zh-CN-XiaorouNeural?

@yulin-li Do you know of any open issue around book mark events an specific voices, other than the inherint limitation of the OpenAI whisper voice? I would expect any of our neural voices to work, but I'm not sure about the multilingual voices.

[branaway]

zh-CN-XiaorouNeural

no issue with that voice

[BrianMouncer]

zh-CN-XiaorouNeural

no issue with that voice

ok, poor data sample size, but that supports the idea that the multilingual voices may have an issue with the bookmark label.
I will follow up with our text to speech team, and see if they are aware of this.

In the meantime, you might try changing the bookmark label from hello, to either a number or some Chinese text that the multilingual engine would be less likely to mis-identify the source language of...

or

[branaway]

tried all various bookmarks in all kinds of symbols, languages. Did not work.

[ForrestGumb]

I can reproduce this issue. Will investigate.