Pocket TTS repeats itself.

[mikebayus]

Issue: Pocket TTS Repeats Items, Sentences, and Mispronounces URLs

Environment

• Addon: Pocket TTS for NVDA
• **NVDA Version: NVDA v2026.1 beta 13
• **Windows Version: windows 11 latest build

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Summary of Problems

Pocket TTS is producing repeated or incorrect speech output in several scenarios:

1. Repeats the last item in a list

When navigating a directory or any list with the arrow keys, Pocket TTS repeats itself on the final item.

Example:
With three items in a folder, pressing Down Arrow results in:

• “Books, 1 of 3”
• “Songs, 2 of 3”
• “Pictures, 3 of 3 of 3”

The extra “of 3” appears consistently on the last item.

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2. Random double-speaking

Pocket TTS sometimes repeats entire sentences or phrases even when NVDA only sends one utterance.

This happens intermittently during normal navigation or reading.

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3. Mispronunciation of URLs (too many ‘W’s)

When reading URLs, Pocket TTS outputs an exaggerated number of “W” sounds.

Example:
Instead of “www.youtube.com,” it says something like:
“double you double you double you double you double you dot youtube dot com.”

This occurs with multiple websites, not just YouTube.

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Steps to Reproduce

1. Open any folder with multiple items.
2. Navigate using Up/Down Arrow keys.
3. Observe repeated speech on the final item.

For URL issue:

1. Navigate to a webpage or read a link in NVDA.
2. Pocket TTS outputs excessive “W” repetitions.

For double-speaking:

1. Use Pocket TTS as your active synthesizer.
2. Perform normal reading or navigation.
3. Occasional repeated sentences occur.

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Expected Behavior

• Each list item should be spoken once, without extra “of X” appended.
• Sentences should not repeat unless NVDA sends a second utterance.
• URLs should be spoken with the correct number of “W”s.

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Actual Behavior

• Last list item is spoken with an extra “of X.”
• Random double-speaking occurs.
• URLs are spoken with excessive “W”s.

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Additional Notes

• These issues do not occur with other synthesizers on the same system.
• Behavior is consistent across multiple folders and applications.
• Let me know if logs, debug output, or audio samples would help.

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[mikebayus]

Additional findings:
I’ve discovered that NVDA’s setting “Trust voice's language when processing characters and symbols” has a major impact on the hallucination/repetition behavior described in this issue. I had this option enabled, and after disabling it, hallucinations across multiple Pocket TTS voices dropped by roughly 70%.

This wasn’t limited to a single voice — I observed the same improvement with several different Pocket TTS voices. I haven’t tested the built-in ones yet, but I suspect the effect may apply to all voices used through the add-on.

This might help narrow down where the interaction between NVDA and Pocket TTS is going wrong.