Sarvam STT/STTT WS implementation

[shreyas-sarvam]

Implemented a new Sarvam speech-to-text service which contains speech-to-text and speech-to-text-translate streaming websocket.

[markbackman]

Are these types defined in your python package by any chance?

[shreyas-sarvam]

Yes, these types are defined in the sarvamai package.
However, the rest of these classes aren't needed as they are handled internally by the package. I have updated the code accordingly.

[markbackman]

You'll want to include a set_language() function so that developers can change the language. Here's how this is done in Deepgram:

    async def set_language(self, language: Language):
        """Set the recognition language and reconnect.

        Args:
            language: The language to use for speech recognition.
        """
        logger.info(f"Switching STT language to: [{language}]")
        self._settings["language"] = language
        await self._disconnect()
        await self._connect()

Note the disconnect and reconnect which is needed to reinitialize the language. You may need that, but it's up to what your service requires to swap languages.

[markbackman]

Looking good so far. A few additional things:

1. Add a changelog entry, adding the new service
2. Update your foundational examples to use your STT service (07z*)

[codecov]

Codecov Report

❌ Patch coverage is 0% with 181 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/pipecat/services/sarvam/stt.py	0.00%	181 Missing ⚠️

Files with missing lines	Coverage Δ
src/pipecat/services/sarvam/stt.py	0.00% <0.00%> (ø)

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[shreyas-sarvam]

Looking good so far. A few additional things:

1. Add a changelog entry, adding the new service
2. Update your foundational examples to use your STT service (07z*)

I have made the changes you had requested. Looking forward to the next steps.

[markbackman]

LGTM! Thanks for working through the comments with me. Congrats 🎉