[Demo] Converting audio demo to speech-to-text-to-speech #861
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chr-hertel
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Pull Request Overview
This PR converts the audio demo from a simple audio bot to a speech-to-text-to-speech system with RAG capabilities on Symfony Blog content. The changes enable voice-based conversations where user speech is transcribed, processed by an agent with access to Symfony blog information, and responses are converted back to speech.
- Adds text-to-speech conversion for assistant responses using OpenAI's TTS API
- Enhances
BinaryResultto support explicit MIME type specification in data URIs - Updates the audio demo UI to play assistant responses as audio instead of displaying text
Reviewed Changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
src/platform/src/Result/BinaryResult.php |
Added optional mimeType parameter to toDataUri() method |
src/platform/src/Result/DeferredResult.php |
Updated method name from asBase64() to asDataUri() with MIME type support |
src/platform/tests/Result/BinaryResultTest.php |
Added test coverage for explicit MIME type in data URI generation |
examples/huggingface/text-to-image.php |
Updated method call to use renamed asDataUri() |
demo/src/Audio/Chat.php |
Implemented TTS for assistant responses and audio metadata storage |
demo/templates/components/audio.html.twig |
Updated template to render audio player for assistant messages |
demo/config/packages/ai.yaml |
Enhanced prompts and descriptions for voice assistant behavior |
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…sult` for clarity and add optional mimeType arg (chr-hertel) This PR was merged into the main branch. Discussion ---------- [Platform] Rename `asBase64` to `asDataUri` on `DeferredResult` for clarity and add optional mimeType arg | Q | A | ------------- | --- | Bug fix? | no | New feature? | no | Docs? | no | Issues | | License | MIT Just more consistent and convenient, see #861 Commits ------- df13cce Rename `asBase64` to `asDataUri` on `DeferredResult` for clarity and add optional mimeType arg
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Converting the audio bot demo to speech-to-text-to-speech with subagent for RAG on Symfony Blog.
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