docs: iterate audio chunks in text-to-speech snippets - #749

🤖 I have created a release *beep* *boop*
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##
[7.8.1](v7.8.0...v7.8.1)
(2026-09-03)


### Bug Fixes

* **TextBuilder:** `ssml_to_deepgram()` now preserves a `<phoneme>`
pronunciation when its valid `ph` and `alphabet` attributes appear in
either order.
([#741](#741))
([7fd4b63](7fd4b63))
* **Credentials:** Explicitly passing `api_key=None` continues to
disable ambient `DEEPGRAM_API_KEY` lookup, which is important for
multi-tenant and test environments.
([#778](#778))
([e675990](e675990))
* **Credentials:** `DeepgramClient()` and `AsyncDeepgramClient()` now
resolve `DEEPGRAM_API_KEY` when constructed, so `load_dotenv()` can run
after importing the SDK. Closes
[#734](#734).
([#767](#767))
([ec362ec](ec362ec))
* **Custom transports:** Speak V2 WebSocket connections now honor
`transport_factory`, matching the routing behavior of other WebSocket
APIs for proxies, test doubles, and custom-hosted transports.
([#766](#766))
([0980663](0980663))


### Documentation

* **Transcription:** Clarified that Nova-3 assumes English when
`language` is omitted; non-English and multilingual audio require an
explicit language such as `fr` or `multi`.
([#771](#771))
([4574337](4574337))
* **Examples:** Added Listen V1 live microphone transcription with
optional `sounddevice`, device selection, bounded audio buffering,
transcript output, and clean Ctrl-C shutdown.
([#780](#780))
([08f0471](08f0471))
* **Examples:** Added a resilient Listen V1 live transcription pattern
with exponential backoff, reconnect-aware audio buffering, timestamp
continuity, and clean shutdown.
([#776](#776))
([96b2d11](96b2d11))
* **Examples:** Added an application-owned Voice Agent session recorder
that serializes received transcripts, function calls, and latency
reports as JSON while leaving consent, redaction, retention, and storage
policy to the application. Closes
[#775](#775).
([#781](#781))
([30ad152](30ad152))
* **Text-to-Speech:** Corrected streaming synthesis snippets to iterate
the response byte chunks instead of accessing a nonexistent `.stream`
attribute.
([#749](#749))
([178724e](178724e))

---
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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Greg Holmes <greg.holmes@deepgram.com>