# NousResearch/hermes-agent · TTS Opus encoding quality fixes for Telegram voice

## Open now

- Nothing open on GitHub.

These issues and pull requests address suboptimal Opus audio encoding in TTS output, specifically targeting quality loss in Telegram voice messages. A related fix addresses platform-aware TTS delivery logic and a memory filtering concern.

## TL;DR

- 5 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #73508. Verify it addresses your case.
- **Recommended:** read PR #73508 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-73508`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.40`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #18818: TTS: Suboptimal Opus encoding for Gemini/Edge TTS causes quality loss in Telegram voice messages

## Prior & competing PRs

- **#73508: fix(gateway): platform-aware auto-TTS voice delivery (opus platforms, streamed/global gap, captions)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `gateway/platforms/base.py`, `gateway/run.py`, `plugins/platforms/feishu/adapter.py`, `plugins/platforms/matrix/adapter.py`, `plugins/platforms/telegram/adapter.py`, `tests/gateway/test_auto_voice_reply_format.py`, `tests/gateway/test_base_auto_tts_output_format.py`, `tests/gateway/test_matrix_voice.py`, `tests/gateway/test_telegram_voice_caption_markdown.py`, `tests/gateway/test_voice_command.py`, `tests/tools/test_tts_opus_routing.py`, `tools/tts_tool.py`
- **#18861: fix(tts): improve Opus encoding quality for Telegram voice messages**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `f440a44753`, `#73508`
- **#27472: fix(memory): filter Hindsight auto-retain noise**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `09d66037f8f7bc5bd879ed8128273fb6780a009f`
- **#30066: fix(tts): optimize Opus output for Telegram voice**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `f440a44753`, `#73508`, `#62040`, `#73508`

## Fix status

- Merged to main in PR #73508 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-07-28`.
- Subsystem: `agent`