Doubao TTS (TTS + Podcast + ASR)

Overview

Doubao / Volcengine（豆包语音）is widely regarded as top-tier Chinese speech AI and is the quality-default provider for Liz's writing pipeline. Prefer 火山引擎豆包 over generic TTS alternatives unless blocked.

This skill covers three 豆包语音 products: TTS (text→speech for article audio), Podcast (AI dual-speaker conversation), and ASR (speech→text with optional diarization). On the new console, one API Key authenticates across these services via X-Api-Key. Endpoints and resource IDs still differ per product.

ElevenLabs has a cleaner HTTP API but weaker preferred voice/model quality for this workflow — last-resort fallback only (elevenlabs-tts). Do not choose it for convenience.

Onboarding (new console — preferred)

Do not start on the old console for new setups — it is harder to navigate. Use the new 豆包语音 console:

Open the 火山引擎豆包语音新版控制台.
Top up / activate the speech products you need (TTS, ASR, Podcast, etc.).
Create or copy a single API Key from the new console's API Key management.
Store it as DOUBAO_API_KEY (canonical) in the writing-profile secrets path below. Alias DOUBAO_SPEECH_API_KEY / legacy DOUBAO_TTS2_API_KEY are accepted.
Hand the key to the agent. If auth or product routing is unclear, also hand the 豆包语音产品简介 / 能力总览文档 (or the relevant API page from References / 参考文献).

One key, many services: After topping up on the new console, that API Key is the credential for TTS, ASR (speech→text), Podcast generation, and related 豆包语音 calls that accept X-Api-Key. You no longer need a separate App ID + Access Token pair for new-console workflows.

Existing bundled scripts (tts-generate.py, podcast-generate.py, asr-transcribe.py) still read the legacy App ID / Access Token env vars and old-console header shapes. Keep those vars populated until scripts are migrated; for new agent code prefer DOUBAO_API_KEY + X-Api-Key.

When to Use

TTS: Liz asks to turn a writing project, final.md, essay, or lizliz.xyz post into spoken audio (豆包 / 火山引擎 / ByteDance TTS).
Podcast: Liz asks to turn an article, TXT, URL, or topic into a dual-speaker AI podcast (豆包语音播客大模型). Separate product — activate via the new console (legacy activation deep-link also listed in References).
ASR: Liz asks to transcribe MP3 / WAV / OGG / voice memo / video audio to verbatim text (prefer Flash ASR).
Debugging Doubao voices, payloads, article-audio placement, lizliz.xyz audio links, or ASR quality.

Don't use for:

ElevenLabs-first generation → elevenlabs-tts
Music tagging / source separation / MIDI / beat detection → separate SAMI / 智能K歌 product lines (see references/volcengine-audio-ecosystem.md)
Real-time S2S voice agents → 端到端实时语音大模型 (out of scope; see References)

Core rules

Do not read Markdown aloud. Strip YAML, heading markers, emphasis, footnotes, table pipes, HRs, raw URLs, images, code fences unless the content itself must be spoken.
Do not narrate References / Footnotes by default. Stop before References / 参考资料 / Footnotes / 脚注 / Sources / 引用. Source appendix audio only if Liz asks.
Keep the article voice. Preserve Chinese punctuation rhythm, paragraph breaks, quotes, and English technical terms.
Skip multi-voice smoke tests when Liz already chose the default.
Default voice: zh_female_vv_uranus_bigtts (Vivi2.0) unless Liz picks another or quota blocks.
Production TTS route: verified V1 https://openspeech.bytedance.com/api/v1/tts with cluster: volcano_tts. V3 streaming is the migration/realtime path, not the article default.
Prefer new-console DOUBAO_API_KEY for new work; keep legacy App ID / Access Token only for existing scripts or V1 Bearer payloads until migrated.
ElevenLabs last resort only — quota/auth/platform failure, or explicit request. Keep provider visible in filenames/manifests.
Start from this skill when Liz mentions Doubao TTS / article audio (skill_view / registry) — do not broad-search buried notes first.

Environment contract

Secrets stay out of this file. Record variable names and paths only.

Canonical secrets + symlinks:

/home/ubuntu/.hermes/secrets/doubao-tts.env
/home/ubuntu/.hermes/secrets/elevenlabs.env
/home/ubuntu/.hermes/profiles/writing/.env.d/*.env -> /home/ubuntu/.hermes/secrets/*.env
/home/ubuntu/.hermes/profiles/trading/.env.d/*.env -> /home/ubuntu/.hermes/secrets/*.env
/home/ubuntu/.hermes/.env.d/*.env -> /home/ubuntu/.hermes/secrets/*.env

Also mirror into profile .env when convenient (older scripts only source .env). New scripts should load .env and .env.d/*.env.

Writing-profile home: /home/ubuntu/.hermes/profiles/writing/.env

Preferred: single API Key (new console)

DOUBAO_API_KEY=...                 # canonical — X-Api-Key for TTS / ASR / Podcast (new console)
# accepted aliases (same value):
DOUBAO_SPEECH_API_KEY=...
DOUBAO_TTS2_API_KEY=...            # historical name from TTS 2.0 samples; keep as alias

Resolution order for new code: DOUBAO_API_KEY → DOUBAO_SPEECH_API_KEY → DOUBAO_TTS2_API_KEY.

Optional (shared): DOUBAO_TTS_CLUSTER=volcano_tts, DOUBAO_TTS_VOICE_TYPE=zh_female_vv_uranus_bigtts.

Legacy auth (old console) — existing scripts / V1 HTTP

Deprecated for new setups. Keep populated while tts-generate.py, podcast-generate.py, and asr-transcribe.py still expect them.

DOUBAO_TTS_APP_ID=...              # old console App ID → X-Api-App-Key / X-Api-App-Id / V1 app.appid
DOUBAO_TTS_ACCESS_TOKEN=...        # old Access Token → X-Api-Access-Key / V1 Authorization: Bearer; …
DOUBAO_TTS_SECRET_KEY=...          # optional; some SDK variants

Aliases (compat): VOLCENGINE_TTS_*, VOLC_TTS_*.

Path	Auth shape
New console	`X-Api-Key: $DOUBAO_API_KEY` alone (ASR Flash, TTS V3, and related new-console APIs)
Old console / current scripts	`X-Api-App-Key`/`X-Api-App-Id` + `X-Api-Access-Key`, or V1 `Authorization: Bearer; <token>` + JSON `app.appid`/`app.token`

Do not put the API Key into the V1 Bearer; header or the Access Token into X-Api-Key interchangeably — formats differ.

Shell export gotcha — plain source .env may not export to child Python:

set -a; . /home/ubuntu/.hermes/profiles/writing/.env; set +a

Presence check (no secret dump):

python3 - <<'PY'
import os, re
for name in sorted(k for k in os.environ if re.search(r'(DOUBAO|VOLC|TTS)', k)):
    print(f"{name}=<set>")
PY

If neither DOUBAO_API_KEY (or aliases) nor legacy App ID / Access Token is set: stop. Do not fall back to Edge/OpenAI or claim Doubao audio was generated.

TTS (文字→语音)

V1 HTTP — production default

Verified working for article audio. Official docs now list this under historical/小模型 docs, but the endpoint remains active and is Liz's reliable route from this server. Full parameter notes: V1 HTTP API.

This path still uses legacy App ID + Access Token in the JSON body and Authorization: Bearer; <AccessToken> — not DOUBAO_API_KEY / X-Api-Key. Bundled tts-generate.py matches this shape.

POST https://openspeech.bytedance.com/api/v1/tts
Authorization: Bearer; <AccessToken>
Content-Type: application/json

(Bearer; with semicolon is intentional — official format.)

{
  "app": {"appid": "APPID", "token": "TOKEN", "cluster": "volcano_tts"},
  "user": {"uid": "unique_user_identifier"},
  "audio": {
    "voice_type": "zh_female_vv_uranus_bigtts",
    "encoding": "mp3",
    "speed_ratio": 1.0,
    "volume_ratio": 1.0,
    "pitch_ratio": 1.0
  },
  "request": {
    "reqid": "uuid",
    "text": "plain text",
    "text_type": "plain",
    "operation": "query",
    "with_frontend": 1
  }
}

Success: code == 3000; audio in base64 data. Unique reqid per call (UUID).

Limits: Official small-model docs cite ~1024 UTF-8 bytes per request; HTTP also has a ~60s RPC timeout. For Liz's bigtts App, practical safe chunk size is ~1800–2000 characters. Chunks of 5000+ often fail with code:3031 / RPC timeout.

V3 / TTS 2.0 streaming — migration & realtime

Prefer for realtime / streaming text; keep V1 for batch article audio until a protocol helper is wired into scripts.

Endpoint	Role
`wss://openspeech.bytedance.com/api/v3/tts/bidirection`	Bidirectional stream (LLM token → audio)
`wss://openspeech.bytedance.com/api/v3/tts/unidirectional/stream`	Full text in, audio stream out (WS)
`https://openspeech.bytedance.com/api/v3/tts/unidirectional`	HTTP Chunked unidirectional
`https://openspeech.bytedance.com/api/v3/tts/unidirectional/sse`	HTTP SSE unidirectional

Bidirectional headers (new console):

X-Api-Key: $DOUBAO_API_KEY
X-Api-Resource-Id: seed-tts-2.0
X-Api-Connect-Id: <uuid>
X-Control-Require-Usage-Tokens-Return: *

(DOUBAO_SPEECH_API_KEY / DOUBAO_TTS2_API_KEY aliases resolve to the same header value.)

Resource IDs: seed-tts-2.0 / seed-tts-1.0 / seed-tts-1.0-concurr / seed-icl-2.0 / seed-icl-1.0 (+ concurr). Full payload, additions (disable_markdown_filter, subtitles, dialects), and async long-text (/api/v3/tts/submit|query) → references/tts-streaming-v3.md. Official pages: 双向流式 TTS 2.0, V3 HTTP Chunked/SSE.

Known voices

Smoke-test voices on the current App rather than trusting a guide blindly. Common comparison set:

voice_type	Notes
`zh_female_vv_uranus_bigtts`	Default Vivi2.0 — model `doubao-seed-tts-2.0`; do not send `emotion`/`neutral` (ignored)
`zh_female_xueayi_saturn_bigtts`	薛艾依 / 绘本艾依 — observed working on V1
`zh_female_wanwanxiaohe_moon_bigtts`	Prior auth/resource mismatch — retest after package change
`zh_female_shuangkuaisisi_moon_bigtts`	Prior auth/resource mismatch — retest after package change

Vivi defaults: speed 1.0, volume 1.0, sample rate 24000, format mp3. If too lively, try speed 0.98 after a baseline at 1.0.

Discover voices via console or OpenAPI ListSpeakers / ListBigModelTTSTimbres.

Text cleaning checklist

MP3 is baked — clean before synthesize. Work in memory or /tmp; never modify the source manuscript for TTS.

Strip YAML frontmatter (---\n...\n---).
Cut from ## References / 参考资料 / Footnotes / 脚注 / Sources / 引用 / Claim Check onward.
Strip all HTML (<a id>, <span>, etc.). Leakage was read as "IA Intro".
Strip citation links entirely: [N](#ref-N) → remove (not bare N).
Strip MD: #, **, *, [text](url)→text, images, ---, backticks, >, [^N].
Strip top audio links ([收听音频版...](...)).
Save cleaned text under /tmp for audit.

Automated: scripts/strip-for-tts.py.

Article audio workflow

Skill dir:

SKILL_DIR="$HOME/.hermes/profiles/writing/skills/media/doubao-tts"
VENV_PY="/home/ubuntu/.hermes/hermes-agent/venv/bin/python3"

Clean: python3 "$SKILL_DIR/scripts/strip-for-tts.py" <final.md> /tmp/<slug>-tts.txt
Generate (chunk → 2 parts under CF 25 MiB):
python3 "$SKILL_DIR/scripts/tts-generate.py" /tmp/<slug>-tts.txt /tmp/<slug>-tts/ <slug>
→ <slug>-part1.mp3, <slug>-part2.mp3. Merge if total < 25 MiB:
ffmpeg -y -i "concat:...-part1.mp3|...-part2.mp3" -c copy /tmp/<slug>-tts/<slug>.mp3
Place site audio: public/audio/articles/<slug>/<slug>.mp3 (or project convention).
Link near top: [收听音频版](/audio/articles/<slug>/<slug>.mp3).
Verify size, duration, link; push writing + site repos (writing Action syncs Markdown, not arbitrary local audio).

Audio-first stub (正文 not ready): minimal final.md with frontmatter + placeholder + audio link; copy MP3 into site public/audio/articles/; light sync checks only — not a full publish audit.

Multi-part source narration: boundary files tts-part-N.txt; text_type: plain; one MP3 + manifest per segment; ffprobe every file.

Chunking & quality

Max ~2000 chars / request; split on \n\n.
Concat: ffmpeg -f concat -safe 0 -i list.txt -c copy out.mp3.
Group into 2+ parts for CF Pages 25 MiB/file limit.
Prefer native Doubao bitrate (~160 kbps). Floor for publish: 96 kbps. Re-encode only if over limit: ffmpeg -i in.mp3 -codec:a libmp3lame -b:a 96k -ac 1 out.mp3. See references/cf-pages-size-limit.md.

Podcast (AI 播客)

Separate product from TTS. Full protocol: references/podcast-api.md. Session traps: references/podcast-session-learnings.md. Publish: references/lizliz.xyz-podcast-page.md. Official WS protocol: 播客 API websocket-v3.

wss://openspeech.bytedance.com/api/v3/sami/podcasttts

New console (preferred for new clients):

X-Api-Key: $DOUBAO_API_KEY
X-Api-Resource-Id: volc.service_type.10050
X-Api-App-Key: aGjiRDfUWi   # fixed product key (still required by protocol docs)
X-Api-Request-Id: <uuid>

Legacy / current podcast-generate.py headers:

X-Api-App-Id / X-Api-Access-Key / X-Api-Resource-Id: volc.service_type.10050
X-Api-App-Key: aGjiRDfUWi   # fixed

Binary frame message_type = 0b0001 (header byte1 0x14). Do not use TTS bidirectional 0b0011 → "unsupported message type (3)".

action	Mode
0	Long-text / URL summarize → dual dialogue (default)
3	Direct `nlp_texts` dialogue synthesize
4	`prompt_text` web-search summarize

Liz defaults (2026-07): action=0, mp3/24000/speech_rate=0, speakers dayi+mizai, random_order=false (male first), head+tail music on, AIGC watermarks off, strip MD first.

Default speakers: zh_male_dayixiansheng_v2_saturn_bigtts + zh_female_mizaitongxue_v2_saturn_bigtts. Alt pair: liufei + xiaolei. Official update (2026-03): TTS/ICL voices also allowed (same App as podcast); use speaker_info.speaker_additions for ICL model switches. New (2026-05): input_info.strict_audit.

Generate: $VENV_PY "$SKILL_DIR/scripts/podcast-generate.py" input.txt out.mp3
NLP-only transcript: scripts/extract-transcript.py (only_nlp_text). Prefer Flash ASR on the finished MP3 for subtitles (separate quota, matches actual audio).

ASR (语音→文字)

New console: same DOUBAO_API_KEY as TTS/Podcast (X-Api-Key). Legacy scripts: still use DOUBAO_TTS_APP_ID / DOUBAO_TTS_ACCESS_TOKEN with old header names.

Flash ASR — preferred ≤2h

One-shot; no submit/poll. Docs: 录音文件识别极速版 HTTP.

POST https://openspeech.bytedance.com/api/v3/auc/bigmodel/recognize/flash

New console headers:

X-Api-Key: $DOUBAO_API_KEY
X-Api-Resource-Id: volc.bigasr.auc_turbo
X-Api-Request-Id: <uuid>
X-Api-Sequence: -1

Legacy / current asr-transcribe.py headers:

X-Api-App-Key / X-Api-Access-Key / X-Api-Resource-Id: volc.bigasr.auc_turbo
X-Api-Request-Id: <uuid> / X-Api-Sequence: -1

{
  "user": {"uid": "<APP_ID>"},
  "audio": {"data": "<base64>"},
  "request": {
    "model_name": "bigmodel",
    "enable_itn": true,
    "enable_punc": true,
    "enable_ddc": false,
    "enable_speaker_info": true,
    "show_utterances": true
  }
}

URL mode: "audio": {"url": "https://..."} instead of data.

Param	Verbatim 逐字稿	Clean reading
`enable_ddc`	false (keep 嗯/啊/是吧)	true
`enable_punc`	true	true
`enable_itn`	true	true
`enable_speaker_info`	true for podcasts	as needed

Limits: ≤2h, ≤100 MB; WAV/MP3/OGG OPUS. Base64 inflates ~33% — prefer URL if raw > ~50 MB. Binary upload recommendation: keep under ~20 MB when possible.

Success header: X-Api-Status-Code: 20000000. Speaker in utterances[].additions.speaker.

Code	Meaning
20000000	Success
20000003	Silent audio
45000001	Invalid params
45000002	Empty audio
45000151	Unsupported format
55000031	Server busy
550xxxx	Internal error

Script: scripts/asr-transcribe.py (maps ASR "1"/"2" → dayi/mizai for default podcast order).

Flash does not support customer-service extras: enable_emotion_detection, enable_gender_detection, enable_lid, show_volume, show_speech_rate (removed from Flash; use Standard).

Standard ASR — >2h or emotion / gender / LID

POST .../api/v3/auc/bigmodel/submit
POST .../api/v3/auc/bigmodel/query

Resource IDs: volc.seedasr.auc (model 2.0) or volc.bigasr.auc (model 1.0). URL required (no base64). Docs: 录音文件识别标准版 HTTP. Feature matrix (emotion, diarization, ITN, etc.): 大模型录音文件识别能力表.

Emotion detection (enable_emotion_detection: true): Standard / streaming nostream / bidirectional-optimized ASR only. Labels: angry / happy / neutral / sad / surprise on utterance additions.emotion. Also: enable_gender_detection, enable_lid, show_volume, show_speech_rate.

Failure signatures

Signature	Meaning / action
`requested resource not granted`	App lacks voice/resource — change package or voice
`resource ID is mismatched with speaker related resource`	V3 resource/voice mismatch — use granted pair or V1
DNS fail `speech.volcengineapi.com`	Wrong host from this server — use `openspeech.bytedance.com`
`quota exceeded for types: text_words_lifetime`	Lifetime words gone — stop retries; refresh package or ElevenLabs
Podcast: event 150 then silence	Quota exhaustion (no error frame) — do not retry
`code:3031` / RPC timeout	Chunk too large — shrink under ~2000 chars
`40200002 DeniedAccess:IllegalToken` on SAMI	Wrong product line — need SAMI token, not TTS token
websockets `extra_headers` TypeError	Use `additional_headers` (websockets ≥14)

Quota APIs exist in console OpenAPI (QuotaMonitoring, UsageMonitoring, ResourcePacksStatus) — not wired in scripts; treat runtime quota errors as authoritative.

Beyond this skill

豆包语音 products here: TTS, Podcast, ASR. Adjacent (separate auth / out of default scripts):

声音复刻 ICL 1.0/2.0 (seed-icl-*)
异步长文本 TTS (/api/v3/tts/submit|query)
端到端实时语音大模型, 语音同传, 语音妙记
SAMI MusicTagging / 音源分离, 智能K歌, 豆包音乐模型

Details: references/volcengine-audio-ecosystem.md. Search Volcengine docs before assuming credential reuse.

Common Pitfalls

Text & cleaning

Feeding raw final.md → reads MD/HTML/refs aloud.
HTML <a id> leakage (#1 artifact) — strip all tags.
Citation [N](#ref-N) left as bare numbers (#2) — remove entirely.
Partial-TTS requests still fed full article — trim first, then strip.

Auth & protocol

Swapping DOUBAO_API_KEY with V1 Access Token (or putting Access Token in X-Api-Key) — formats are not interchangeable.
Starting new setups on the old console when the new console is available.
Podcast message_type=0b0011 copied from TTS bidirectional samples.
ASR headers ≠ TTS V1 Authorization: Bearer; — use X-Api-* (new: Key alone; legacy: App-Key + Access-Key).
Wrong ASR resource ID (volc.bigasr.auc_turbo vs volc.seedasr.auc vs volc.bigasr.auc).
Assuming Flash ASR supports emotion detection — it does not.
SAMI/MusicTagging with TTS credentials → 40200002.

Runtime & publish

Scripts path: use $SKILL_DIR/scripts/, not writing-repo scripts/.
Podcast/ASR need Hermes venv Python (websockets).
Regenerating good audio only for provenance without being asked.
Claiming deploy before site has both MP3 + Markdown link and CF Pages actually succeeded (CI green ≠ Pages deployed; 25 MiB trap).
Expecting bundled scripts to read DOUBAO_API_KEY already — they still use legacy App ID / Access Token until migrated.

Verification Checklist

Scripts & local references

SKILL_DIR="$HOME/.hermes/profiles/writing/skills/media/doubao-tts"
VENV_PY="/home/ubuntu/.hermes/hermes-agent/venv/bin/python3"

Path	Role
`scripts/strip-for-tts.py`	MD → speakable plain text
`scripts/tts-generate.py`	V1 chunked TTS → 2-part MP3 (legacy App ID / token)
`scripts/podcast-generate.py`	Dual-speaker podcast WS (legacy headers)
`scripts/extract-transcript.py`	Podcast NLP-only transcript JSON
`scripts/asr-transcribe.py`	Flash ASR → subtitle JSON (legacy headers)
`references/podcast-api.md`	Podcast API + Liz defaults
`references/podcast-session-learnings.md`	Protocol/quota/venv traps
`references/tts-streaming-v3.md`	V3/TTS 2.0 streaming matrix
`references/volcengine-audio-ecosystem.md`	SAMI / emotion / product boundaries
`references/cf-pages-size-limit.md`	25 MiB diagnostic
`references/lizliz.xyz-podcast-page.md`	Site podcast publish
`references/2026-06-17-prigogine-audio.md`	Historical session notes

Split from doubao-elevenlabs-tts. Fallback skill: elevenlabs-tts.

References / 参考文献

Console & onboarding

火山引擎豆包语音新版控制台总览 — 推荐入口：充值/开通服务、创建并复制单一 API Key；新账号不要走旧控制台。
豆包语音产品简介与能力总览 — 产品体系与场景说明；拿不准该开哪个服务时把这篇甩给 AI。
播客服务旧版开通深链（service/10028） — 历史开通入口；新设置优先用新版控制台总览代替。

TTS

豆包语音合成 V1 HTTP（小模型/历史非流式） — Liz 当前文章音频生产路径：/api/v1/tts、Authorization: Bearer;、base64 音频、reqid 唯一性。
双向流式语音合成 WebSocket（TTS 2.0） — wss://.../api/v3/tts/bidirection；X-Api-Key + seed-tts-2.0；会话事件与 audio_params。
HTTP Chunked / SSE 单向流式 V3 — 一次性送全文、流式出音频；资源 ID 与计费（seed-tts-* / seed-icl-*）对照表。
豆包大模型音色列表（含 2.0） — 查 voice_type / speaker；播客也可选用同表 TTS 音色（需同 App 授权）。

ASR

录音文件识别极速版 HTTP（Flash） — 一次请求返回结果；volc.bigasr.auc_turbo；新控制台仅需 X-Api-Key；明确不含情绪/性别等客服字段。
录音文件识别标准版 HTTP（submit/query） — >2h 或需 emotion/gender/LID；volc.seedasr.auc / volc.bigasr.auc。
大模型语音识别能力对照表 — 流式 vs 文件、情绪检测、说话人分离、ITN/顺滑等功能矩阵。

Podcast

语音播客大模型 API（websocket-v3） — podcasttts 端点、二进制帧、action 0/3/4、strict_audit、event 150–363、发音人对。

Change log

2026-07-30 nuance → v1.2.0

Added Onboarding for new console: top up → single API Key → one key for TTS/ASR/Podcast; prefer new console over old.
Promoted canonical DOUBAO_API_KEY (DOUBAO_SPEECH_API_KEY / DOUBAO_TTS2_API_KEY aliases); moved App ID / Access Token under Legacy auth.
Overview: 豆包语音 framed as top-tier Chinese speech AI.
Replaced bare doc bookmarks with annotated References / 参考文献; linked console + product overview + API pages inline where cited.
Documented new-console header shapes alongside legacy script headers; noted scripts not yet migrated off legacy env vars.
Pitfalls/checklist updated for single-key vs legacy mismatch.

2026-07-30 audit → v1.1.0

Restructured to Hermes best-practice shape: Overview, When to Use (+ don'ts), product sections, organized Pitfalls, Verification Checklist.
Completed frontmatter: version, author, license, tags, related_skills; description now starts with Use when.
Verified V1/Flash/Standard/Podcast endpoints against official docs; confirmed Bearer; and Flash resource volc.bigasr.auc_turbo.
Added V3 streaming matrix (bidirectional / unidirectional WS / HTTP Chunked / SSE) + references/tts-streaming-v3.md.
Corrected emotion detection: Standard/streaming only — not Flash ASR.
Documented new vs old console auth (X-Api-Key alone vs App-Key + Access-Key).
Podcast: noted strict_audit, aigc_metadata, TTS/ICL speakers + speaker_additions (official 2026-03/05 updates).
Noted V1 listed under historical docs but remains production path; official 1024-byte small-model limit vs observed ~2k-char chunk practice.
Flagged QuotaMonitoring/UsageMonitoring OpenAPI existence; adjacent products (async long-text, S2S, 同传, 妙记, ICL).
Script paths confirmed under media/doubao-tts; venv path documented; strip script aligned to multi-name References cut.

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