docs: enhance Volcengine section with detailed setup steps

- Add direct links to Create App and Service Credentials pages
- List specific models to enable (Doubao streaming/file recognition)
- Clarify APP ID + Access Token fields (Secret not needed)
- Update free tier info: 20 hours per app, renewable
- Add tip about best Chinese accuracy
- Update both English and Chinese versions

Made-with: Cursor

Author: XimilalaXiang

docs/guide/api-keys.md

@@ -9,7 +9,7 @@ This page walks you through obtaining API keys for each cloud-based ASR provider
 | Provider | Free Tier | Signup Link | Credit Card Required |
 |----------|-----------|-------------|---------------------|
 | [Soniox](#soniox) | Pay-as-you-go (~$0.12/hr streaming) | [soniox.com](https://soniox.com) | Yes |
-| [Volcengine](#volcengine) | Check console for trial credits | [console.volcengine.com](https://console.volcengine.com) | No |
+| [Volcengine](#volcengine) | 20 free hours per app (renewable) | [console.volcengine.com](https://console.volcengine.com) | No |
 | [ElevenLabs](#elevenlabs) | Pay-as-you-go ($0.39/hr realtime) | [elevenlabs.io](https://elevenlabs.io) | No |
 | [Mistral AI](#mistral-ai) | Free Experiment tier (rate-limited) | [console.mistral.ai](https://console.mistral.ai) | Yes |
 | [Gladia](#gladia) | 10 hours/month (recurring) | [gladia.io](https://www.gladia.io) | No |
@@ -41,22 +41,36 @@ This page walks you through obtaining API keys for each cloud-based ASR provider
 
 ## Volcengine
 
-**Website:** [console.volcengine.com](https://console.volcengine.com)
+**Website:** [volcengine.com](https://www.volcengine.com/product/speech)
 
-**Pricing:** Check the console for trial credits and pricing. Streaming ASR is billed per minute. Primarily targets the Chinese market.
+**Pricing:** Each app comes with **20 free hours** of ASR quota. When exhausted, you can create a new app to get another 20 hours. Paid plans are billed per minute.
+
+::: tip Best Chinese Accuracy
+Volcengine (Doubao / 豆包) has the lowest error rate for Chinese speech recognition among current providers. Highly recommended for Chinese content.
+:::
 
 **Steps:**
 
-1. Go to [console.volcengine.com](https://console.volcengine.com) and register (Chinese phone number required)
-2. Navigate to **语音技术 (Speech Technology)** → **实时语音识别 (Streaming ASR)**
-3. Activate the service and note your **AppKey**
-4. Go to **密钥管理 (Key Management)** to find your **Access Key**
-5. In DeLive, select **Volcengine** as provider, enter both `appKey` and `accessKey`
+1. Go to [console.volcengine.com](https://console.volcengine.com) and sign up (Chinese phone number required)
+2. Open the [Create App](https://console.volcengine.com/speech/app?opt=create) page
+3. Fill in **App Name** (e.g. "DeLive") and a brief **Description**
+4. Under **Capabilities**, check the following models:
+   - **豆包流式语音识别模型2.0** → select **小时版** (hourly)
+   - **豆包录音文件识别模型2.0** → select **标准版** (standard)
+   - **录音文件识别大模型** → select **标准版** (standard)
+5. Click **Create** to finish
+6. Go to the [Service Credentials](https://console.volcengine.com/speech/service/10039) page
+7. Copy **APP ID** (labeled ①) and **Access Token** (labeled ②). The third field (Secret) is **not needed**
+8. In DeLive, select **Volcengine** as provider, paste **APP ID** into the first field and **Access Token** into the second field
 
-**DeLive fields:** `appKey`, `accessKey`
+**DeLive fields:** `APP ID`, `Access Token`
 
 ::: warning China Region
-Volcengine registration typically requires a Chinese phone number and identity verification.
+Volcengine registration requires a Chinese phone number and identity verification. The console UI is in Chinese.
+:::
+
+::: tip Free Quota Renewal
+Each app gets 20 free hours. For personal use this easily lasts 1–2 months. When depleted, simply create a new app for another 20 hours of free quota.
 :::
 
 ---

docs/zh/guide/api-keys.md

@@ -9,7 +9,7 @@
 | 服务商 | 免费额度 | 注册链接 | 需要信用卡 |
 |--------|---------|---------|-----------|
 | [Soniox](#soniox) | 按量付费（流式约 $0.12/小时） | [soniox.com](https://soniox.com) | 是 |
-| [火山引擎](#火山引擎-volcengine) | 控制台查看试用额度 | [console.volcengine.com](https://console.volcengine.com) | 否 |
+| [火山引擎](#火山引擎-volcengine) | 每个应用 20 小时免费（可续） | [console.volcengine.com](https://console.volcengine.com) | 否 |
 | [ElevenLabs](#elevenlabs) | 按量付费（实时 $0.39/小时） | [elevenlabs.io](https://elevenlabs.io) | 否 |
 | [Mistral AI](#mistral-ai) | 免费实验层（有速率限制） | [console.mistral.ai](https://console.mistral.ai) | 是 |
 | [Gladia](#gladia) | **每月 10 小时免费**（持续） | [gladia.io](https://www.gladia.io) | 否 |
@@ -41,22 +41,36 @@
 
 ## 火山引擎 (Volcengine)
 
-**官网：** [console.volcengine.com](https://console.volcengine.com)
+**官网：** [volcengine.com](https://www.volcengine.com/product/speech)
 
-**计费：** 按分钟计费，请在控制台查看试用额度。主要面向中国市场。
+**计费：** 每个应用赠送 **20 小时**免费语音识别额度。用完后可重新创建应用获取新额度。付费按分钟计费。
+
+::: tip 中文识别最强
+火山引擎（豆包语音）的中文识别错误率在当前支持的所有服务商中最低，强烈推荐用于中文内容转录。
+:::
 
 **获取步骤：**
 
 1. 访问 [console.volcengine.com](https://console.volcengine.com) 注册（需要中国手机号）
-2. 导航到 **语音技术** → **实时语音识别**
-3. 开通服务，记下 **AppKey**
-4. 进入 **密钥管理**，获取 **Access Key**
-5. 在 DeLive 中选择 **火山引擎**，分别填入 `appKey` 和 `accessKey`
-
-**DeLive 字段：** `appKey`、`accessKey`
+2. 打开 [创建应用](https://console.volcengine.com/speech/app?opt=create) 页面
+3. 填写**应用名称**（如 "DeLive"）和**应用简介**
+4. 在**接入能力**中，勾选以下模型：
+   - **豆包流式语音识别模型2.0** → 选择 **小时版**
+   - **豆包录音文件识别模型2.0** → 选择 **标准版**
+   - **录音文件识别大模型** → 选择 **标准版**
+5. 点击**创建**完成
+6. 前往 [服务接口认证信息](https://console.volcengine.com/speech/service/10039) 页面
+7. 复制 **APP ID**（标记①）和 **Access Token**（标记②），第三个字段（Secret）**不需要**
+8. 在 DeLive 中选择 **火山引擎**，将 APP ID 粘贴到第一个字段，Access Token 粘贴到第二个字段
+
+**DeLive 字段：** `APP ID`、`Access Token`
 
 ::: warning 中国区域限制
-火山引擎注册通常需要中国手机号和实名认证。
+火山引擎注册需要中国手机号和实名认证，控制台界面为中文。
+:::
+
+::: tip 免费额度可续
+每个应用 20 小时免费额度，个人使用轻松用 1-2 个月。用完后只需重新创建一个新应用，即可获得新的 20 小时免费额度。
 :::
 
 ---