クイックスタート
このガイドでは、Castrのすべての機能について説明します。
- はじめる — Create your Castr account and run your first stream
- MultiStreamの使い方 — Push one live stream to multiple platforms at once
- 動画収益化の使い方 — Charge viewers for access to your video content
- トランスコーダーの使い方 — Convert your live video into several quality levels
- クラウドTVプレイアウトの使い方 — Loop pre-recorded videos on a regular schedule
- クラウドライブビデオトランスコーディングサーバーの使い方 — Handle heavy encoding work in the cloud instead of your computer
- 動画ホスティングの使い方 — Store video files and embed them on your own website
- IPカメラのストリーミングの使い方 — Send an IP camera feed straight to a streaming platform
- ホワイトラベルOTTプラットフォームの使い方 — Launch your own branded video streaming service
所要時間： 各作品につき5分
このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案
このガイドを信頼する理由
I have used Castr for eight months and tested every feature covered here.
This tutorial comes from real hands-on streaming — not vendor screenshots.
Castr is one of the most capable live streaming software tools available today.
But most live streamers only ever touch the multistreaming tab.
This guide shows you how to use Castr feature by feature.
スクリーンショットとプロのアドバイスを交えながら、手順を一つずつ解説します。
Castrチュートリアル
This Castr tutorial walks through every feature, from your first stream to advanced setups.
カストル
Broadcast one live stream to more than 30 social media destinations at once. Castr handles multistreaming, video hosting, and pre-recorded premieres from a single dashboard. Start with a 7-day free trial.
Castrを使い始める
Before touching any feature, finish this one-time setup.
約3分かかります。
Here is what the setup looked like when I ran it myself:
それでは、各ステップを順を追って見ていきましょう。
Step 1: Create Your Castr Account
Go to the Castr website and click Sign Up.
Enter your email, then click activate trial to open the 7-day free trial.
The trial covers multistreaming, video hosting, and every paid feature.
✓ チェックポイント: チェックしてください 受信トレイ 確認メールについて。
Step 2: Open the Castr Dashboard
Castr runs in your browser, so there is no software to download.
Log in and the Castr dashboard loads with every product in the left sidebar.
これは以下のようなものです。
✓ チェックポイント: You should see the main dashboard and your plan name.
Step 3: Create Your First Stream
Click Create, then pick New Live Stream from the menu.
Give it a stream name you will recognise later.
Then pick the hosting region closest to your current location.
Streaming from Brazil or Argentina? Choose South America for the lowest delay.
Getting this wrong adds a second or two of delay for every viewer.
If you have no encoder yet, you can live stream directly from your browser webcam.
That is enough to confirm the account works before you build a real setup.
✅ 完了: 以下の機能はすべてご利用いただけます。
Castr MultiStream の使い方
マルチストリーム lets you send one live video to over 30 platforms at once.
That means YouTube, Facebook, Twitch, and リンクトイン all get the same broadcast.
以下に、その使用方法をステップごとに説明します。
Step 1: Add Your Publish Destinations
Open your stream, then click Add Platform under publish destinations.
Connect YouTube and Facebook by signing in with those accounts.
Each destination can carry its own title and description.
Twitch, LinkedIn, and other platforms connect the same way in a few clicks.
Step 2: Connect Your Encoder
Copy the RTMP URL and stream key from the stream dashboard.
Paste both into Open Broadcaster Software under Settings, then Stream.
これは以下のようなものです。
✓ チェックポイント: All destination toggles should turn green.
ステップ3：ライブ配信を開始する
Hit Start Streaming in your encoder and watch the preview window fill in.
Castr pushes your feed to every enabled destination within a few seconds.
Leave the dashboard open and watch each platform report a healthy connection.
✅ 結果: One broadcast now reaches a much wider audience across multiple destinations.
💡 プロのヒント: Castr aggregates comments from all platforms into one window, so audience interaction stays in a single place.
Castrの動画収益化機能の使い方
動画収益化 lets you charge viewers for access to a stream or library.
以下に、その使用方法をステップごとに説明します。
Step 1: Turn On Paywall
Open the Monetization tab and switch the paywall on for a chosen video.
This works for both live sessions and anything already sitting in your library.
Step 2: Set Your Price and Access Rules
Pick a one-off ticket price or a recurring subscription plan.
Add password protection if you also want a private guest list.
これは以下のようなものです。
✓ チェックポイント: A payment screen should appear on your test link.
Step 3: Share the Paid Link
Send the checkout link by email or post it on social media.
Buyers get instant access, and Castr handles the payment side for you.
✅ 結果: Your video content now earns money without a separate payment tool.
💡 プロのヒント: Run one free episode first — viewers pay far more readily after they trust your production quality.
Castrトランスコーダーの使い方
トランスコーダ turns one incoming feed into several quality levels automatically.
Viewers on slow connections then get a lower rung instead of a frozen player.
以下に、その使用方法をステップごとに説明します。
Step 1: Enable Transcoding
Open your live stream settings and switch Transcoding on.
The toggle sits under the same panel as your ingest and security options.
Step 2: Pick Your Output Ladder
Choose which renditions to publish, such as 1080p, 720p, and 480p.
Match your stream’s resolution to your real internet upload speed.
これは以下のようなものです。
✓ チェックポイント: The preview player should offer a quality selector.
Step 3: Test Before Going Live
Run a short private broadcast and switch renditions manually to confirm each one works.
Five minutes of testing here saves an hour of complaints later.
✅ 結果: Every viewer gets a watchable stream regardless of their internet connection.
💡 プロのヒント: Keep your keyframe interval at two seconds and your frame rate steady, or renditions will drift out of sync.
Castr Cloud TV Playout の使い方
クラウドTVプレイアウト lets you schedule pre-recorded videos as if they were live.
以下に、その使用方法をステップごとに説明します。
ステップ1：ファイルをアップロードする
Open Playout and upload the clips you want to run.
Longer files work best, since constant switching draws attention to the loop.
Step 2: Build the Playlist
Drag your pre-recorded videos into playing order on the timeline.
Set a premiere time, or loop the playlist 24/7 on a regular schedule.
これは以下のようなものです。
✓ チェックポイント: The timeline should show a filled 24-hour bar.
Step 3: Point It at a Destination
Attach the playout channel to any live stream and let it run unattended.
Swap clips whenever you like without ever stopping the channel.
✅ 結果: A 24-hour channel runs without you sitting at a computer.
💡 プロのヒント: Playout is how small teams save time — record on Monday, then premiere a fresh episode every weeknight.
Castr Cloud Live Video Transcoding Server の使い方
クラウドライブビデオトランスコーディングサーバー moves heavy encoding work off your own machine.
Your laptop sends one clean feed and Castr’s servers do the rest.
以下に、その使用方法をステップごとに説明します。
Step 1: Choose Your Ingest Point
Create a new stream and pick the ingest server nearest to you.
Distance matters more than raw bandwidth for connection stability.
Step 2: Send a Single High-Quality Feed
Configure your encoder for one strong output instead of several.
Castr accepts RTMP, SRT, and MPEG TS streams from broadcast hardware and other sources.
これは以下のようなものです。
✓ チェックポイント: Stream health should read stable with no dropped frames.
Step 3: Monitor Bitrate
Watch the health graph for bitrate dips during your first ten minutes.
Steady numbers mean your setup will hold for a two-hour session.
✅ 結果: Your computer stays cool and responsive during long broadcasts.
💡 プロのヒント: Plug into Ethernet instead of Wi-Fi — a fast internet connection with a cable beats a faster one over wireless.
Castrビデオホスティングの使い方
動画ホスティング gives you ad-free cloud storage plus a player for your own website.
以下に、その使用方法をステップごとに説明します。
Step 1: Upload and Organise
Open the Video Hosting tab and create folders before you upload anything.
A folder per series keeps a growing library searchable six months from now.
Step 2: Grab the Embed Code
Open any file and copy the embed code or the plain embed URL.
Paste the iframe into your page and the player inherits your branding.
これは以下のようなものです。
✓ チェックポイント: The player should load on your page without ads.
ステップ3：パフォーマンスの追跡
Connect Google Analytics to see which videos hold attention longest.
Drop-off points tell you exactly where your edits run too long.
✅ 結果: Your video streaming lives on your domain instead of a competitor’s.
💡 プロのヒント: Castr’s post-production tools add chapters, AI captions, and clips before you ever share the link.
Castr IPカメラストリーミングの使い方
IPカメラストリーミング sends a security or PTZ camera feed straight online.
No computer sits in the middle, which suits churches, sites, and wildlife feeds.
以下に、その使用方法をステップごとに説明します。
Step 1: Find Your Camera Settings
Open your camera admin panel and locate its RTMP or RTSP output fields.
Most modern cameras hide this under a menu called Network or Streaming.
Step 2: Paste the Castr Credentials
Copy the stream URL and key from Castr into the camera.
これは以下のようなものです。
✓ チェックポイント: The Castr preview should show your camera within thirty seconds.
Step 3: Lock It Down
Add domain whitelisting and geo country whitelisting so the feed only plays where you allow.
✅ 結果: A camera broadcasts around the clock with no operator present.
💡 プロのヒント: Cameras rarely ship with good audio — pair one with a good microphone feeding a small hardware encoder.
CastrホワイトラベルOTTプラットフォームの使い方
ホワイトラベルOTTプラットフォーム lets you launch a branded streaming service of your own.
以下に、その使用方法をステップごとに説明します。
Step 1: Set Up Your Portal
Add your logo, colours, and custom domain in the OTT settings.
Step 2: Build the Catalogue
Group your live channels and recorded library into browsable collections.
Collections behave like rows on a familiar streaming service homepage.
これは以下のようなものです。
✓ チェックポイント: Your portal should load on your domain with your branding.
Step 3: Open the Doors
Publish the portal and invite viewers to create accounts.
Every sign-up becomes an email address you actually control.
✅ 結果: You own the audience relationship instead of renting it from a social network.
💡 プロのヒント: Keep a free tier on the portal — it converts browsers into subscribers far better than a hard paywall.
Castrのプロ向けヒントとショートカット
After eight months of testing, here are the shortcuts I actually use.
キーボードショートカット
| アクション | ショートカット |
|---|---|
| Start or stop stream (OBS) | Ctrl + Shift + S |
| Switch scene (OBS) | Ctrl + 1 to 9 |
| Mute microphone (OBS) | Ctrl + M |
| Refresh Castr dashboard | Ctrl + R |
ほとんどの人が見逃す隠れた機能
- Restream to a backup: Add a second Castr stream as a destination so one failure never kills the broadcast.
- Per-platform titles: Write different titles for YouTube and Facebook inside the same session for better search reach.
- Recording toggle: Switch on cloud recording before you go live and your stream saves itself to cloud storage.
Castr 避けるべきよくある間違い
Mistake #1: Guessing Your Bitrate
❌ 間違い: Setting 1080p at 8000 kbps on a 10 Mbps upload line.
✅ 右: Run a speed test, then use half your internet upload speed as your bitrate ceiling.
Mistake #2: Skipping the Test Stream
❌ 間違い: Going live to every platform without ever checking the preview player.
✅ 右: Run a private test, confirm video and audio levels, then open the doors.
Mistake #3: Treating Audio as an Afterthought
❌ 間違い: Relying on a laptop microphone and hoping viewers stay.
✅ 右: People forgive soft video but leave 即座に over bad sound, so buy a good microphone first.
Castrのトラブルシューティング
Problem: Stream Keeps Buffering
原因： Your bitrate is higher than your connection can carry.
修理： Drop the bitrate, lower the frame rate to 30, and switch to Ethernet.
Test your internet speed at the time of day you normally broadcast.
Problem: One Platform Will Not Connect
原因： The channel token expired or that account lost its live permission.
修理： Remove the destination, reconnect it, and check the platform allows streaming on your account.
New YouTube channels wait 24 hours before mobile streaming unlocks.
Problem: Encoder Rejects the Stream Key
原因： The RTMP URL and key were copied with a trailing space.
修理： Paste both fields again carefully, then restart Open Broadcaster Software before retrying.
Regenerate the key from the dashboard if the error survives a restart.
📌 注記： If none of these fix your issue, contact Castr support.
Castrとは何ですか？
カストル is live streaming software that pushes one broadcast to many platforms at once.
Think of it as a power strip for your livestream.
Castr works as a hosted streaming platform, so nothing installs on your computer.
Castr helps small teams save time by removing the need for separate tools.
こちらの簡単な概要をご覧ください。
Castr’s products cover live video, hosting, and branded delivery.
- マルチストリーム: Broadcast to over 30 destinations from one encoder feed
- 動画収益化： Charge for access with tickets or subscriptions
- トランスコーダー: Deliver several quality levels to match viewer connections
- クラウドTVプレイアウト： Schedule pre-recorded content as a rolling channel
- Cloud Live Video Transcoding Server: Offload encoding to Castr’s servers
- 動画ホスティング： Ad-free storage plus an embeddable player
- IPカメラのストリーミング配信： Publish camera feeds without a computer
- ホワイトラベルOTTプラットフォーム： Run a branded portal on your own domain
The interface is genuinely user friendly, which is rare in this category.
詳細なレビューについては、こちらをご覧ください。 Castrのレビュー.
Castrの価格
2026年におけるCastrの費用は以下のとおりです。
| プラン | 価格 | 最適な用途 |
|---|---|---|
| スターター | 月額12.5ドル | Solo creators running their first stream |
| 標準 | 月額33.5ドル | Regular streamers using multiple platforms weekly |
| プロ | 月額62.5ドル | Podcasters needing hosting and monetization |
| プレミアム | 月額104.5ドル | Teams running playout and higher bandwidth |
| ウルトラ | 月額250ドル | Broadcasters with large viewer counts |
無料トライアル: Yes — 7 days with every feature unlocked, including multistreaming.
返金保証: Yes — Castr offers a 30-day refund window on paid plans.
Plans differ mainly on bandwidth, storage, and how many destinations run at once.
Annual billing knocks a meaningful amount off every tier.
💰 最もお得な価格: Standard — enough bandwidth for weekly shows without paying for playout.
Castrと代替案の比較
Castrは他社と比べてどうでしょうか？競合状況は以下のとおりです。
The right platform depends on whether you mostly record or mostly broadcast.
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| カストル | Multistreaming and hosting | 月額12.5ドル | ⭐ 3.8 |
| ポッドキャスト | オーディオ編集 | 月額14.99ドル | ⭐ 4.4 |
| リバーサイド | Recording quality | 月額19ドル | ⭐ 4.6 |
| 再ストリーム | Platform count | 月額19ドル | ⭐ 4.4 |
| ストリームラボ | Gaming overlays | 月額19ドル | ⭐ 4.3 |
| ストリームヤード | Browser studio | 月額25ドル | ⭐ 4.5 |
| ゼンカスター | Remote podcasts | 月額20ドル | ⭐ 4.3 |
| エカム | マック 生産 | 月額16ドル | ⭐ 4.5 |
おすすめ商品：
- 総合ベスト： Castr — the widest feature spread for the lowest entry price
- ベスト予算： Castr Starter — under $13 a month with real multistreaming
- 初心者におすすめ： StreamYard — nothing to install and a gentle learning curve
- ポッドキャストに最適： Riverside — local recording keeps guest quality high
🎯 Castr の代替品
Castrの代替サービスをお探しですか？おすすめの選択肢はこちらです。
- 🚀 ポッドキャスト: Strong AI audio cleanup and transcription, better suited to podcast production than broadcasting live to social media.
- 💰 リバーサイド： Records each guest locally in high quality, so a weak internet connection never ruins the final file.
- 🎨 再配信: The closest direct rival, with a similar destination list and a slightly more polished browser studio.
- ⚡ ストリームラボ: Built for gamers, with overlays, alerts, and tight Twitch integration baked into the streaming software.
- 🔒 Streamyard: Runs entirely in the browser and makes guest invites painless for interview-style shows.
- 🧠 ゼンカスター： Remote-first recording with separate tracks per guest, ideal for 編集者 完全な制御を望む人。
- 🏢 エカム： A Mac-only production suite offering camera switching and graphics that rival hardware desks.
全リストについては、こちらをご覧ください。 カストルの代替品 ガイド。
⚔️ カスター比較
Castrと各競合他社との比較は以下のとおりです。
- Castr vs Podcastle: Castr wins on live delivery and multiple destinations; Podcastle wins on polishing recorded audio afterwards.
- カスター対リバーサイド： Riverside captures better raw footage, but Castr reaches a wider audience the moment you go live.
- Castr vs Restream: Very close race; Castr adds video hosting and OTT, while Restream has a friendlier studio.
- Castr vs Streamlabs: Streamlabs suits gamers chasing alerts and overlays; Castr suits businesses that need reliability and security.
- Castr vs StreamYard: StreamYard is easier on day one; Castr costs less and scales further as you grow.
- Castr対Zencastr： Zencastr is a podcast recorder first; Castr is a video streaming platform first.
- Castr対Ecamm： Ecamm gives finer production control on Mac; Castr works on any operating system in a browser.
今すぐCastrを使い始めましょう
Castrの主要な機能をすべて使いこなせるようになりました。
- ✅ マルチストリーム
- ✅ 動画収益化
- ✅ トランスコーダー
- ✅ クラウドTV再生
- ✅ クラウドライブビデオトランスコーディングサーバー
- ✅ 動画ホスティング
- ✅ IPカメラストリーミング
- ✅ ホワイトラベルOTTプラットフォーム
次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。
Most people start with MultiStream, for example a simple test to YouTube.
5分もかかりません。
よくある質問
castrはどのように機能しますか？
You connect an encoder to Castr with an RTMP URL and stream key. Castr then copies that single live stream out to every destination you enabled.
YouTubeをCastrに接続するにはどうすればよいですか？
Open your stream, click Add Platform, choose YouTube, and sign in. Castr requests broadcast permission, then pushes your live video to that channel automatically.
Castrは使いやすいですか？
Yes. The dashboard is user friendly and browser based, so most people finish their first stream within ten minutes of signing up.
How much does castr cost?
Castr plans start at $12.5/month for Starter and rise to $250/month for Ultra. A 7-day free trial unlocks every feature first.
Castrはどのプラットフォームをサポートしていますか？
Castr streams to more than 30 platforms, including YouTube, Facebook, Twitch, LinkedIn, and any custom RTMP destination such as your own website.
English 
Spanish 
Chinese 
German 
French 
Arabic 
Russian 
Portuguese 
Japanese 
Korean 
Italian 
Turkish 
Dutch 
Polish 
Indonesian 
Thai 
Vietnamese 